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sanseric
10-01-2002, 08:02 AM
I am putting a 15 cv rx in my street force have it done on sat. I think the 21 is to strong for rc10 A .15 CVR will do fine I have a .12 in mine it smokes most cars i race.:D

J_M_R
10-01-2002, 12:12 PM
I picked up some associated rubber sealed bearings for the clutch from my lhs yesterday, so hopfully they wont come apart. But i hit a tree with my rc10gt so wont be running untill i get the parts(broken a arm and rear arm mount).

trxstr1961
10-01-2002, 10:12 PM
FINALLY after 3 hours i got my new(used) gt together as far as i can what im missing is the following:

complete slipper clutch
brake pad
dogbones/cvds (has one cvd in it)
nose brace tubes
front bumper

if anyone has any of these let me know if u dont need them! thank u:)

UPDATE!

got a set of rear shocks, and body mounts on it. now it needs a body also, since my rtr bodys dont fit. :(

mrcthunderking
10-02-2002, 08:33 PM
I use to have an older rc10gt that melted spur gears once in awhile. I am thinking of buying the team built gt now. I'm just gonna bash, not race. Is the Robinson steel gear combo a good investment for me? Or, is there something bad about it?

thanks,

t-king

atm92484_3
10-02-2002, 09:40 PM
I personally wouldn't get metal gears. Instead, invest in a Trinity TK1200 chassis brace (works on tub chassis only) and a RRP machined plastic spur gear.

micro_man
10-03-2002, 01:04 AM
Hey guys,
Does the GT requre a certain starter box? I found that it wont fit mine. It might just be because i am using the pull start mounts. LMK.

thanks

rocknbil
10-03-2002, 01:14 PM
Originally posted by mrcthunderking:
I use to have an older rc10gt that melted spur gears once in awhile. I am thinking of buying the team built gt now. I'm just gonna bash, not race. Is the Robinson steel gear combo a good investment for me? Or, is there something bad about it?

MRC do you really mean melted or stripped?
If they are MELTED, you have your gear lash too tight. When you adjust the engine mounting, make sure there's just a little looseness between the pinion and spur, spin it around and check it all the way around. You should *ALMOST* be able to slip a piece of paper between the gear teeth.

If you mean stripped, there's a discussion in this thread on some of the causes and solutions to this, the most common of which is the twist and flex of the older tub chassis:

http://www.radiocontrolzone.com/forums/showthread.php?s=&threadid=35995&perpage=25&pagenumber=214

As for metal gears, the FAQ on associated's site makes a very good point. This is not a direct quote but it's close:

Gears strip for a REASON. If you strip a gear, you have a $4 part to replace. When you use a hardened metal or even aluminum spur gear, if it strips again, it is likely it will also damage the pinion on the clutch bell. You now have an additional $8 part to replace. It's best to stick with the plastic spur and find out the nature of the problem.

Originally posted by micro_man
Hey guys,
Does the GT requre a certain starter box? I found that it wont fit mine. It might just be because i am using the pull start mounts.

What starter box, and how doesn't it fit?

I have a 1/8 scale OFNA box, the one with the single big motor, and I had to put the motor in the cross-box position so it sticks out of the side and the doughnut goes with the length of the box. This causes the rear left wheel to be tight against the motor when the GT is in the right position. It's not quite right, but it works. We then got the smaller two-motor OFNA with my wife's truck, and by fiddling with the positioning tabs it fits perfectly.

By the way if you're new at all to this I'll say from my OWN limited experience getting the starter box set up for the GT is a bit of a pain, it has to be just right, but once it's right it rools. :)

Also if you have a pull-start flywheel, which is narrower than a non-PS, you'll not only have some trouble getting it to catch (because it's narrower, has less surface area against the doughnut) it can wear out the doughnut faster.

micro_man
10-03-2002, 04:20 PM
No im not new to this. I have been in nitro rc for about 5 years. It is my first GT though. I went out and bought the MIP lightweight flywheel, but i havent checked it with the starter box yet. The box I have is the 1/10 scale ofna powerstart. It has 2 motors and the little power panel. So you are saying that the rubber donut is running parallel to the long side of the box right? Not across the center?

LMK
Thanks,
kurt

ross
10-03-2002, 04:44 PM
Originally posted by micro_man
No im not new to this. I have been in nitro rc for about 5 years. It is my first GT though. I went out and bought the MIP lightweight flywheel, but i havent checked it with the starter box yet. The box I have is the 1/10 scale ofna powerstart. It has 2 motors and the little power panel. So you are saying that the rubber donut is running parallel to the long side of the box right? Not across the center?

LMK
Thanks,
kurt

I am using a pullstart engine with pullstart engine mounts and my starter box works great. The wheel on the starter box should be paralell with the starter box at lengh way.



Ross.

rocknbil
10-03-2002, 06:18 PM
Originally posted by micro_man
I went out and bought the MIP lightweight flywheel, but i havent checked it with the starter box yet......So you are saying that the rubber donut is running parallel to the long side of the box right? Not across the center?

Ross is correct, spin along the LENGTH of the box. If it's a "universal" box you can bolt it in either way, along the length works for GT's. Yours is the better version of my wife's - same thing w/o the panel. You should be able to unscrew the whole motor/doughnut bracket and turn it 90°.

One word though, no matter what people say about the MIP flywheel I hate trying to start an engine with one of those little buggers! We've got two of them, the only one that's mounted is on my wife's GT, and man it's hard to get it to get fuel up to the engine and start. The "ribbing" on the edge is a lot smoother than the stock flywheel and it's really hard to get a grip on it.

ritchies rc10gt
10-05-2002, 02:51 AM
Originally posted by rocknbil
Ross is correct, spin along the LENGTH of the box. If it's a "universal" box you can bolt it in either way, along the length works for GT's. Yours is the better version of my wife's - same thing w/o the panel. You should be able to unscrew the whole motor/doughnut bracket and turn it 90°.

One word though, no matter what people say about the MIP flywheel I hate trying to start an engine with one of those little buggers! We've got two of them, the only one that's mounted is on my wife's GT, and man it's hard to get it to get fuel up to the engine and start. The "ribbing" on the edge is a lot smoother than the stock flywheel and it's really hard to get a grip on it.

im running the MIP heavy wieght flywheel and mine starts fine.im also using the Ofna blue 1/8 scale starter box,the one with 1 motor and a 12v battery

Jester
10-06-2002, 07:18 PM
Hey everyone. I need some help. I just got an RC10GT RTR+, and I was able to get 1 and 1/2 tanks thru before it stripped the spur gear!!! I went and got 2 more gears just to be safe, and I got another tank and 1/2 thur, and it ate up another. Now, between the first and the second gears I adjusted the brake linkage so that the drag wouldn't be so bad, but that didn't seem to make a difference. It was running fine, and all of a sudden the RPM's shot thru the roof, and I knew that another gear was gone. Has anyone else had this problem? WHat can I do? I had this problem with a Nitro Rush, but have never heard of this with an RC10GT. I haven't even been able to drive this thing yet!! Grrrrr I ordered the Robinson Racing Steel Spur gear and Clutch bell, but what can I do to solve this problem before they get here?? Thanks to all.

J_M_R
10-06-2002, 09:43 PM
Make sure the gear mesh is right. Also, make sure that the screws holding the engine to the mount, and the screws holding the mount to the chassis are tight. I have only stripped two spur gears on my gt and i have had it for 8 months now. They stripped because the screws holding down the engine came lose.

Jester
10-06-2002, 10:07 PM
Okay, I'll check them. I was going to go thru and check everything tomorrow anyway. It just bums me out, cux I took it out of the box, thru some batts. in it, and some fuel, and this is what I get. LOL Thanks again. Later....

micro_man
10-07-2002, 08:05 PM
Okay I got it going.

I like the mip flywheel alot. It works perfect.

I am having some trouble with engine tuning.....I have an os 12 cvr. I put it to factory settings, then when i start it, it idles fine for as long as i want it too. Then when I give it a little throttle it just instantly dies. It doesnt change engine noise or anything....it just cuts off. Does any one know what the problem could be? The other thing is, the idle seems kind of high. I Checked the gap for the throttle opening and it is just about exactly .5-1mm gap.

Are these signs of rebuild time or what? How much do os piston/sleeve sets cost?

LMK
thanks

micro_man
10-07-2002, 09:29 PM
WEll,
I have done some investigating. when i let it idle with the air filter off. It made me realize that there is something wrong with the carb. WHen the engine cuts out like i was explaining earlier, a litlle poof of unburnt gas comes out of the carb. Do i just need to clen the carb real good or what?

lmk

atm92484_3
10-07-2002, 10:04 PM
It sounds like your engine is actually too rich. Try leaning it a little bit and try restarting it.

DirtKite
10-08-2002, 03:19 AM
You may want to try some thread lock on those engine mount screws. I'm suprised AE didn't do that already... :confused:

DirtKite
10-08-2002, 04:13 AM
Here’s a little story. I bought the RTR truck (not the +) a couple a years ago. I got it for fun and just bashed it around a lot... stripped a couple of those plastic steering servo gears and scratched up the body and chassis pretty good after properly breaking in the engine, etc.
So the wife and I decided to go out to the WA coast one weekend and in those days I had the GT in the trunk of the car all the time. Only this time it was accidental that the GT was along for the trip... well sort of.
Long story short, I ended up taking the GT out on the beach. Now I know this isn't a good idea and since I had also accidentally brought along all my cleaning stuff, I figured what the hell. Anyway this is one of those beaches that you can drive on (legally), and I was having a grand ole time when all of a sudden the radio picked up some interference and the car took a plunge into the Surf. Oh, it was nasty! The car was about 20 or 30 yards from me and a wave or 2 washed completely over it before I got to it. When I did get to it I picked it up and watched as the brown, salty, sandy water streamed out of the exhaust pipe. I thought, “will this be the end of this little car?”
I went back to the hotel and started disassembling and cleaning: read lots of WD40. I didn't spend too much time with it because I’m feeling a little pressure from the wife at this point... after all we are taking a little weekend away here. So I did the best job I could without getting locked out of the room.
Once I got home I spent the better part of 3 hours cleaning out the internal engine parts, etc. Lots of sand and water. I thought I would never get it all out.
The next day, to my surprise, it fired right up and ran like a charm (until I overheated it about 3 weeks later). So, I just put it away and thought I’ll get it running again someday.
Tonight I just finished putting a new AE .15 engine on it. I've also upgraded to ball bearings all around, MIP CVDs, and a metal geared steering servo. I plan to start breaking in the engine next weekend. Man, I feel like a new kid again :D

rocknbil
10-08-2002, 11:41 AM
This topic mayget moved, see the forum rules . . . but at any rate . . .

So let's suppose the engine bolts are NOT slipping and you have adequate gear lash. When is this happening, on a jump? You know of course if you stay on the throttle while you're in the air that's one of the best ways to strip a spur, right? When you go airborne you should make sure you stay off the stick when it touches down - there's little chance that the engine/clutch will be spinning at the same speed as your ground speed and that's enough to strip out a spur. When you're off the stick the clutch disengages enough to spin free when you touch down.

rocknbil
10-08-2002, 11:47 AM
Originally posted by DirtKite
......I didn't spend too much time with it because I’m feeling a little pressure from the wife at this point...

Pressure with what, a FRYING PAN? LOL!!! I'm surprised she let you take it along!


......Tonight I just finished putting a new AE .15 engine on it......Man, I feel like a new kid again :D

Now THAT

Is what this hobby is supposed to be about.

Are you still married? :D

(I can hear it now. "Either that stupid car goes or I go."

Man I miss her. LOL!!)

trxstr1961
10-08-2002, 01:05 PM
where di u get the A.E 15 at and how much was it, since im needing a new one:confused:

low_ridah10
10-08-2002, 05:14 PM
is simply letting off the gas enough?? or do you have to put on the brakes too?? and also is it ok to have the throttle on while in the air as long as you dont land with the throttle on?

atm92484_3
10-08-2002, 06:36 PM
Whether you let off or give brake really depends on how much adjustment you want. I've found that just letting off is normally enough to bring the nose down, but I also have a little dragbrake dialed into my truck. When you're in the air, I wouldn't mash the throttle and over-rev the engine, but its okay to give it a little gas. I would reccomend letting off just intime for landing though (it won't be as hard on the drivetrain and the truck will land and steady out better anyways).

DirtKite
10-08-2002, 11:16 PM
yeah we're still married, ove the years we've gotten pretty good at puttin up with each other + she's a great gal. I've been lucky in that regard.

rocknbil, I think you're on to something there... jumping and landing with the throttle open probably would strip the spur gear. I've never stripped one, but i think i've broken just about everything else before :o

trxstr1961 I got the new AE thru the AE engine replacement policy. you should have one if you bought the AE engine. you simply return the old engine (if it's not running anymore) and they will replace it for $70 + shipping (there's a number to call on the paper). If you've lost the paper you can print it from Team Associated's website or was it AE's website... anyway it's one of those.

rocknbil
10-09-2002, 11:36 AM
Originally posted by low_ridah10
is simply letting off the gas enough?? or do you have to put on the brakes too?? and also is it ok to have the throttle on while in the air as long as you dont land with the throttle on?

There's actually two topics here, potential spur stripping and landing attitude. To prevent spur stripping yes, letting off is enough. This idea is that the clutch disengages (or at least is not in full lock) when you touch down so that the wheels can get up to ground speed before you nail the throttle again. If you time it right it won't even skip a beat.

The second is aerial attitude, how it's coming in for the landing. You use "blips" on the throttle, which actually uses the mass of the wheels as leverage, to adjust. If you're starting to nose in, a little blip on the throttle will help raise the nose. If you're starting to tail-in (a little is good, but don't land on your battery pack!) a little brake should tip the nose down. in either case, leave the throttle at dead neutral the precise millisecond it touches down. It doesn't take much, you don't need to slow down, coast, or go dead, just a quick lift for that one millisecond . . . whoosh . . :D

Originally posted by DirtKite
... jumping and landing with the throttle open probably would strip the spur gear.

It comes right form the AE site and I've only replaced ONE spur gear in 6 months, and that's because I popped an e-clip on the clutch!

(Fortunately for me my wife is also into RC, her GT is all tricked in purple anodized hopups and is sweeter than mine!)

choops
10-10-2002, 11:06 AM
how loose do you guys set the slipper clutch? Ran truck first time last night. Spins tires too much. If too loose will it melt the spru gear?

rocknbil
10-10-2002, 12:51 PM
Originally posted by choops
how loose do you guys set the slipper clutch? Ran truck first time last night. Spins tires too much. If too loose will it melt the spru gear?

I'm presuming you meant the traction control clutch on the tranny, not the clutch on the clutchbell/pinion.

It depends on how you drive and traction conditions.

My rule of thumb is, whatever surface I'm on, from a dead stop I nail the throttle to full, I should get only a moderate tossing of dirt and the clutch should fully engage within 20 feet max. I drive it around the track and measure the slip and performance on varions areas - hard, soft, or bumpy - and adjust for that range on the average all around.

If it's too loose it's more likely to heat up at the slipper plates and tranny and cause damage there. It will be obvious though, you'll be throttling like mad and it won't go anywhere.

Soya
10-11-2002, 05:20 PM
Wow, 220 pages! I'm kinda bored, I think I'll look through them all:)

toddzilla
10-13-2002, 12:29 AM
is there anywhere i can find an exploded view of the stealth tranny diff? i've got a used gt and don't have a manual.. i had an rc10 years ago and i think this diff is missing some internal components..

baneonrt
10-13-2002, 02:09 AM
Hello, I've been lurking for a while (I've read the entire thread) but just now got my GT running so I figured I'd post about it. It started out as a circa '98 or so tub chassis Team truck (kit number 7072). I've since updated it with the factory team chassis kit and a bunch of other associated and other misc parts. I'm using an Airtronics MX-3 radio system with an Airtronics 94102 servo for throttle/brake and a Hitec HS-5645MG Digital servo for steering duty.

Here are a couple of pictures:

http://steve.baneon.org/misc/rc10gt/quarterviewbody.jpg

http://steve.baneon.org/misc/rc10gt/topviewnobody.jpg

I plan on mostly bashing with it along with some very novice racing at a couple of the local tracks. Planned upgrades include an O'Donnell headsink, titanium turnbuckles and hinge pins, and a faster throttle/brake servo. Any suggestions on other must have upgrades?

Comments, suggestions welcome :)

Steve

BinaryAvoidance
10-13-2002, 11:27 AM
Aluminum engine mounts, chassis, a few other things. Titanium turn buckles. Graphite shock towers. XXL Novak receiver. Metal gearded servos. NovaRosi .12 engine.

Its real nice.

Anyone have any opinions or ideas on what i should or could do to make the car better. Or things to check to make sure its working good.

Ps: Already have a T3 team.....

r/c junkie 287
10-13-2002, 02:19 PM
r these trucks really good im gonna buy a used 1 with new crank and piston sleve rtr for $150 is just he basic rtr version is that a good deal?

toddzilla
10-13-2002, 03:35 PM
need more info junkie.. but they are very good trucks. might be a good deal but i'm done buying used nitro... its not worth it unless you see the car running in my opinion..

Insane Rival
10-13-2002, 06:52 PM
OK sorry to sound like a begger, but im 12 years old, cant do chores/lawn work/etc. money doesnt come easy. i have a used GT my uncle had in his attic. Anyways, does anyone have a stock rtr heatsink they could send me???? sorry to ask but i love my gt and i cant get the 20 bux

rocknbil
10-14-2002, 02:34 PM
Originally posted by toddzilla
is there anywhere i can find an exploded view of the stealth tranny diff? i've got a used gt and don't have a manual.. i had an rc10 years ago and i think this diff is missing some internal components..

the 10T, T2, and GT trannies are all identical except the t2 and GT have a bigger diff gear, rings, and outdrives. The best I could find is the parts list for the T2 here:

http://www.teamassociated.com/pdf/catalogs/cat10t2x.pdf

If that's doesn't work I'll scan you one tonight form my manual, I don't know if the GT man, has an exploded but the 10T does.

rocknbil
10-14-2002, 02:38 PM
BTW here's a modest posting (small pic, these forums are already overloaded!) of my and my wife's GT's, see more pics and specs at:

http://www.nytebyte.com/personal/rides.html

bad viking
10-14-2002, 03:52 PM
Hi, i am, gonna paint a new GR10GT FT, and i need some inspiration!!!


Please send some pictures yo me on this address: jlhustad@hotmail.com

R/C Rules!!!

bad viking
10-14-2002, 03:57 PM
Mohahahaha

popee
10-14-2002, 04:03 PM
nothing special, but didnt take too long to do and was simple to do:

http://www.j00.pwp.blueyonder.co.uk/Truck%203.jpg

http://www.j00.pwp.blueyonder.co.uk/3_cars2.jpg

http://www.j00.pwp.blueyonder.co.uk/xxx.jpg

http://www.j00.pwp.blueyonder.co.uk/GT2.jpg

Popee

OldskoolGT
10-14-2002, 09:21 PM
baneonrt,

Since you plan to race, I would reccomend captured ball ends for the both ends of the rear turnbuckles, and the steering turnbuckles ( just the end connected to the steering arms).

rocknbil
10-15-2002, 05:17 AM
Originally posted by toddzilla
is there anywhere i can find an exploded view of the stealth tranny diff?

Here you go Todd, but it is 119k and I didn't want to post it here so you might want to right-click this link, select Save Target to Disk, and look at it from your local computer, it's pretty big so you can see all the detail.

None of my GT manuals have an exploded view, this is from the 10T. As you know it's the same tranny, different diff gear size.

What possible internal parts could it be missing?

http://www.nytebyte.com/personal/images/rides/stealth.gif

WHOOPS link all fixed . . .

toddzilla
10-16-2002, 05:52 PM
second link isn't working..

i remember when i had a 10t that the long bolt that goes through the center had a small washer with a few balls around it, you put some grease or whatever on it and put the bolt through and tightened it down. when i took apart the diff i have now, it just had the bolt going through and the locknut on the other side.

the truck goes fine for about 15-30 feet then the diff loosens up and just spins without any forward motion...

could i have possibly put the diff in backwards? (lock nut on the wrong side?)

thanks for the help.

i need to get this fixed i'm selling it this weekend lol

Oriontool
10-17-2002, 12:31 AM
Need some advice. I have the RTR Plus. Recently did some upgrades(CVD's, Spur Gear, and so on). I cannot get it to idle. It constantly dies. I have set it back to factory specs for the idle and carb needles. The engine is broke in. Can I get any suggestions on tuning specs?

Thanks!

Widget
10-17-2002, 04:09 PM
I was naieve to think that because I have been in moto-X, auto brackets, and touring, that I would be able to enter this hobby with expertise. Heck, I am starting all over. And what's worst, the shop down the street has very little expertise in Nitro cars/trucks. Although they don't tell you that. But you can tell. When you ask a question, the owner goes to a catalogue and tries to bllsht you into thinking they know what they are talking about.

I just bought a Factory team RC10 GT from Ebay. I think I got a deal based on retail prices of the parts included, but in reading through some of the posts here, I can tell I am in the right place to beef up my RC education. Below is a list of what came with the truck:

OS CVR engine
HiTEC Lynx 3D with synth module in TX
HiTec Rx with channles, 66,70,80,82 crystals
Futaba servos;9101 throttle, 9404 steering
nicad rx pak
nicad tx pak
charger
MIP boost bottle
hardened steel Idler gear
MIP 4-n-1 clutch
MIP Zero maintenance ball bearing steering kit
Aluminum steering throttle servo mounts
Trinity transmission brace

Is there any comments on this setup? Being green sux.
:rolleyes: :confused: :confused: :confused:

Widget
10-17-2002, 04:19 PM
I just bought a Ofna true start universal starter box. When I line up the wheel to the fly wheel, the RC10gt is off center of the box to the right. This makes it so I can't put the guide pins in the right side of the box. Does anyone here have any suggestions?

toddzilla
10-17-2002, 06:24 PM
i know how you feel widget.. i raced real cars for a long time before i decided recently to get into nitro r/c .. i read everything i can get my hands on and i'm finding out that most of the concepts are universal.. with the exception of tuning an engine without a conventional fuel/ignition system (compared to full-scale vehicles) your truck sounds pretty nice.. i got screwed on my rc10 gt i picked up off ebay , but i got tons of extras with it so i ended up doing ok.. now i bought a monster pirate and am selling my gt this weekend..

anyway this is the best resource i've found for getting information about ANYTHING r/c related.

low_ridah10
10-17-2002, 11:39 PM
Does anyone know what would be causing my clutch bell bearings to be going on me? In 2 weeks they fell apart on my 2 times. They are dynamite red seal bearings and they just seem to fall apart. I dont have any idea what would cause it. Any help would be great because it is getting annoying! thanks

jnegrx
10-18-2002, 12:07 AM
widget
I have almost the same stuf in one of my GTs but check if you have a servo saver horn in your steering servo because the mip zero mant. replaces the stock servo saver. If your servo is metal geared then its not such a problem but if it's plastic then consider a metal geared servo and a servo saver just to be safe. I also have the ofna box and i have no problems with it, yes the pins are all to one side but it starts ok. I was thinking of making a top plate so the chassis would be more presicely centered but it's not necesary.

toddzilla
That screw with the little balls is the thrust bearing of your diff. If you don't have the little balls then your dif will not work and loosen. Go to your LHS and get a thrust bering rebuild kit then your problem will go away. Also if you put the dif backwards it will get loose but i think that this is not your main problem.

Low_ridah
do you let the engine cool down after a tank of fuel or do you just refuel and keep going? I have never damaged a bearing of my GTs(lucky i guess). But the number one cause of bearing failure is Heat. If you can, let the engine cooldown after every two tanks, ofcourse not if you are racing. But if you are bashing or practicing then let the engine rest(it's better for every piece of your truck).Try the ones AE makes for the factory truck, never had a problem. Also if you over tighten the bearing it gets deformed and wont last. Hope this helps.

popee
10-18-2002, 08:55 AM
I thought it was better to keep the engine running as it does not have to go through thermal stress everytime it heats up and ools down.

rocknbil
10-18-2002, 12:26 PM
Originally posted by toddzilla
second link isn't working..

DOY!! Sorry, it was WAAaaaYYY late and I was in a hurry, try it again, I edited it and it's correct.

Yes, the thrust beating consists of the bolt, two hardened steel washers, and SIX (not 4, not 5!) ball bearings. Put one washer on the bolt, slather up the washer with black grease, slide on the other washer, makes sure it's all greased up well, then slide the whole thing into the outdrive. The exploded view tells all.

Originally posted by Widget
....Below is a list of what came with the truck:
.... MIP boost bottle


Sounds like a great ride, have fun! MY only comments are the boost bottle and the steering setup. I hear the boost bottles are basically worthless, take it or leave it. Some say they help smooth out the idle . . I saw no difference and plugged the hole.


MIP Zero maintenance ball bearing steering kit

OK many people will argue this but I don't like these much. I always rip them out and return to stock, here is why:

The 10T and GT trucks put a lot of stress on the front tires and hence the steering servo. When I first started with 10T trucks, I had a problem with push on big sweeping turns - it wouldn't dig in and slid higher and higher on the track until I either let off the juice or hit the pipe. For the longest time I thought the prob. was traction. The owner of one of the tracks I was at said he was watching my truck and when I hit a turn hard the wheels were straightening back out, my servo was too weak.

So I get a S9404 111 oz/.11 sec all metal gear steering servo up front, problem went away, now I have to sometimes turn down the D/R on the radio to keep from oversteering.

NOW . . . with the MIP BB steering setup you have to use a servo saver on the servo. The resistance of these are set and you have no control over when they "give" on a hard bump. I found this irratic and difficult - in reality you just never KNOW when your servo saver is giving up steering. Additionally, the original steering setup is smooth enough. I see no reason at all to require BB's in my steering and find the control over when my servo save slips much more important.

Already having it in your truck I wouldn't take it out, but that's the only things I see, have fun!

rocknbil
10-18-2002, 12:33 PM
Originally posted by low_ridah10
Does anyone know what would be causing my clutch bell bearings to be going on me?

I use the dynamites, they're cheaper and also because I had clutch problems at first.

Very important: without starting up the truck, turn on the radio and check to see that the wheels spin free. Are you getting a little brake at idle? This could do it. If you have brake at idle you've likely got the idle set high to compensate, causing the clutch to engage, causing the bell to heat . . .

MIP clutch or stock teflon shoes? I would imagine the teflon shoes would run a little cooler if the above is the case . . .

Review your setup, make sure there's not some extra slop somewhere. If the clutch bell a stock or aftermarket, does it fit right?

My problem was not the bearings but I couldn't seem to keep the e-clips on. :)

rc10gtisthebest
10-18-2002, 10:32 PM
Micro_Man,

How is the gt? then engine only had about 2 gallons on it. I have heard of a CV-R lasting as much as 5.

-Todd

toddzilla
10-18-2002, 10:57 PM
thanks rocknbil, that helps alot, i knew there was something missing.. not bad for assembling my original stealth diff back when they first came out.. sometimes my memory freaks me out :D

xxxkat
10-19-2002, 12:11 AM
Hey rocknbill whats up,used to talk to you on a different site,I do think your right on the mip steering,I had one,went back to stock,I just got rid of my losi and got an associated gt,what servos should I run on this truck,I HAD used hitechs but way to many problems,I bought the truck used no motor,I just bought a mugen mt12(nova).

baneonrt
10-19-2002, 01:05 AM
There was some talk on the last page about not being able to find an exploded view of the GT. Here is what I found on the Associated site:

http://www.teamassociated.com/pdf/catalogs/drawing_gt.pdf

Hope this helps...

Steve

Widget
10-19-2002, 01:09 AM
Todzilla,Jnegrx,Rocknbil the rest, thanks for the input. I'm happy I found this thread. Hey Baneort, that is a good look'n crowd pleazr paint job. Simple, but looks thick and smooth.

Jamie
10-19-2002, 09:29 AM
low_ridah10,
The Dynamite red seals can't take the heat. Get the AE bearings and your problems will be over. One day when I get some time I am going to see if I can adapt the clutch from my Nitro Rustler to my GT. It has a far superior bearing system that lasts 4 times as long as the little and expensive GT flanged bearings and you can use the cheaper Dynamite red seals.

ross
10-19-2002, 12:34 PM
While we are talking about bearings: The bearings in my rear hubs have just about had it, and I want to replace them. I would replace them with the AE ones but I have found that the seals fall out of the AE ones very easy. The seals have only fell out the rear hub ones, my clutchbell, tranny, front wheel bearings are all in great condition.

Which bearings do you reccomend that will work well in the rear hubs but have more durable seals than the AE ones?


Cheers


Ross.

jayskiia
10-19-2002, 01:42 PM
hey guys, i just bought a gt plus rtr. i am thinking of buying a proline or trinity body for it in the near future, but there seem tobe two options....one for the gt and one for the rtr, since the plus has the gt chassis i am thinking that would be the correct one for my truck, right?

baneonrt
10-19-2002, 01:54 PM
Thanks for the compliment Widget. I originally wanted to do a silver/black/blue theme but decided on solid blue for a basher body.

Has anybody else had a hard time getting the Crowd Pleazer body to fit? I had to extend the front body posts over 1/4" to get the front shock towers to stop rubbing and to make the bottom of the body parallel with the chassis.

jayskiia, yes, you want any body that will fit the Team and Factory Team GT's.

Steve

rocknbil
10-19-2002, 03:20 PM
Originally posted by xxxkat
Hey rocknbill whats up,used to talk to you on a different site.........

Oh you mean that one with three letters where the posters care more about talking dirty than RC? That's not why I go to an RC site . . . :) LOL

....what servos should I run on this truck,I HAD used hitechs but way to many problems,I bought the truck used no motor,I just bought a mugen mt12(nova).

Well I suggest FAST on the throttle and if you can afford it STRONG, and STRONG on the steering and if you can afford it FAST.

Fast on the throttle because if you're at full throttle and want to hit the brakes, it has to travel all the way from the full throttle to the brake position. When I roll my GT with my foot and a .33 speed servo, it traveled 6 feet before stopping. Imagine how far it would go on the track! If you can afford a strong one, that will help with the throttle return spring.

Strong on the steering because there's an immense amount of pressure on the tires as stated in my previous post, you need a strong servo to hold them in position. Fast will make it more expensive.

The best servo's I've found for BOTH are the Futaba S9402's, they are all metal gears, ball bearings, and boasts a 111 oz/in strength and .11 sec speed at 60º. Unfortunately they are expensive as hell. For the throttle get at LEAST a 50 oz/in servo with a transit speed under .15, for the steering at least 70 oz/in or greater, speed ??? Whatever you can afford.


baneonrt
Here is what I found on the Associated site: ...


How the heck did you find that, I looked all over for it! COOL!


Originally posted by Jamie
The Dynamite red seals can't take the heat. ...

Well he's right that AE's are of higher quality, but I will say I've been using the cheapo Dynamites without a problem, if you're having an overheating prob I'd find out why . . . most common is getting a little brake at idle or forward . .


Originally posted by ross
The bearings in my rear hubs have just about had it, and I want to replace them...Which bearings do you reccomend that will work well in the rear hubs but have more durable seals than the AE ones?

I'm going with cheap on this one because other bearings are so expensive! What's going to be worse: a cheap bearing that you replace often or an expensive one you still need to replace? I got 10 Dynamites for $27 or so on Tower Hobbies . . the AE ones were way more expensive.

Also not mentioned is if you're on 1/4" or 3/16" axles, I have heard a great deal of talk about the 3/16" axles being better because the bearing is heavier and can handle more abuse. Both my GT's have 1/4" axles and I don't have too much trouble with wheel bearings, but run MIP CVD's and am a little careful to make sure the tires are balanced and there's no major wobble. Look into that; your bearings are going out for a reason.

dog8spam
10-19-2002, 08:44 PM
bil, I use the Duratrax bearings and 1/4 axles, to me Assocated can't make bearings so good that would make it worth to chip in another $60.
Viking
I am painting a body now. I made some sweet decals on this vinyl machine the tech lab at my school had. If your still young enough ask around. There are CDs full of fonts and graphics witch include flames and scallops. Also look into Allclad II chrome. That stuff is amazing.

Widget
10-20-2002, 01:02 AM
Baneort,

Regarding your crowd pleazr body not fitting; did you get the GT? After seeing your body, I went out and had to have one too (fk, that sounded quite ***) And sure enough I bought me a crowd pleazr, I did not have the guts to start cutt'n though. Too much goin on today. But should I take it back? I do not want to get it done just to find out that it doesn't fit.

Widge

Widget
10-20-2002, 01:05 AM
I guess you can't say GAAAAAY here.

xxxkat
10-20-2002, 02:14 AM
Hey rocknbill thats why Im not on that site anymore.How much money on the 9402s ?

Wallis Racing
10-20-2002, 07:46 AM
Hey yall,
was out BMX track bashing with my RB X12 powered FTGT today, i was with Juls(from 'Juls creations' @ rcmovies.com) and he has a X12 FTGT same as mine. well, we hit the jumps and we were getting sick air! he was having some glitching probs, so while he was trying to sort it out, i went and started to do some wicked jumps, i found a jump that had a wicked kicker and just floored it over the jump, but the rear end kicked over and i landed upside down, but i got wicked air, and i yelled over to juls, "hey, watch this"! then i hit the jump again flat out and jammed the brakes on in the air, and it did a perfect front flip, LOL so then he ran and got the camera and i tried to do it like 10 time on cam, but it didnt work ever again, LOL just my luck:rolleyes:
Then, after this he got his GT sorted out and he started doing backflips, LOL , and it was doing them soo easy. the jumps were like 2+ meters high, so we were launching about 4m high and just hammereing the gas in the air. i was filming him and he did backflip after backflip :rolleyes:
well eventually he stoped so i grabed my GT (which i was haveing heaps of probs with after crashing 10 atempted front flips, LOL) and i ran over to the backflip jump and just floored it over the jump and it did the sweetest, most perfect backflip youve ever seen, and i looked over to juls, and the camera was pointed at the ground cause he wasnt ready yet!!! AARRRGGGG! he missed my wicked backflip, LOL so i tried it again, and it kinda didnt work, it did a 180 1/2 flip and landed right on the rear tower upside down and stalled on impact, but no damage.

but by now my car was like falling to bits, LOL where the rear tranny brace screws into the tranny, it kinda cracked and riped the casing apart, LOL and my rear bulk head is cracked and my engine is running cr*p, so i gave up and just kept fliming juls. he did some more backflips and over did one, so he did a 1 and 1/2 flip, and then he got it into his head that he could do a double back flip:rolleyes: so he went flat out over the jump and did, 1/2....1...1 1/2....1 3/4....BANG! landed right on the right rear wheel and brake an arm and bent his CVD about 90* LOL, game over, everyone go home, LOL.

but it was a good day, we spant about 4 hours at the track, and got 15min of footage, LOL most of which is some of the best crashes youve ever seen, LOL

well, i have some major wrenching to do to get my GT up to race standards for next weekend:( so i better go start now, LOL

anyways,
Mad Man

ritchies rc10gt
10-20-2002, 09:42 AM
Originally posted by Wallis Racing


but by now my car was like falling to bits, LOL where the rear tranny brace screws into the tranny, it kinda cracked and riped the casing apart, LOL and my rear bulk head is cracked and my engine is running cr*p

anyways,
Mad Man



what tranny brace and rear bulkhead are you running?i was always breaking the the rear bulkhead,ripping the tranny case apart.i put the trinity tranny brace on mine and stopped ripping the case apart but still broke the bulkhead,i put the RPM bulkhead on it and stopped all of those problems.i know it fixed the problems cuz i got run over by a monster pirate and didnt break anything.

ritchies rc10gt
10-20-2002, 09:54 AM
im am currently running an OS .15 CV HYPER with slide carb.i like the engine but now i need something faster and will last longer between rebuilds.i need an engine that will be able to handle being geared fairly high (62t spur,18t CB)but still have enough lowend power to get around corners and back up to speed fairly quick without overheating.the high gearing isnt nessacery but would be great since i like to be geared high for the straights.price really isnt an issue as long as its under $500.00(my womans already mad cuz im gonna spend $1000.00 on a monster pirate and some hop ups for it :D )i also want to be able to bash around with it.


also,i am thinking about buying another rc10gt but i want the kit so i can built it,i need something to do this winter at night.wich kit is better value?

Insane Rival
10-20-2002, 10:01 AM
at xmas, what would be a good engine to buy? i need somethin not too hard to tune, but fast...no racing, just bashing

atm92484_3
10-20-2002, 12:21 PM
I'd consider a 15 CV-R. It will over-power a GT, but you won't be screwing around trying to tune it.

Ritchies, go for the FT (I think this is what you're asking) since it has the titanium turnbuckles, graphite shock towers, and uno shock shafts (thats atleast another $100 to put those onto the car at a later date).

ritchies rc10gt
10-20-2002, 01:44 PM
ok thanx ATM.

the 15 cvr is ABC right?i like the cv but i dont like ABN construction

atm92484_3
10-20-2002, 02:49 PM
Yup ABC.

DirtKite
10-21-2002, 12:48 AM
Is anyone else using a the MIP onboard Temp prob? I'm curious about what a safe temp range is on the .15 AE engine with one of these. Currently i have mine positioned on the bottom fin slot of the stock AE head with the probe 90 degrees to the right (when looking from the rear of the truck) of the exhaust port.
So far the highest temp I've seen is around 205 F.
Thnx

Sorchy10GT
10-21-2002, 01:45 AM
the temp probe is not that accurate my frend has a temp gun and a temp probe and the temp probe read 20 degres cooler than the gun . to save money radeo shack sells a temp gun for about 50 bucks and is gust as accurate as the high $ temp guns that are $80 and way up from there

Sorchy10GT
10-21-2002, 03:14 AM
I know some people are runing the the O'Donnel head on a cv .12 or.15 how much beter/cooler did it run.:confused:

xxxkat
10-21-2002, 09:03 AM
I thought it made a big enough difference to be worth the money,I also use a Paris turbo pipe(ring).I did notice a drop in temp.(about 30 deg.)with just the change of the head,I did not change any carb. settings to see if the claim of temp.reduction is true.In my case,on my motor,with my settings,it was true. O'Donnell is a class act. ;) :)

low_ridah10
10-21-2002, 04:11 PM
Originally posted by rocknbil


"Very important: without starting up the truck, turn on the radio and check to see that the wheels spin free. Are you getting a little brake at idle? This could do it. If you have brake at idle you've likely got the idle set high to compensate, causing the clutch to engage, causing the bell to heat . . . "


So are you saying that at idle my car shouldnt move forward?? Because when i start my car it goes forward at idle speed.


"MIP clutch or stock teflon shoes? I would imagine the teflon shoes would run a little cooler if the above is the case . . ."


Im Pretty sure its the stock clutch. I bought the car used and dont know much about it.

coolracer47
10-21-2002, 04:23 PM
I have a Question. When my gt is sitting at idle is it supposed to move forward? Will it hurt the clutch? Also would a O.S. .15 cv-r be a good choice for a engine to drop in. Thanks

jcnmt
10-21-2002, 04:44 PM
hey cool racer where do you race at?

dog8spam
10-21-2002, 05:21 PM
Coasting at idle wont hurt your clutch cool, I let my car coast at idle and barely tap the brakes to keep it still. For starting I just twist the steering trim.

dog8spam
10-21-2002, 05:26 PM
Almost forgot.
If I was buying an engine I would take the OS .12 TR w-10M. Its race legal and rear exhaust. You can find headers that will work for the GT, Billy Easton uses rear exhaust in a GT.
If your stuck on .15 see if there is a .15 in the TR line, they are supposed to be higher quality.

coolracer47
10-21-2002, 05:44 PM
They dont make a .15 tr. only .12tr. what should i get then a .15 cv-r or .12 tr? Has anybody ran both yet? thanks for the help

popee
10-21-2002, 05:46 PM
I need an after market head for a O.S .15CV, which is the best? I dont think I can get hold of O'Donnell was they are out of my price range, (Around £50) Thats $70. GPM Racing do them for the O.S but They are currently hard to get as GPM are being taken over. Any other heads I can use?

baneonrt
10-21-2002, 08:00 PM
Originally posted by Widget
Baneort,

Regarding your crowd pleazr body not fitting; did you get the GT? After seeing your body, I went out and had to have one too (fk, that sounded quite ***) And sure enough I bought me a crowd pleazr, I did not have the guts to start cutt'n though. Too much goin on today. But should I take it back? I do not want to get it done just to find out that it doesn't fit.

Widge

Yeah, I got the one specifically for the GT. However it was sitting at my LHS so I don't know if it's an early revision and they've corrected them or not. I ended up using the post extenders in an HPI kit just had to modify them a bit to work. The HPI part number is 85032 so you can search for it on Tower or wherever.

Originally posted by rocknbil
How the heck did you find that, I looked all over for it! COOL!

Associated's site is one of those that you click on links like mad and sometimes you get lucky. Go to Catalogs, then the HTM link under RC10GT & RTR truck. From there is a link on the left side to Drawings. I think it helps that I wasn't even looking for the exploded view when I found that :)

Steve

rocknbil
10-21-2002, 10:52 PM
Originally posted by low_ridah10
So are you saying that at idle my car shouldnt move forward?? Because when i start my car it goes forward at idle speed.


No it's okay if it coasts a little. It's even ok to put the brakes on to hold it there. What's NOT ok is if you have a little brake applied all the time.

If your brakes are incorrectly set, and they are "on" a little, they never go off. Not even when you rev it up hard. This adds more resistance on the clutch bell and hence the heat.
And here's something else: Get a manual and make sure you're putting the clutch shoes in the right way, don't feel dumb if you get them in backwards, it's easy to do, but if you do the clutch will sure enough be engaged full all the time!

rocknbil
10-21-2002, 11:00 PM
Originally posted by xxxkat
How much money on the 9402s ?

Do you really want to know? :) More than I wanted to spend!

S9405: 79 oz/in .11 sec $85
http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXBXA8&P=0

S9402 88 oz/in .13 sec 4.8 volts 111 oz/in .11 sec 6 Volts
http://www2.towerhobbies.com/cgi-bin/wti0001p.pgm?Q=1&I=LXH305&P=0


OR . . take your chances on ebay . . . sometimes good, sometimes not . . . I think I got one for $46 and one for $56, they were both like new.

xxxkat
10-22-2002, 12:56 AM
Thanks for the info bill,Now on clutches stock or mip ?On motors do you run side or rear port? I just bought a mugen seiki mt12,I am looking foward to getting this GT together by Dec.(its a money problem,or I think its a lack of.)I just want to get the stuff that will hold up for racing.I dont care if I win,I just want to make the 15min. A-main.(I could make the A main with my losi,it would not last till the end of the race.)Thanks for all the help.

ritchies rc10gt
10-22-2002, 09:05 AM
xxxkat,go for the MIP clutch.its much better than the stock clutch plus you get 4 settings to try so that you can find the setting that works best for you.you can run side or rear exhaust engines,but to run a rear exhaust you will need the right header for it,i think the XXXNT has the header you need to run rear exhaust,but im not sure.or you may be able to use the rear exhaust header for the NTC3,somebody that knows for sure will be around soon.to help lower the possibility of stripping a spur during a race,use the RRP machined plastic spur gears,i had the same gear on mine for about 4 months untill the motor mount screws came loose,make sure you use threadlock on the motor mount screws,header screws and clutch nut.run 2 fuel filters,1 on the pressure line and 1 on the line going to the carb.to help lower the chance of breaking an inline steering block if you hit the pipes or something,boil them for 10 minutes.the list of stuff to make the truck last through the races is about 2 days long,but you will find out when you start running it.most of all,and most important,have fun and enjoy the truck!

JCason
10-22-2002, 11:22 AM
Can anyone give me the hp rating on the stock AE .15 engine on the gt rtr? I am looking to upgrade the motor but I want to know how much it has since that is what I have now.

rocknbil
10-22-2002, 12:02 PM
Originally posted by xxxkat
Thanks for the info bill,Now on clutches stock or mip ?On motors do you run side or rear port? I just bought a mugen seiki mt12,I am looking foward to getting this GT together by Dec.(its a money problem,or I think its a lack of.).....


Well richie's got some ideas. Personally I don't think any of those things are going to win or lose the race for you, it gets down to just good driving.

My wife's got the MIP in her GT, I left mine stock, I have a brand new MIP flywheel and clutch sitting in the box but don't see as much of a difference so have not been motivated to install it. Maybe there is. In fact it had an MIP setup in it when I got it and I took it all out. If money's an issue for you, I don't think it's going to make that much of a difference for you.

As for exhaust . . . I have checked out the rear exhausts and am undecided. You have to get a new rear tower, header . . . also if money's an issue, ditto. You'll have a lot more to choose from with the stock side exhausts, and there's lots of tuned pipes to choose from.

To last till the end of the race? Well make sure everything's nice and tight and change it out if there's any question! :)

BinaryAvoidance
10-22-2002, 12:57 PM
I got my gt up and running the other day. Its so fast!!

chachi
10-22-2002, 06:38 PM
if you run a rear exhaust engine, can you just switch the header to have side exhaust? or do you need to run the exhaust out the rear of the truck?

it seems to me that the enigne mount configuration on the gt would make it possible to have a rear exhaust engine, but maintain the side exhaust pipe location. this would make it unecessary to get new shock towers, etc.

atm92484_3
10-22-2002, 08:04 PM
Chachi, you are correct. To use a rear exhaust engine, you'll just need the rear exhaust header. That will allow you to keep the pipe where it is and not have to reconfigure any parts of the truck.

xxxkat
10-22-2002, 09:13 PM
Thanks for the Info on the GT,I could have had my GT together by now but I wanted to do it "right",Digital servos,Novak xxtra receiver,Rear port motor,Progressive suspension,Titanium turnbuckles,hinge-pins,and some parts from Hardcore,and Trinity.Out of all the rear manifolds the Losi fits the best.I KNOW that the way Im building MY GT is not going to be any faster around a track,But I just wanted to build one this way,On my losi the graphite is very brittle,I had problems with the shock towers breaking landing off a jump,other things like getting T-boned in a turn(by GTs) and breaking A-arms,I would watch GTs doing & having the same things happen to them AND NOT BREAKING.As far as the cash flow goes,I have other RC cars I race,So I have to get parts here & their.I wanted to build a GT that when I look at it,I go WOW thats trick. To me RC racing is all about "the fun factor"I dont get mad if I get hacked,or if the turn marshal does not get my car fast enough,Relax have fun.:D :p

rocknbil
10-22-2002, 10:55 PM
Yeah, plus they look so sweet with all that hop-up stuff on there . . . LOL

BinaryAvoidance
10-22-2002, 11:03 PM
Aluminum Chassis, Aluminum motor mounts, aluminum rods (unsure proper name there up front), Titanium turnbuckles, Hitec metal gear servos, xxxl fm receiver, graphite schock towers, NovaRossi .12 engine, Tuned pipe.

Thats my gt :)

It goes pretty fast :D

xxxkat
10-23-2002, 12:40 AM
The GT Im building is very close to yours(binary)I am trying the Hardcore Titanium shock towers & nose tube mounts,and their hyper brake disc.I was going to use the titanium skid plates but I race and sometimes us racers hit things,the stock bumpers give a little,and I think thats a good thing.Have you changed any gears in the tranny?(metal ones)

BinaryAvoidance
10-23-2002, 10:17 AM
Not really, im planning on getting metal spur gears though. And im changing the one gear to a 25t, im new to the hobby cant think of the name :rolleyes: Its the one the starter box spins....

rocknbil
10-23-2002, 12:35 PM
Originally posted by BinaryAvoidance
Not really, im planning on getting metal spur gears though. And im changing the one gear to a 25t, im new to the hobby cant think of the name .....

Binary that's a pinion gear/clutch bell. :)

I would strongly advice against the metal spur. Here's why: the plastic spurs cost you about four bucks. Lets say something goes wrong, it doesn't matter what - the engine slips out of position on a really hard jump, a pebble gets in there, whatever - you strip your spur. Now if something goes wrong with a metal spur, you not only damage the spur, you also can damage the clutchbell, so now you have TWO expensive parts to replace.

They make it out of plastic to make it cheaper for you to stay running.

BTW a 25 tooth pinion? Yee gads! :) What spur will you run? I'd wonder what that will do to your low-end, and is it's going to put any stress on the engine at lower speeds . . guess you could dial it out with clutch and torque control . . .

BinaryAvoidance
10-23-2002, 12:51 PM
OOPS! I meant 15t. sorry.

Good point. Ill stick with the plastic spur.

Thanks for the advice.

atm92484_3
10-23-2002, 10:00 PM
Try the machined plastic spur gears by Robinson Racing.

JCason
10-23-2002, 11:41 PM
Can someone please tell me the hp rating on the stock .15 motor on the RC10GT RTR? Also, what is the most powerful motor to buy to put in it place with little modifying.

rocknbil
10-24-2002, 12:25 PM
Oddly enough, the "tech sheets" on the AE site don't say.

I'm going to go out on a limb here, if you're looking for a new motor I'd look in this order and in the range of your budget:

Nova Rossi (oh man check out this sweetest engine thread:
http://www.radiocontrolzone.com/forums/showthread.php?s=&threadid=100448 )

I have heard the WASP engines should fit in here next (no personal experience.)

Picco - I have a used RC .12 speed and the compression is not all that great on this engine and it is TOTALLY ballistic, I shudder to think what a new one would do.

OS CV series - OS has been building engines forever, you just cannot lose with an OS engine.

As for .12 or .15, there is a certain point at which you not only cannot use any more power, it puts undue stress on the drive train. My opinion - .12 engines provide all the power a GT needs.

speedydave
10-24-2002, 05:12 PM
Hey guys...I think I asked this before, but it's getting close to when my track's gonna go indoor again, and I wanna have my GT all set up for some butt kickin'. I've got an OS .12 CV(S) with an O'Donnell head right now, and it's really fast for a CV, but the CVR's and Picco's and RB's and MT12's are definitely faster on the straight, and when we go to our arena track(not indoor, just covered...I know I said indoor before...but it's got no walls! :p ), they'll be faster everywhere.

OK, so here's my question. I love OS engines, and I want to get another...but, I don't really know if I want a .12 CVR(S), or the .12 TR(S). Have any of you used a TR in a GT? I know both are high output engines, and I'm aware of the pros and cons of putting a high output engine in my truck. I'd just like to know what the major differences in power these two engines have, and what kinds of tracks you all would recommend them for. Thanks!

ross
10-24-2002, 06:30 PM
Originally posted by speedydave
Hey guys...I think I asked this before, but it's getting close to when my track's gonna go indoor again, and I wanna have my GT all set up for some butt kickin'. I've got an OS .12 CV(S) with an O'Donnell head right now, and it's really fast for a CV, but the CVR's and Picco's and RB's and MT12's are definitely faster on the straight, and when we go to our arena track(not indoor, just covered...I know I said indoor before...but it's got no walls! :p ), they'll be faster everywhere.

OK, so here's my question. I love OS engines, and I want to get another...but, I don't really know if I want a .12 CVR(S), or the .12 TR(S). Have any of you used a TR in a GT? I know both are high output engines, and I'm aware of the pros and cons of putting a high output engine in my truck. I'd just like to know what the major differences in power these two engines have, and what kinds of tracks you all would recommend them for. Thanks!


The only really major difference between the 2 engines is that the TR is rear exhaust, so you will need a new manifold, but they are fairly cheap and worth it. Im not sure how the power bands compare because I dont own both, although my CVR was shipped from tower yesterday :D.


IMO, you wont go wrong with either of the engines.

Tstalion79
10-24-2002, 06:37 PM
I wouldnt get an OS. I would try the orion wasp engines, or a sirio. They absolutely rip.

ross
10-24-2002, 06:45 PM
Originally posted by Tstalion79
I wouldnt get an OS. I would try the orion wasp engines, or a sirio. They absolutely rip.

Why do you think he shouldn't get a OS?

Tstalion79
10-24-2002, 06:53 PM
Well, I have owned 2 .12 CV-R's and 1 .15 CV-R. They are very reliable and consistent engines, but they just dont have enough power in my oppinion. They have pretty good top end, but they dont have nearly the bottom and especially mid range punch of the sirio's and wasps. I am not saying that they are bad engines though! Dont get me wrong, they are awesome; they are very smooth and consistent.

baneonrt
10-24-2002, 07:52 PM
Are there any sites with actual dyno plots from various engines? I'm looking for a .12 rear exhaust engine of some sort and it would be nice to be able to compare. Any recommendations for an engine that meets those two requirements? I don't care about having tons of peak power. I want an engine that's going to be as tame as possible but still have good punch.

Steve

Tstalion79
10-24-2002, 08:09 PM
The CVR makes just under 1 horsepower according to RCCA, the sirio makes 1.6 (not 1.8 as sirio claims), and the wasp makes about 1.5. The MT-12's, RB's and Picco engines are just like the wasp.

baneonrt
10-24-2002, 08:37 PM
I'm not concerned about peak power numbers. They are all but useless except to sell cars/engines. I'm more concerned about where an engine makes power. This can be shown with a dyno plot.

Steve

rocknbil
10-24-2002, 08:59 PM
Originally posted by Tstalion79
Well, I have owned 2 .12 CV-R's .....Dont get me wrong, they are awesome; they are very smooth and consistent.

I've always run OS engines, in my planes long ago and in my cars, but I'll tell you I put a used Picco in and WOO HOO there is a very big difference. Cost, however, and quality, are very important here. The OS engines provide the best quality for the least money all around, if it were a choice between a dynamite for $79 and an OS for $89 I'd spring for the OS (dejá vú, I think we've been here before. :) )

dog8spam
10-24-2002, 09:56 PM
I would stay with the OS they are higher qulity and last longer. If you are sponsered and get free engines how long they last is no problem. To us normal racers, it is.

Tstalion79
10-24-2002, 10:14 PM
OS engines DEFINATELY do NOT last very long relative to mugens, rb's, novarossi's, picco's, and orion's. They have very weak sleeves in fact. They wear very linearly which is good, but they lose their "like new" compression withing a gallon of running. Take a look at rossi engines. My freind has one and has put 7 gallons through it and still cant turn over the flywheel.

atm92484_3
10-24-2002, 10:34 PM
TS, whoever has been running O.S. engines that aren't tight after a gallon isn't treating theirs right. I have a 12 CV-R and a 12 TR sitting in my garage, both with 3-4 gallons of gas through them and both are EXTREMELY difficult to turn over when they are cold. The CV series with ABN sleeves are a different story, but all of O.S.'s ABC engines last if treated properly.

My RZ is another story...we'll just see what happens with it (I'll be sure to take another tank or two on break-in next sleeve ;)).

xxxkat
10-25-2002, 12:58 AM
OS made better than a Nova Rossi?I have had both and I thought that the Nova Rossi held up better,But my OS was still a good motor.If you like OS,run the .12tr turbo its way way fast.:D

speedydave
10-25-2002, 01:04 AM
Uhh, ATM, since you own both the CVR and TR, can you answer my question? It seems nobody else has... :rolleyes:

TS, you DO know that Picco makes the Wasps, and NovaRossi makes the MT12 for Mugen, and I'm pretty sure NovaRossi makes at least some of the parts for RB's...? I own an RB WS7 and love it, but for my truck, I don't need all the bottom end in the world, I'm actually looking for a little bit more top end, and some more bottom end, but mainly more top end. Yeah, the NovaRossi based engines and Picco based engines may be faster, but I didn't ask about those, I asked about the O.S. engines. Oh, and by the way, the only O.S.'s I know that have relatively short piston/sleeve lives are the V-01b's, which last 5-6 gallons. I've heard of(and seen) CV's last between 4 and 9 gallons, usually in the 6 gallon range, and CVR's lasting about 5-9. A lot of an engine's life span depends on what fuel you use, how you run the engine, and how you tune the engine. Also, the Rossi might make 1.6 hp or whatever you said(who really cares how much horsepower there is?... :rolleyes: ), but I'm almost positive that engine is illegal in almost all(if not all) forms of sanctioned racing. The MT12 made something like 1.15 hp on RCCA's dyno, and is claimed 1.35-ish(I'm not 100% positive, but I can go look it up if you want exact numbers), and I doubt the wasps make 1.5 either(probably more like 1.2). RB's engines are more like the MT12. The only application I think you'd really need that much power out of a .12 engine is in a nitro touring car. I'm not saying any of those engines suck, but in my opinion, if you're going to argue a point by arguing with numbers, get the numbers right. Also, I'm sure the OS .12 TR makes at least one real hp, or somewhere around it. The CVR has a claimed 1 hp, and dynos at .88 bhp on RCCA's dyno, where the .12 CV(the engine I run) dynos where? Somewhere around .45-.5, I believe...Just a slight difference there... :p Please don't take offense to anything I've just said, I'm just stating my opinion and the facts as I know them.

xxxkat, uhh....turbo is for onroad :D

xxxkat
10-25-2002, 09:19 AM
Naw, Any motor is for any type of RC car,I like a slide carb better than a rotary anyway,As far as top end power goes you can tune with your pipe & header for more top end or less ,it is still a 2 stroke motor and it does respond to differences in back pressure.On a turbo its the plug,thats it,more choices on the heat ranges & seals better.

wannabee
10-25-2002, 10:36 AM
I was at an invitational this last weekend and all I can say is the os tr powered trucks were incridably fast. I'm leaning toward the tr with the fanton 2 chamber pipe. I haven't figured out which header will work without rubbing the body any tips here is appreciated. I would also like to use a slide carb. How are you guys doing this? Anyone have pics?

baneonrt
10-25-2002, 12:35 PM
Wannabee, I've seen the Mugen MST-1 header listed for about $18. Losi also came out with a new rear exhaust header that's supposed to stick out less also.

http://www.teamlosi.com/newprod/2002prods/Rear_header.htm

I don't remember where I saw the Mugen header. I believe it was from a link on the Mugen USA site.

Steve

rc10gtroller
10-25-2002, 12:42 PM
i recently sripped out one of my gears in my differentials and now i have to by a whole transmission cuz everything is kinda messed up but is there any really good trans for my rc10gt rtr besides the stock one??

wannabee
10-25-2002, 01:17 PM
baneonrt-Very cool, thanks!!!

rocknbil
10-25-2002, 01:43 PM
Originally posted by rc10gtroller
i recently sripped out one of my gears in my differentials and now i have to by a whole transmission cuz everything is kinda messed up but is there any really good trans for my rc10gt rtr besides the stock one??

Why a whole tranny? Just swap out the gears, rings, and balls?

RC, the AE transmission design has not changed in over ten years and for a very good reason: it is a superior design. The original electric stealth tranny is the same design used in the GT with a smaller diff gear and case.

Part of it's design is that under extrordinary stress, that is, outside the realm of expected usage, a less expensive part will break or strip, avoiding breakage of more expensive parts. A perfect example is the plastic spur post a few threads back. Another example is the plastic gears in the diff.

If you stripped a gear inside the diff there is something definately wrong with your setup. The GT is designed to endure an extreme amount of abuse, but some things that you think wouldn't be a problem are extremely stressful on it, such as:

My first GT I bought used and the previous owner had the slipper clutch locked down and the diff had loosened up a little. Not a lot, a little. The ball bearings are not supposed to slip against the diff rings, they are supposed to roll on them, causing the differential action (one wheel turns in the opposite direction when you turn the other.) In this condition, when you hammer the throttle from a dead stop, ALL the power goes to the diff (no slipper, remember) and the diff balls slip against the washers. Causing friction. Causing heat. Causing the holes the BB's go into in the diff gear to begin to melt so the balls no longer turned. Now they won't roll even if you want them to. If I'd have continued running it like that, the diff gear would have continued heating up, gotten soft, and stripped.

Rule one: tight diff, not so tight it makes noise when you turn a wheel but so that if you hold the spur and one wheel tightly, you cannot turn the other wheel. Replace the rings and balls when it sounds "gritty" when you spin it. When properly set a Stealth tranny will not slip at all and will spin as smooth as a baby's butt.

Even with a tight diff, people abuse the transmission by hammering down the slipper clutch (I don't know what the freaking big deal is about wheelies anyway, you can't steer! :) ) Even a bad .12 engine puts an immense amount of pressure on the diff from a dead stop. Always set your slipper clutch so it slips just a little when you hammer the throttle from a dead stop, it should fully lock within three to six feet. You can tell if it's doing this by the pitch of the engine and by how much the wheels spin. Besides, this will help you drive better anyway by reducing spin out in corners. :)

If you REALLY want to, you can get aluminum or metal gears inside your tranny, or even a full aluminum case, but the ones I've seen the screws get locked up in the case. And remember what I said about one part being designed to break? If somethng goes wrong in an all-metal gear tranny, you now have many more expensive parts to replace.

Stick with the Stealth, it's an awesome tranny.

atm92484_3
10-25-2002, 02:46 PM
Originally posted by speedydave
K, so here's my question. I love OS engines, and I want to get another...but, I don't really know if I want a .12 CVR(S), or the .12 TR(S). Have any of you used a TR in a GT? I know both are high output engines, and I'm aware of the pros and cons of putting a high output engine in my truck. I'd just like to know what the major differences in power these two engines have, and what kinds of tracks you all would recommend them for. Thanks!

Give the 12 TR a shot if you feel like spending a little extra and having to come up with a new manifold. I'm considering putting one in my GT if/when the CV-R goes. I haven't had the CV-R or TR in the same cars to compare, but it seems like the TR has more power all over the powerband.

Roller, take bill's advice. I have had my GT for 3 years and its tranny just had its first rebuild (preventive maintaince, not because the gears went).

dawudmus
10-25-2002, 03:40 PM
can someone help me..
what is the best truck to get: THe associated RO10GT or
the triple X nt (picco or non picco) or the new mugen

atm92484_3
10-25-2002, 06:41 PM
Which truck can you get parts for the easiest?

Tstalion79
10-25-2002, 06:47 PM
They drive very similarly. The GT just feels faster and snappier out of corners, but isnt as stable as the xxx-nt. They are all awesome cars though. The gt is also the more durable of the two. I dont know much about the mugen, but I wouldnt get it just because its brand new and still might have the "first run" problems like lots of cars go through.

toddzilla
10-27-2002, 12:53 AM
finally got around to rebuilding my diff in my gt, i noticed that all the tranny gears are metal.. is this normal? i got it off ebay and don't know the history of the truck other than its old, but has alot of hop ups on it.. i remember stealth trannies having nylon gears with the exception of the diff... anyone?

atm92484_3
10-27-2002, 01:07 AM
Stock on the Stealth trannies is a metal top-shaft, and plastic (for lack of a better term) idler and diff gears. The metal gears were added by the previous owner.

rocknbil
10-27-2002, 06:32 AM
Originally posted by toddzilla
finally got around to rebuilding my diff in my gt, i noticed that all the tranny gears are metal.. is this normal?

Gee I donno Todd, maybe you should mail them to me and let me check it out for you. :-)

Is the Diff gear metal too? Does it look like aluminum, steel, or titanium?

Aluminum will have black oxidizing in areas of wear, like on the gear teeth, steel or titanium won't (just dirt and grease,) and titanium will feel light, when you hold it in your hand and feel it's weight it wil look like it should be heavier.

Originally posted by dawudmus
can someone help me..
what is the best truck to get: THe associated RO10GT or
the triple X nt (picco or non picco) or the new mugen

You're in the AE GT forum, we're all going to tell you . . .



GT's ROOL!!! :)

xxxkat
10-27-2002, 08:32 AM
On the mugen being a new motor,its not,They are nova rossi motors made for mugen seki,And as far as I know nova rossi has had no problems with their rear port motors.

sosidge
10-27-2002, 08:42 AM
Methinks he was talking about the Mugen truck...

dog8spam
10-27-2002, 12:53 PM
What he's talking about is the little cinks, Associated is very good at fixing those. They replaced the blacktub because of chassis flex, made new fuel tanks so fuel doesn't pour out the pipe, the list goes on but thats what makes the GT such a good car. Every car has problems, at one point you got to sell the car and roll with the punches. Associated is the oldest around and has the thing pretty much bullet proof.
Mugen however is new at 1/10 stadium, and will have to see what problems come up.

xxxkat
10-27-2002, 01:51 PM
Ok my bad

hoytshooter
10-27-2002, 08:56 PM
I have been reading posts on this forum for quite some time now. People here have some great information. Here is a problem I am looking for a solution to......I keep popping ball ends off from my steering blocks on my GT. I went to captured ball ends for a race today and broke a steering block. I have read somewhere that I can modify T3 blocks by RPM to fit. Will there be a geometry problem here or does anyone have any other sugestions?

Thanks

FlyinRazorback
10-28-2002, 10:34 AM
Hoytshooter, I was going to ask the same thing. I am using the standard ball ends with RPM cups. Seems like I had less trouble when I had the factory cups on there. How do you capture the ball ends?

hoytshooter
10-28-2002, 12:23 PM
I seem to have had less trouble with the factory ball ends too. I might try them again. Captured ball ends are like what is on the outer ends of the rear camber links or the bottom ends of the shocks.

rocknbil
10-28-2002, 12:39 PM
There's definately no perfect solution here. As hoytshooter found out, with captured ball ends you wind up breaking something more vital. I just keep the ball ends as new and un-stretched as possible, although I will say the H.D. RPM ball ends to hold a little better, but I have still had those pop off on occasion.

Originally posted by sosidge
Methinks he was talking about the Mugen truck...

GT's STILL rool. :)

ritchies rc10gt
10-28-2002, 08:11 PM
Originally posted by rocknbil
There's definately no perfect solution here. As hoytshooter found out, with captured ball ends you wind up breaking something more vital. I just keep the ball ends as new and un-stretched as possible, although I will say the H.D. RPM ball ends to hold a little better, but I have still had those pop off on occasion.

try this:boil the steering blocks for 10 minutesand use the RPM ballcups,change the ball cups after 2 race days.ive been doing this all year and never had a problem

xxxkat
10-28-2002, 08:36 PM
As far as the ball cups go,Im with rocknbill,When you hit something hard enough to knock a ball cup off you saved your A arms,blocks,hinge pins etc.Its easy to pop them back on,If they are coming off all the time,replace them.Lunsford makes some heavy duty ballstuds(super duty- 5-40 instead of 4-40) They also make super duty turnbuckles & RPM makes a super duty ballcup that is designed to exactly fit the super duty turnbuckle and ballstud.(sounds like an ad)But they do work very good for nitros.I have been using them and have not had a problem with them poping off.(unless I hit something really hard) :D

low_ridah10
10-28-2002, 11:22 PM
Does anyone know if i get the chassis upgrade kit for my tub chassis GT does it upgrade the 1/4 axles to the new 3/16 axels? Im trying to find some wheels for my truck but Iam planning on getting the chassis upgrade kit and want to buy the right wheels.

baneonrt
10-28-2002, 11:31 PM
The chassis upgrade does not change anything to do with what size axles you run.

I upgraded a tub chassis truck as well so I know.

Steve
http://steve.baneon.org/rc10gt/

low_ridah10
10-28-2002, 11:36 PM
well what do I have to buy to use the 3/16 axels? and also are the front axels the same on the tub chassis as they are on the new chassis? because when I looked on RPM's page they had 1/4" wheels for the rear and they also had the 3/16" wheels for the rear. But they only had on wheel listed for the fronts and it doesnt say what size. Do you know why?

baneonrt
10-28-2002, 11:42 PM
The front wheels are the same. The only thing you would need besides the new axles and wheels to convert to 3/16" axles would be rear hub carrier bearings. I believe you need four 3/16" x 3/8" bearings.

Steve

low_ridah10
10-28-2002, 11:51 PM
so all you need is the new bearings and new axles for the back.? Is there any advantage to the 3/16 compare to the 1/4?

baneonrt
10-29-2002, 12:02 AM
Yes, along with wheels to fit the 3/16" axles that's all you'd need. The advantage of the 3/16" axles is that the bearings they use are more durable. No matter which axle you run the outer diameter of the bearings are the same. So with the larger 1/4" axles you have less room for the balls in the bearing. The 3/16" axle uses a bearing with larger balls so they are more durable.

Steve

low_ridah10
10-29-2002, 12:04 AM
Thanks for the help!

Widget
10-29-2002, 12:36 PM
HELP!! I'm sorry, but I have to say that the articles in Nitro need to be a little longer, and more specific. I read through an article on proper tuning of ones carb, but it left a lot out in my opinion. In tuning my CVR I am having a lot of fluid oozing from the pipe. Is this normal? Second, just how much of the exhaust can one intake before they put them in an assylum? Could someone here give me the "Tuning for dummies" version of properly tuning my carb. Next will be a request for the "Radio Controller for Dummies".

rocknbil
10-29-2002, 01:50 PM
Originally posted by baneonrt
....The advantage of the 3/16" axles is that the bearings they use are more durable.....

Plus you get to use wheels that fit the T3, Losi, etc. without drilling them out. I'm sticking with my 1/4"s though, I have tube of bearings in case I ever blow one. :)

rocknbil
10-29-2002, 02:04 PM
Originally posted by Widget
.....In tuning my CVR I am having a lot of fluid oozing from the pipe. Is this normal?
I'm presuming you mean from your exhaust pipe and yes, it's normal, in fact it means you're running rich enough to keep your engine alive.

just how much of the exhaust can one intake before they put them in an assylum?

It's like smoking pot. One whiff and you are hooked for life and have to undergo a painful withdrawl that will sometimes kill you or, if you're lucky, leave you a vegetable hooked up to a life-support system.

Just kidding, although the castor oil in it is rumored to give you diarrhea.

JUST KIDDING it's harmless ok!!! :)

"I love the smell of nitro in the morning. It smells like . . . . like victory." -Apocalypse Now . . . sorta



Could someone here give me the "Tuning for dummies" version of properly tuning my carb.

The short story:

For an OS engine, close high speed needle valve completely, then open it 2-1/4 turns (factory spec.)

Start, warm it up with at least five laps, and lean out by 1/16 turn until it performs the way you like, stays running at idle, low speed, and full throttle, and passes the spit test (dime0sized drop of water boils off but does not sizzle, enrich it if it sizzles)

For a low speed adjustment, the screw should be sticking out of the barrel by about 1/32." If it tends to die at low speed or idle, turn this 1/16 turn one way or the other until it improves.

MAKE ADJUSTMENTS IN VERY TINY INCREMENTS EITHER WAY.

http://www.osengines.com/faq/product-faq.html#q4

http://www.osengines.com/faq/faq-q661.html

http://www.osengines.com/faq/faq-q654.html

http://www.rccaraction.com/articles/super_tune4.asp

cbordeleau
10-29-2002, 03:03 PM
I just swapped out my old dogbones for the MIP CVD's and had to do the bearing swap at that time. The main reason I did this was the old 1/4" x 3/8" bearing kept on burning up.

I have to check but I think the old setup took 3/16" wheels also. I thought the went from 1/4" down to 3/16". I could be wrong though.

The bearing size listed 3/16" x 3/8" is correct.

dog8spam
10-29-2002, 09:52 PM
I think some dogbones have 3/16.
Does MIP sell 1/4 CVDs?

baneonrt
10-29-2002, 11:19 PM
I know the new RTR Plus comes with a 3/16" dogbone axle setup.

Steve

chachi
10-29-2002, 11:33 PM
another option is to get RPM oversized hub carriers and bearings. they are super beefy. i switched to them after i destroyed a set of 1/4" bearings.

rocknbil
10-30-2002, 12:21 PM
Originally posted by dog8spam
Does MIP sell 1/4 CVDs?

Yes, and the best place to get them is on eBay, look for the RCboyz auctions, they're out of Denver CO. You can get them in the shiny version (SaawwWEEEEET!) or the original black anodized version.

Jamedup
10-30-2002, 10:04 PM
Originally posted by speedydave
.

OK, so here's my question. I love OS engines, and I want to get another...but, I don't really know if I want a .12 CVR(S), or the .12 TR(S). Have any of you used a TR in a GT?

Dave,
I'm new to this thread so forgive me if your question has already been answered. I used to race the CV-R last season and this season I've ran the Mugen MT.12 , but I've seen the OS TR in action and it is better than the CV-R. The power band is smooth and it will turn up like you want. I think the MT has a little more punch on the bottom but mid to top, the TR is like the MT on the track.

I've used the Trinity header with the Trinity pro pipe and it's tucked in nicely beside the chassis. I say used because I flipped the header 180 and piped the exhaust out of the back. I'll follow this thread from now on so if you have any other questions, just ask.

Someone in here was asking about ballcups..... I've always used Losi ballcups on the GT ball studs, they work much better than the RPM cups and last longer than the stock AE cups.

Railman
10-31-2002, 12:19 AM
Dog8spam,
I'd highly recomend using the 3/16" axles for several reasons. One is the availability of 3/16" rims, & hub carriers. If you go the rout of the 1/2" x 1/4" Rpm caries, you can't get them in 1 1/2 degrees, which has become the std for the newer GT's. I have run all 3 setups. Bearing life is about the same for the 3/16"x 3/8" bearing as the 1/4" x 1/2" bearings. Another consideration is the unsprung weight of the 1/2" bearings. They are much heavier than the 3/8 x 3/16. The 1/4" x 3/8" bearings are a total joke. Mine lasted for just a few tanks of hard running. That's when I switched to the Rpm 1/2" bearing hubs & axles. They were ok as far as durability, but if I'd known how good the 3/16 x 3/8" setup was, I would have done that 1st. If I'm not mistaken, Assoc has switched to all 3/16" axles on the latest kits.
Joe

JCason
10-31-2002, 12:21 AM
I have the ae .15 engine in my rc10gt and was wondering if anyone took the restrictor out of the carb and whether is helped, hurrt or did nothing.

Railman
10-31-2002, 12:30 AM
I don't have one, but I've read a lot of posts that claimed a big improvement in performance when removing them. You may need to richen your top end a bit though to keep the temps down.
Joe

DirtKite
10-31-2002, 01:41 AM
JCason I used to have one of these engines and one of the hobby shop guys recommended getting a better head for the engine if i removed the restrictor. He recommended an O'Donnel but i have yet to find an O'donnel head for the .15, maybe he was up selling... who knows.
I recently replaced that engine with a new one (.15) from AE through their engine replacement policy and the new carb that came with that engine doesn't have the restrictor in it. as far as i can tell the only thing that's different with this new engine is they've improved the pullstart mech.
I just finished breaking in this new one and so far i haven't had any time to dial it in yet. :(
hopefully, soon I'll get to play.

baneonrt
10-31-2002, 01:46 AM
If you search on Tower Hobbies for an "Associated Cylinder Head" you will find a few O'Donnel heads for the AE .15 and AE .12 engine. Part number 29061 is for a blue O'Donnell head for the .15 just in case you don't find anything with the keywords I gave above.

Steve

jnegrx
10-31-2002, 01:48 AM
The O'Donell head for the RTR GT is sold as AE. Your LHS should be able to get it. It's for the .15 engine in the GT RTR.

hoytshooter
11-03-2002, 08:29 PM
What nitro % is everyone running in their GT's and why?

dog8spam
11-03-2002, 10:10 PM
I use 10% for thrashing, 20% for racing. 10% makes a difference on engine life, I've ran about 6 gallons through my OS and it still has good compresion. According to AE you need a new piston/
sleeve every 3-5 gallons.

JCason
11-03-2002, 10:14 PM
20% I want power all the time!!

xxxkat
11-04-2002, 01:47 AM
I never noticed that big of a difference on rebuilds from 10% to 20% so I run 30% haul ass & rebuild,Its all for fun anyway.

DustinAdams
11-04-2002, 09:33 AM
Im new to nitro, i bought a used rc10gt for 162 including shipping, its an older modle, but it has bb's in steering and throughout the whole car, 2 nice servos, and an o.s cv .15 engine, it was realy fun for the day that i had it and the day that i ran it, i guess i got carried away and went to fast and broke a few pieces coming down a hill, so i replaced them the next day and later i played with it and it got stuck in full throttle at around 45mph and boom it hit a curb and blew my engine


welp i got a mach .15 on the way, it was used and sent back to losi for a rebuild, and hasnt been broken in, i was wondering if anyone could help me break it in because im very anxious to get this puppy back up and running, thnx

Widget
11-04-2002, 01:54 PM
[QUOTE]Originally posted by rocknbil
I'm presuming you mean from your [B]exhaust pipe and yes, it's normal, in fact it means you're running rich enough to keep your engine alive.

Rockinbill,

That definately put me on the floor, laughing, gasping for breath. Thank you for not suggesting I start taking PENNICILLIN, for my "oozing pipe".

As for the "POT" comment, it took me a hel.l of a lot more than a whiff for me to get hooked.

Thanks for taking the time in giving me the info.

Steve

Widget
11-04-2002, 07:16 PM
I think I should have started with one of those Tyco RC trucks from K-Mart. If you will recall, I have a HiTec Lynx3D, MIP steering kit, on a FT GT. I got it on ebay. It came with many tires. After raking leaves, and setting up a mild jump in my yard, I went bashing. The problem is I can't get up to speed to hit the jump with any gusto. When I give it gas, I start to fish tail, and every bum I hit, causes erratic steering. Is this just a matter of practice, or is there any set up procedures on the radio or truck that will increase control. SHT, watching those punks at the local track taking double jumps without fail, total control throughout the track. This is all making me feel pretty lame. Any suggestions from my new friends here would be most helpful. Would the tires make that big of difference? Are the shocks too stiff? Do I have cerebral palsey setting in?

Widget
11-04-2002, 07:23 PM
And while I am whining...I was running up and down the street, almost full throttle, and I could not tell if it was shifting. Do these trucks have more than one gear? I know, I know, I should know some of the basics. If someone here could refer me to a book on RC10GT's It would probably save y'all from a hundred more idiot questions in the future.

JCason
11-04-2002, 07:52 PM
First, the RC10GT does not have more than 1 gear. Second, as for driving, it just takes practicee. Don't get down on yourself, just practice. as far as changing springs, gears, tires, etc it just depends on each person. I prefer blue springs on the rear and silver on the front but everyone will tell you something different. I do know that is you plan on jumping it I would change your front a-arms, bulkhead, and a few other plastic stock parts to RPM products, they have a gaurantee that they will not break and you will need it while jumping your car. Hope this helps you some.

rocknbil
11-05-2002, 12:55 PM
Originally posted by Widget
I think I should have started with one of those Tyco RC trucks from K-Mart.

You mean you didn't? I did. LOL

When I give it gas, I start to fish tail,.....

One, look at the nut that holds the spur gear in place. See the spring under it? This is called a torque control and is designed to prevent the fishtailing. Normally you learn to press your throttle slowly, allwing it to get up to speed before drawing it to full throttle. This takes a lot of practice and control, as soon as we hear that pop of a nitro engine we want to pull that sucker back like we're shooting a gun.

Until you learn this control, loosen the torque control a little. (without the engine running!) As you loosen it, hold the wheels so they don't turn and spin the spur with your finger. It should be a little hard to turn but should still slip. Start it up, set it down and nail the throttle. Still fishtailing? Loosen it up another 1/8 turn. Do this until when you nail the throttle, the torque control slips for 6 -20 feet MAX before you hear it "lock in" and can tell the full power is going to the wheels. BE CAREFUL you don't get it too loose. If you're at full throttle and it's barely moving, you'll not only heat up the torque control and damage the washer, you'll wear out the engine. The idea is to loosen it just enough to prevent spinouts. And remember this will CHANGE depending on what surface you're on, carry a 1/4" nut driver with you wherever you go. Put it with your small flat blade screwdriver you carry with you to tune up every time you start.

Uhh . . . you do check your tunign every tmie you start, right? :D


Is this just a matter of practice, or is there any set up procedures on the radio or truck that will increase control.

Absolutely, undenyably, yes.

SHT, watching those punks at the local track taking double jumps without fail, total control throughout the track.

Watch them, listen to their engines when they go in and come out of a turn, see how they approach, listen for when they're at full throttle, low, half, learn.

One thing I will say is that to drive well, once the rush of the full speed burn wears off, learn to drive slowly, it's every bit as important as high speed driving, if not more.


....and every bum I hit, causes erratic steering...

I bet that makes for a lot of sore bums. :D


In the steering linkage you'll see a silver knob that adjusts the amount of "give" you have when you hit something, this protects your servo. Tighten this knob down a little, but not too tight, or you may damage the servo. If it's already tight, you may need to get a stronger servo.

rocknbil
11-05-2002, 01:11 PM
Originally posted by DustinAdams
Im new to nitro, i bought a used rc10gt for 162 including shipping, its an older modle, but it has bb's in steering ...got stuck in full throttle at around 45mph and boom it hit a curb and blew my engine......welp i got a mach .15 on the way, it was used and sent back to losi for a rebuild, and hasnt been broken in, i was wondering if anyone could help me break it in.......

Dustin first let me say you now know the potential for damage, read my previous post on learning to drive at low speeds as well. :)

Second, the ball bearing steering can give you some grief, see the post on this page for my opinion on GT steering:

http://www.radiocontrolzone.com/forums/showthread.php?s=&threadid=35995&perpage=25&pagenumber=221#post744653

As for break-in, you can go to http://www.osengines.com and look at their FAQ, it gives some very good advice, but you will hear differing opinions on break-in procedure. The idea is to run at low speed and low stress for at LEAST five tanks. Some people let it idle for a full tank; I tend to side with OS in that you want to "polish" the cylinder and piston at the speeds you intend to use it. Run it very rich and at MAXIMUM 1/4-1/2 throttle for at least two tanks (this is going to be the hardest thing to do, be patient and not get on the stick!) For the third to fifth tank run at 1/2 throttle -3/4 throttle with slight 2 second blurps to full (don't JAM the throttle to full, slowly bring it to full and then back down to half.)

After the fifth tank you can start running a little harder and leaning it out a little.

Guys? Other opinions? This is but one view.

Widget
11-05-2002, 02:35 PM
JCason, when you suggest I get RPM replacement parts, does this mean that the Factory Team upgraded parts are not up to the job? AND, I appreciate the response.

Steve

atm92484_3
11-05-2002, 02:44 PM
He was saying if you're going to jump, upgrade the arms, rear arm mounts and rear bulkhead to RPM since they flex more in a crash. The FT parts are designed for racing (but you won't be replacing any FT parts anyways with these 3 RPM parts) and the stock parts are more than enough for jumping, but by getting RPM, you'll be able to survive harsher crashes without needing repairs.

JCason
11-05-2002, 04:57 PM
Originally posted by atm92484_3
He was saying if you're going to jump, upgrade the arms, rear arm mounts and rear bulkhead to RPM since they flex more in a crash. The FT parts are designed for racing (but you won't be replacing any FT parts anyways with these 3 RPM parts) and the stock parts are more than enough for jumping, but by getting RPM, you'll be able to survive harsher crashes without needing repairs.
That is exactly what I meant when I told you to upgrade those parts. The factory ones break with hard landing and it is just an insurance thing. Trust me, it will be worth it in the long run when you see that next big jump you want to try.

Widget
11-05-2002, 05:03 PM
Thanks again Rock.

Widget
11-05-2002, 05:11 PM
Although I found Nitro Off-road to be the most exciting (jumps, burms, dirt driving dynamics, etc.) I have been toying with the idea of getting an on-road as well. Do any of you double as on-road enthusiasts? What kit? Is the Tc3 a good start? Do they have a F/T version as well?


Steve

JCason
11-05-2002, 05:12 PM
I have an older 1/12 scale pan car and a nitro 4-tec so yes lots of us like on road also. I must say i like off road better and can't wait to get a t-maxx or e-maxx.

atm92484_3
11-05-2002, 05:14 PM
I have a NTC3 also. I'd reccomend it to anyone since it handles good out of the box, parts are easy to find, its durable, and most of all, its very user friendly. Unless you can race, offroad is a lot more fun (thats one reason why I have an Inferno instead of a Veteq).

DustinAdams
11-05-2002, 05:14 PM
thanx for the help rocknbil, i hope all goes well, ima good driver, though i do need and fm radio, and im gonna get better at looking over the throttle/brake linkages before i start

NewToNitro
11-05-2002, 06:44 PM
HELP! My GT is running great but my track is really tight and technical. My GT doesnt seem to be able to make it through the S turns. Any ideas for better steering? My LHS told me to move the ball to the inner hole on the servo saver for faster steering. Any other ideas?

Bigstick
11-05-2002, 08:26 PM
Just got the rc10 gt rtr plus...the car is brand new and i was on my 8th tank when i noticed that my Clutch bell was spinning uneven. I took it off and found that the bearings (flanged) were shot. Could this be because the engine was running hot (avg. temp was 260-280....i even noticed the temp got up to 300 but went right down when i richen the mix)...i saw that the clutch bell had a blue tent in the inside when i took it off.


nevertheless, the car was running great. It felt like it was broken in just after 3 tanks (can this happen)....no stalls, good idle, good smoke, good speed....everything was going fine.

I just hope that i didn't run to lean/hot...if i did what damage could it have caused to my engine/car after running hot (300) on just 1 tank?

Anyway i got new bearings...can i just clean the clutch with alcohol and put diff lube on the bearings....

Please post any advice or comments

NewToNitro
11-05-2002, 09:09 PM
weird....i was at my LHS today and someone there had the same prob with their GT. His clutchbell was also turning blue. Sorry dont know how to fix it :(


I see your in ATL. I go to douglasville GA a lot and race at toys for boys in kennesaw. Ever been there?

atm92484_3
11-05-2002, 09:59 PM
If the clutchbell is turning blue, your idle is too high or your clutch is damaged and its dragging is causing excessive heat. Get an MIP clutch; its the best fix. The heat generated will also be enough to cause bearings to blow.

wannabee
11-06-2002, 10:35 AM
Bigstick- A temp reading of 260-280 is ok from all that I have read on that engine. I have this engine in my GT and run at about those same temps. Make the cluch change you won't be sorry.

rocknbil
11-06-2002, 11:55 AM
Originally posted by NewToNitro
....My GT doesnt seem to be able to make it through the S turns. Any ideas for better steering? My LHS told me to move the ball to the inner hole on the servo saver for faster steering......

The inner servo hole will be FASTER, but it won't have as much TRAVEL. Note how when you move your steering servo, the linkage on the end of a long arm will travel farther, right? I think what they're telling you to do will actually give you LESS steering for this reason. It will only work if, after you set it this way, the wheels still go all the way to the blocks when you turn right and left. I suspect it won't. Additionally, the leverage required by the servo at this setting will be much greater, causing it to put more stress on the servo motor, causing it to be additionally slower, offsetting any advantage you might gain.

Trucks tend to require a strong steering setup to hold in turns. Check that the servo saver is fairly tight. Not too tight, but tight enough that the cams don't separate when you hold the servo linkage firm and try to turn the tires. If this is good, look into the possibility of getting a stronger servo (and faster, if you can afford it, then it doesn't matter where you mount your linkage.) The Futaba S9402 to is my absolute favorite for RC 10T's and GT's - 111 oz/in torque and a blazing .11 transit speed, not to mention all metal gears and a coreless motor riding on ball bearings. Awesome.

Unfortunately, expensive, I think well over $100 nowadays.

Compromise with a minimum 70 oz/in torque and under .15 transit time, the Futaba S9404 is a good one and is c