Ofna OB-4 International [Archive] - Page 3

YR4Dude

12-09-2002, 09:44 PM

Sure you can!!

But do you have a 20Amp discharger that can give you an accurate read-out?? Or even a 30Amp would be better, but do you???? I didn't think so. But discharging it on a discharger after you've only cycled it once isn't going to give you the numbers you want.

So the better way is to just cycle it often and look for the drop in peak voltage to know you are getting the best out of the batteries you have right now. And instead of wasting all that juice on the discharger, you could be discharging it by driving on the track which is more fun than staring at a discharger.;)

ZoomZoom

12-10-2002, 10:49 AM

Also, when looking at average discharge voltage, you need to take into consideration the discharge cutoff time. All good matchers use 5000 sec. as their cutoff time to calculate ave. dis. voltage. I've seen some matchers use 3500 sec. as a cutoff and this will give slightly higher average discharge voltage. I also look for a lower IR (internal resistance). Much better punch with lower IR.

SyberSerulean

12-10-2002, 05:44 PM

ah, so maybe if i put it to cycle....3 times and put the battery and charger next to a fan..that would work good?

o_O

my other battery (which my bro dissassembled for his own use) is a peak matched stick pack (or use to be). It had matched nicd sanyo 2400 cells. Ive seen it peak at high 9 volt area to mid 10 volt are. What do you guys think of that battery.

also, my charger discharges at 20 amps and i have a 30 amp integy discharger.

YR4Dude

12-11-2002, 01:38 AM

Originally posted by SyberSerulean
....also, my charger discharges at 20 amps and i have a 30 amp integy discharger.

Thats great. So why didn't you give us the 20amp results from your discharger in the first place? Then we would have more to talk about.;)

SyberSerulean

12-11-2002, 11:07 PM

i havn't had a chance to to charge and discharge them.

I remember that one of my old 1500s peaked at 11.05 amps but had an avg. dicharge voltage of 5. something volts.

:/

YR4Dude

12-12-2002, 03:45 PM

Anything less than 6V is not good. Even my bad packs are in the low 6's. My better packs are about in he high 6's. Of course there are others that are even better than that.

You should consider new packs. Hobby People have some Trinity non-matched 3000's for 29.99/ea. You may want to try those next time.

SyberSerulean

12-12-2002, 07:30 PM

im trying to save my money for some matched stick packs. Prolly the Peak ones. Those are good...no?

o_O

ZoomZoom

12-12-2002, 09:13 PM

The best cells will come from the biggest matchers like Trinity, Team Orion, Peak, ProMatch, etc. Go for the big matchers. They go thru 1000's and 1000's of cells for their best team/world packs. Plus they match the best way - 30A discharge, 5000sec. runout. So yeah, Peaks are good cells. I don't know from personal experience, but I see enough of the fast guys running these cells to know they are good.

SyberSerulean

12-12-2002, 09:16 PM

alrighty.

has anyone seen the new option parts for the evo2?

the front one way diff looks like it can fit the ob4. Don't you think?

also, for the thrust bearings, i have carbide ones (losi) and stainless steel ones (from contruction warehouse place). Whats better?

(BTW, i already out the carbide ones in. i just want to know what you guys think.)

spenzalii

12-13-2002, 09:42 AM

Batteries, Shmatteries, it's off season over here. The only thing the weather allows us to do here is carpet racing, and I don't have the time to go out to the stix to do it:( Ah well, after I propose to the misses (which should be next week, assuming her father doesn't kill me 2nite), I think I'll focus on building up my tool supply and beefing up my electronics. I plan on getting either a Hudy or Trinity set up jig, a Quazar Pro charger, new batteries all around, a full set of hex wrenches in both metric and standard (I have the Dynamite standard, may go with the black Ofna metric), bigger tool box, an air compressor (or a 7 gallon air tank with a regulator) and a good airbrush, another gun (debating on a M8 or a Multiplex), and a starter box with an engine or 2, when I go nitro this spring. I'll probably work on a few projects, like my full option XXXS and/or the XXX-R rally conversion and definately my SpeedStickII. If I get anything this winter, it will be a truck or a buggy. If I do get that urge to run in the cold, I don't want to travel to a r/c specific spot, just do donuts in someone's backyard.

Now, what she'll buy me after I give her the ring is a whole 'nother story. Especially since she'll be wearing my 52" TV:rolleyes:

EMT^Racer

12-13-2002, 10:22 PM

Originally posted by ZoomZoom
The best cells will come from the biggest matchers like Trinity, Team Orion, Peak, ProMatch, etc. Go for the big matchers. They go thru 1000's and 1000's of cells for their best team/world packs. Plus they match the best way - 30A discharge, 5000sec. runout. So yeah, Peaks are good cells. I don't know from personal experience, but I see enough of the fast guys running these cells to know they are good.

are the team orion 2400 rocket packs any good? i like the sanyo 2400 stick packs but i need a few more batteries for racing and the rocket packs are really cheap.

ZoomZoom

12-15-2002, 10:43 AM

EMT - I had 3 packs of the TO 2400 Rocket Packs. Good voltage and runtime but not matched. I raced with them in stick pack config. but switched them to sideXside and saddle and used them for parctice packs after I bought a couple matched Ultra Metals and HV's. I'd recommend matched packs for racing. How much are the Rocket Packs now? I got them for $40 ea. in spring.

spenzalii

12-15-2002, 08:52 PM

MEthinks the rocketpacks can be had in 3000s now and are about the same price, give or take 5-10 bucks. That may even be for a pair (look for the e-maxx variant)

EMT^Racer

12-16-2002, 04:27 AM

i find the unmatched packs are pretty good. besides, the club im starting to go to doesnt have many "pros." its mostly beginners and kids wif too much power ;)

the rocket packs are about $45AUS, which is about half the price of a good 2400. i think im gonna go along with it and get one. if alls well then ill get another one later on

i dunno about the 3000s? if there are some, its gonna take australia a while to get em :(

SyberSerulean

12-18-2002, 11:59 PM

whoo!

The toys for tots race last sunday was cool!
My brother, 2 of my friends, and mysekf (of course) all went. It was fun, a bit of a late start though. Charlie accidentally messed up the race entries before the start and had to re-enter them. Anyways, I raced my first heat with the Monster Stock motor, i really like it. Im starting to get the speed i want. I was still geared at 124/39 so later on i dropped a tooth on the pinion. I got 4th that time around. :D Even better yet, when rusty and I were working on our cars some guy with a box wearing a trinity shirt walks up to us and asks whats class we're in. We say rookie sedan so he hands us each cool trinity "dirt bags" battery bags. Im like "alrighty, cool" then he hands us each 2 panasonic matched 2000s packs. Im like "whoa! yeah! score!"
I charged up the 2000s and one peaked at 2800 mah and the other at 2500 mah. Both in the 9.something volt range (peak). Seems they were well taken care of (used packs). Im letting my bro use the pack already assembled in "straight" formation. It just needs wires and deans plugs. I got dissasemble the other one (saddle pack) and make it into a stick pack. Yeah yeah, i should just convert the ob4 to saddle-config, but then id have to convert my other 2 or 3 batteries that i have. Why change 3 or 4 if i can just change one? o_O. That battery also needs wires and tamiya plug. (i might convert to deans, but again, I have to buy the right plugs for all my other batteries)

Well, the races were cut short becuase of the late start, so we ran our mains right after our 1st qualifiers. I took the early lead right behind my two buddies then i turn semi wide around a hairpin and this other guy comes through the inside and nails me. I spin around and another guy hits me. Then another after that. Next thing i know, my steering is off. Im having trouble going straight now. >_<. I manage to pull up from last to 4th-5th area. I hold it, not getting up to 3rd because my steering kept throwing me off of the "route" i set in practice. :-/. I guess i still need to learn to drive better?

O-o

alright im done.

My buddies got 1st and 2nd btw. I can't belive how fast my friend can go with rtr tc3 with a fried (but comm clean) p2k2 pro. :-/

ZoomZoom

12-19-2002, 12:31 AM

SS - Try gearing the Monster a couple teeth down. I really had to go low for mine to make good speed. I gear my P2K2 Pro fairly low cuz it dynos at 30,721RPM. The Monster is a tooth or 2 lower.

Man, I haven't seen any on-road action in a while :( . But I do keep tearin it up off-road :D . I've made the A-main every time now. The last race I Q'd 8th and rolled it in the first turn and the marshall was totally pickin his nose :rolleyes: . So I basically started dead-last far behind the 9th guy :( . I managed to make up the lost positions and finished 8th. I'm learning to stay away from the marshalls and keeping it "between the pipes". Smooth consistant laps is the key (on or off-road)!!! I also try to take the same lines as the fast guys making minor changes to suit MY style better. So why am I tell you about off-road stuff here? Cuz you can use the same tips/techniques in on-road racing.

I have 2 packs of Sanyo 2000's. They are great! Lots of punch to them. Really good voltage #'s. I got them from another racer that ditched ALL his batts for ALL 3300 cells - 8 matched packs worth! I get 2400-2600mAh from them too. The only thing is the voltage really seems to drop off sharply after a lap or 2. With my Ultra Metals, the voltage isn't quite as high but it stays higher on average for the 5 min. race so I'm still making good speed at the end of the race. I usually use the 2000's for practice packs. I have used them once in a main when I wanted to get a nice holeshot at the start. Worked great. I went from 5th to 2nd after the first turn and the to 1st after the third turn. I ran a clean, marshall-free race but they chased me down and I ended up 4th. It was really frustrating in the last few laps as they werepassing me and I had no punch :( . Oh well, at least it was my second-best finish of the year (3rd being my best) so not too shabby for some tired, old cells :) .

Man, I wish I could scam some freebies :p .

YR4Dude

12-19-2002, 01:40 AM

Couldn't cough.... make it cough..... to the cough... cough... toys cough...cough..cough.cough.cough f'totscough cough cough cough cough cough....... race. Can't stop cough cough cough cough cough cough cough cough...... Well y'now what I mean. Been sick. Glad to see everyone had a good time.

spenzalii

12-19-2002, 03:43 PM

Bah. I'm not having fun, I'm getting engaged. Not quite the round up the fallas and go shootin, drinkin and find some unwholesome women kind of thing, you know... :D But it will pay off in the end.

spenzalii

12-31-2002, 11:39 AM

Merry Kwanza? Blessed Present Day? Whatever. I hope the year finds all happy, healthy and racing! What did everyone get?

YR4Dude

12-31-2002, 12:25 PM

A New Sirio 5 port Outlaw Turbo!! Gave it to myself for Christmas.

I also got a nice warm jacket from my wife for those cold days at the track.

spenzalii

12-31-2002, 12:33 PM

Man, I wish I had the jacket:rolleyes:
I was thinking about getting thet same engine for my upcoming NTC3. Let me know how it runs. I've got a lot of projects to get on during this off season, especially since my fiancee (man that sounds wierd) promises to subsidise my habit. I think the ring has had a positive affect...

SyberSerulean

12-31-2002, 07:39 PM

half-life platinum collection

thats about it from my parents.

i also got a cyclone tc2 from the money my godparents gave me. (30 bucks, bought the cyclone off my friend, whoo!)

so yeah, the cyclone was a STEAL!

now to get a friend to solder the wires and program it.....

ZoomZoom

01-01-2003, 01:05 PM

Merry New Year :D !

Just got in from a week & 1/2 in sunny, warm Florida where my parents live. Went to Siesta Key Beach with the family and there were a bunch of guys there that carved out a track in the sand and were racing their trucks and buggies. I also had to get our minivan fixed while we were there (CV axles :( ) and the mechanic there was wrenching on his Tamiya TXT1 and we 'shot the R/C ****' for about an hour.

I got a $150 gift certificate from Tower :D . I also got NOLF 2. And some other stuff not worth mentioning here :p .

I'm thinking about getting an R/C sailboat. My Bro-in-law is going to get one (as well as a real sailboat). That or tires, motors, batts, etc. :p .

SyberSerulean

01-01-2003, 04:50 PM

NOLF 2?

spenzalii

01-01-2003, 11:13 PM

No
One
Lives
Forever

at least if I remember correctly. a PC game, yes/no ZZ? And CV axles do suck. BTW, which minivan do you have? If it's a Chrysley, depending on the year, change the motor mounts too. Trust me on this. If it's anything else, disregard.

ZoomZoom

01-03-2003, 12:49 AM

Yep spenz, No One Lives Forever 2, a PC Game. I thought NOLF (original) was 'off the hook', '2 ROCKS!!!.

Yep also on the Chrysler minivan. The mechanic told me the same thing on the motor mounts. He checked them out and they are good for the time being. I know one thing, I won't be buying another Chysler minivan, that's for sure. I've got about $6500 in non-warranty repairs on the damn thing! I guess it's like R/C cars - buy cheap and be prepared to spend some money :p .

BTW spenz, I don't think I ever told ya' congratulations on your engagement and best wishes :D .

spenzalii

01-10-2003, 12:00 AM

Well, a minivan is a minivan. Chrysler sold 50 zillion of them, crappy motor mounts and cv joints or not. Working as a parts tech for a few years, I've seen quite a bit of those. At least it wasn't the tranny.

Oh and thanx. Planning for this thing is becoming a nightmare, and it's not until August! It's like a catch 22: feed a bunch of people that I don't like and be broke, or just fly to aruba, have the wedding there and have a bunch of people mad at me. I should take out a collection plate. And they wonder why I want my r/cs!

SyberSerulean

01-10-2003, 12:01 AM

elope, lol.

spenzalii

01-10-2003, 12:54 PM

Laughs and Giggles, but that's not such a bad idea at this rate. Oh well, All this stress makes me want to go buy some stuff for my XXX-S. Those blue aluminum arms look about right...

SyberSerulean

01-10-2003, 11:56 PM

im gonna be heading to SoCal tomorrow. Lets hope i do gooD!

spenzalii

01-11-2003, 06:47 PM

Yo SS, I forgot to ask how you like your 16x7. I was thinking about getting one in my great winter update.

SyberSerulean

01-12-2003, 08:12 PM

it is awesome. i like it alot.
well, i came in 4th in my a-main yesterday. Kinda bummed since i was doing really good. That monster stock motor rocks. its so fast. :D

ZoomZoom

01-16-2003, 11:09 PM

Hey, I spent my $150 gift cert. from Tower. I got a Reedy MVP Stock Plus motor, a couple pair of ProLine buggy rears, a set of buggy fronts, motor spray, some Trinity 99 Plus crosscut brushes, red & green motor springs, a set of Ofna hex wrenches and a Trinity Ultra Monster Hauler Bag.

The MVP SCREAMS!!! especially with the new brushes and springs. Lots of punch and plenty of top-end. And the powerband seems to be nice and linear. So far my fav. and fastest motor (best lap times with my XXX KE). With power like this, I didn't even mind soldering the 3 caps to it. The bag is real nice too. Now I just load up my stuff in the 3 boxes in the bag and grab my tool box and I'm off. Now more 3 trips from my trunk to the pits and vice-versa. Can do it in one :) .

I'm in the process of an overhaul on both my Yok and OB4. Haven't raced these on carpet for a while. Been racing my buggy though. I've made A-main in all my races so far. Sometimes just barely :p. I took 6th in last nights A-main (Q'd 6th too). Again, I rolled it in the 1st couple turns and ended up dead last before the 1st lap was done playing catch-up. But I managed to gather myself up and reel them back in and made up the lost positions. We've got this wicked table-top, double, double, double rythum section that I have totally nailed as far as timing. I gain a lot of time here :) . I seem to always be playing catch-up. I drive better this way. But as soon as I'm in the lead, be it a Q or a main, then I fall apart :rolleyes: . I've got to learn to get over this mental block :( .

I also got a couple new PC games. MOHAA (Medal of Honor: Allied Assault) and Hitman 2. If you're a gamer, these 2 are definite "MUST-HAVES". Especially Hitman 2. This is my fav. so far. I haven't played NOLF 2 since. MOHAA = highly recommended. Hitman 2 = HIGHLY RECOMMENDED!! Make sure you have the power to run these games in all its glory though. A high-end 'gaming' PC is a must!

SyberSerulean

01-17-2003, 05:36 PM

i have an amd k6-2 500 mhz with 128 megs ram and a pci 64 meg geforce 4mx420 videocard. :/. prolly can't run those games well.

spenzalii

01-17-2003, 09:21 PM

And I have a PS2. Whoopie doo. I can get Hitman2 without neeeding a patch a week or optimizing my hard drive with my Radeon 9700 vid card et.al. I would if I could though..

SyberSerulean

01-18-2003, 08:36 PM

you have the 9700?

O_O

how you like?
can your pc keep up with it or what?

spenzalii

01-18-2003, 10:07 PM

No. That was simply sarcasm. While I could play the game on a PC, the cost and complexity of running it on a PC tends to outweigh the graphics a 9700 would produce, IMHO. But if I had the money, I would get it.

SyberSerulean

01-19-2003, 12:34 AM

did i already say the kind of videocard i had?

my pc can't even take full advantage of it. (its a GeForce4 mx420 PCI)

spenzalii

01-19-2003, 07:49 PM

Yep. Sounds like it's time to re-up the computer buddy

SyberSerulean

01-19-2003, 09:42 PM

how do you expect me to do that? :(

spenzalii

01-20-2003, 10:03 AM

We know, it's not happening any time soon. Don't sweat it too much; just work with what you have. I need to upgrade my P3 at some point and actually GET a good vidoe card. In the meantime, I just enjoy my PS2: no muss, no fuss

SyberSerulean

01-20-2003, 01:34 PM

check this out guys....

http://shop3.outpost.com/product/3531084/

ZoomZoom

01-21-2003, 12:14 AM

Don't get the 9000 Pro that's on that system. It's a D-O-G!!! I just picked up the ATI R9500 Pro ($200) and still have my ATI R8500 LE (volt-modded, with Alpha heatsinks on GPU and memory and able to run at 300MHz+ core and 300Mhz+ memory, although I keep it at 285/285 usually). I still have my 1800+ AthlonXP and 266 DDR and it's really all I need on that front. Maybe by summer I'll be upgrading to a 3GHz+ P4 or whatever. I'd like to stay with AMD if I can. I like the underdog :p .

Well my rebuilds are pretty much done. I cleaned up my OB4 and Yok pretty good. Used simple green to get the crud off and they shined it up nice with WD40 and a brush. Looks brand spanking new :) . Now I'm looking for a couple new TC bodies. I may get the 2.0 Stratus and the Frewer RX7 (http://195.92.181.95/schus/dept.asp?dept%5Fid=70&mscssid=17V3F4XDRLSR2J1F00AKHUAEHAFK7K7B#). What are your thoughts?

spenzalii

01-21-2003, 11:31 AM

The Frewer looks good from the profile, but the front end is kinda messy. I still like it. For the Stratus, well, if you're running competitively, it seems like the only way poeple are going. I hate that. I'll probably pick up the Altima bod just to be different. Hopefully it won't handle like crap. Give the 2.0 a nice paint job and let it go.

ZoomZoom

01-21-2003, 10:48 PM

Yeah, seems 80% are using either the 1.0 or 2.0 Stratus. I'm one of the few that use something different (Mitsu Eclipse and Civic Si). I'm hoping that HPI will release a 190mm or 200mm RX7 body. They have a sweet looking Micro RX7. For the most part, racing the regular club races I use whatever body I feel like at the time (usually my Mitsu). But I have to use my barely-staying-together Protoform Stratus for the "santioned" races.

spenzalii

01-22-2003, 03:08 PM

That's about right. For some reason sanctioned bodies only allow 'sedan' bodies (read:4 doors). The Accord was the de facto standard b4 the advent of the Stratus. I suppose if you want performance, you take your pick. I really hate those bodies, so if I ever have to run them, I get as many stickers or crazy designs as I can find.

I too prefer HPI bods. They have great attention to detail and hold up quite nice. They also have a wide assortment of detail stickers (which you take for granted until you have a car that doesn't come with window trim stickers). Proline/Protoform does a decent job, but their decals come up lacking. And Bolink, well, we won't even go there. I may break down and get that S7 and ride that for a while, if I don't get the Aston (part of the over-the-pond collection I'm putting together)

spenzalii

01-29-2003, 01:59 PM

My People (Hold On...as the great Eddie Kendricks once sang)! What's shaking? I'm looking into getting some BLUE aluminum hop-ups for my XXX-S and turn that chasis into the showcar with the Jag.Plus I may get a Nitro OB4 (if someone holds onto it for me, wink wink) in a bit. I'm looknig into another pretty electtric, but aren't sure whether to get the new T1 (molded chasis) or the Neo TNT (I think thats what it was) or splurge and get a 414MII from Ultimate. What'cha think?

Devin

01-29-2003, 03:00 PM

Xray evo II, I love mine!

ZoomZoom

02-04-2003, 10:55 AM

Spenz - looking to be different? Check out the RC Labs 7even 6.0 or the new Tamiya TB Evolution III. Check out SpeedTechRC (http://www.sslorder.com/speedtechrc/99.html). Or how about the Yokomo MR4TC Special V2 with the SSG (silver surface graphite) (http://64.70.208.72/speedtechrc/109.html) conversion. A bit on the expensive side but definitely cool. I take it you want something different. Cuz the new XXXS Graphite Plus looks fast.

But it you are dead set on the Xray or Tamiya, then I'd get the 414MII. Both are superb picks though so either way you go, you can't lose. Which has better parts support in your area?

I'm still thinking about getting the RC Labs for the summer race season. For $300-350, I can get the car, spare parts and a couple hop-ups.

spenzalii

02-04-2003, 11:19 AM

Dead set, no. Actually, my oversees connection knows who could import that Robotrinic single belt a few pages back. It's aroung $430, but I may gat that just as a show piece. Looking at the instruction manual, it looks remarkably similar to the one that came with the OB4, albiet in english, dutch and german.

VaioGeek

02-14-2003, 04:39 PM

In case you do - i've made up a setup sheet and gear/roll-out calculator in excel format. I've had them posted at our local track website:

http://www.nrccrcc.netfirms.com/NSSetup.html

If anyone has some suggestions on how to improve them I'd like to hear about it.

Cheers!

SyberSerulean

02-14-2003, 07:09 PM

yay, forum isn't dead lol.

i got 3rd at the last OC circuit race in la mirada. Damn f201, it was too fast (only f1 car there so they put it in my class along with the mircors. :/)

spenzalii

02-14-2003, 10:26 PM

You got a F1 car? How you like it?

SyberSerulean

02-15-2003, 06:18 PM

who? me?

nono, i raced against one, lol.

YR4Dude

02-16-2003, 02:53 AM

Well, it looks like I just might revive my International soon. All I need is a new set of shocks and some bearings. The cost would be about $20 for the bearings and $36 for all four shocks using threaded HPI composites. I'll let you guys know how it turns out.

Anyway Spenz, here are some of my latest work in paint:

YR4Dude

02-16-2003, 02:59 AM

Here'se another:

spenzalii

02-16-2003, 12:35 PM

Oh so purrrrty! Just wait until it thaws out. It's too cold to really do anything, so painting is out too. That's cool; I can focus on getting my charger and a compressor. I suppose the Camaro is on the nitro something. Very nice work. As for the shocks, check oou the 'clicker' shocks at CRC racing, at $22 a set, it's a steal.

BTW, is the NOB4 still on the market?

YR4Dude

02-16-2003, 02:33 PM

Sorry Spenz, just sold the rolling chassis to a local buyer for $200.

I might be selling my Yokomo GT-4 if you're interested.

Here's another one for you guys to look at.

spenzalii

02-16-2003, 08:29 PM

What's it come with. And nice Alfa. Going for the similar scheme in your cars, huh?

YR4Dude

02-17-2003, 01:25 AM

Yeah thats the theme I've been sticking with. It quite a change from flames which everyone else has already done over and over. Perhaps I may come up with something else different on my next job.

The Yokomo is the one I've been driving lately at my local track. It is the GT-4R model. It has a 3.5mm 7075 chassis, alum pullies, oneway front, solid axle rear, alum shock tower front and rear, low CG engine mounts, pro style(non RTR) radio plate, front universals, clamping hubs and a Lola body. Of course the body is somewhat beaten up but I would provide a freshly painted body once it goes on sale. It also includes the three shoe clutch with low CG flywheel. That is the chassis.

As for the motor that is in it, currently I'm running a Sirio Outlaw 5-port turbo with SG crank. It also has a Novorossi pipe. The tires are in good condition except for the rears which I would replace with new ones.

The electronics are something I plan on keeping except for the receiver pack which will stay with the chassis.

I am thinking of going to 1/8 but someone told me that its expensive not just because of the cars, its because 1/8 will blow motors 4 times faster than 1/10. In other words, to run 1/8, I would have to purchase or rebuild the motor 4 times in one race season as opposed to having to deal with that once in 1/10. So I am not too thrilled about that.

I was thinking of maybe 1/5 but those cars are a little on the slow side for my taste.

What do you think?

I know. 1/8?? 1/5??? What kind of budget are you thinking on?? Well, here's a thought. If you add-up all the money you spent to get your 1/10 up to the performance level you expect it to be, how much money is that? The answer for me is almost $800 to $1200. So if I were to consolidate all of my 1/10 into just ONE CAR, what will it be? Think about it for yourself and see what you come up with.

spenzalii

02-17-2003, 02:55 PM

Guess I should have checked this thread first:rolleyes:
IMHO, 1/5 scale. It's different, it runs gas (easier to tune, probably more reliable) and is quite a challance. While I haven't heard the engine problems (then, not to many people run them this way) it is expensive (choosing the car and then a good .21)

Heck, if I get a 1/8, it will only be the GTP. Heavy as all get out, yes. Competitive, no way. But nearly indistructable, super wide track and with a 2 speed and the new pull start Picco .26, probably more fun than a barrel of monkeys. Put that in the parking lot!

SyberSerulean

02-24-2003, 11:00 PM

hey guys, i went to SoCal saturday night.

Pretty cool if you ask me. I placed 2nd in both my qualifiers (and with a dead battery at the end of first heat, i barely made it passed the line). I was pretty happy, i qualified a-main in 5th. Fast guys out that day. Well, i tried my hardest and around the first turn i get pinned against the wall by another driver. phooey. I fall to last and slowly make my way back up. 1st 2nd and 3rd place cars were fast! I couldn't keep up or catch up and i ended up finishing in 4th. Best ive done in an a-main EVAR.

:D

spenzalii

02-24-2003, 11:47 PM

Cool Beanz bud. Where was your loss of speed:equipment or skill? Either way, great job. I'm waiting for all the snow to melt over here and for the missis to buy my 'gift'. I haven't a clue what she's getting me (besides mr XR-S controller: no more crystals!) but I have to like whatever she gets me.

SyberSerulean

02-25-2003, 05:45 PM

my loss of speed was speed itself, i was driving around the track pretty good. (good enough to fall to last and move my way back up to 4th like i said happened)

oh yeah, im still using the monster stock motor and i just bought another pinion thats one tooth lower than what i had. (went from 38/124 to 37/124)

spenzalii

02-25-2003, 07:23 PM

How's the track at SoCal? Tight or long? And what are the other guys running? If it's all stock class, it may be either the motor or the gearing. A 35 will probably give you a bit more squirt out the turns

SyberSerulean

02-26-2003, 06:13 PM

im slowly gearing down to see whats best.

The track is relatively small but it can go from a speedy straight track to a really techncal track.

http://www.socalrc.com/images/orpano.jpg

thats a pic of the track. As you can see the track's layout can be rearranged for different things.

if you wanna learn anymore about it go

here (http://www.socalrc.com)

spenzalii

03-13-2003, 01:53 PM

Compadres!
After enduring weeks of snow, rain and flu, it's finally starting to get warm around here. You know what that means: RACE SEASON!

I can't find another OB4, so I may get a mid-drive Neo ($124) and lace it with as much aluminum as I can and drop a concourse body on that. Most of my projects have been put on hold as wedding plans have taken priority, but with the weather breaking, I have to make some concessions there.

I will be branching into the wonderful world of Nitro this year. I'll probably just get a GTP for play for right now (big, heavy, easy to get parts for) and wait for the LD3 Pro to drop. I figure I may as well be slightly different from the Pro3SS people running out here. I do have another project car in the works, but I'll have to see the price on that. Oh yeah, I'll have to pass on the GT4 for now, YR4. The missis needs another axle on her real car (and I just shelled out dough for the driver's side before it snowed. Ain't life grand?)

What are yoyu guys planning on?

SyberSerulean

03-13-2003, 11:05 PM

seen the new shaft drive yokomo?

that=cool

spenzalii

03-13-2003, 11:38 PM

I was thinking about this:

SyberSerulean

03-14-2003, 12:32 AM

whoa, how much is that?

spenzalii

03-14-2003, 09:09 AM

Probably more than I want to spend...
Actually, around $320. SPeedtech is importing them from Japan, so there's a bit of cost involved there. But, I know nobody over here will have them!

SyberSerulean

03-15-2003, 02:27 PM

indeed. Anyone check out the Academy STR-4 Pro? that thing rocks!

rx78gp03s

03-17-2003, 09:58 PM

hehe
i got a hold of this chassis!! damn its nice. i think i'll be a collector of these rare old r/c car chassis.

spenzalii

03-18-2003, 11:51 AM

And where, pray tell, did you find one?

rx78gp03s

03-18-2003, 11:56 AM

a buddy of mine bought a t maxx off of this guy who used to be sponsored by ofna! and he gave an unbuilt ob4 to him with the maxx, and suprise suprise, i bought the ofna off of him! its crazy how the condition of this chassis is. i dont' have the stock shocks on there tho :(.
are there any hop up parts for this thing ne where? or is my car obsolete now?
its the ob4 international proII

spenzalii

03-18-2003, 12:02 PM

Well, they did discontinue it about a year ago, but there are parts floating aroung for it. The arms for the Nitro OB4 will fit, and at one point there were aluminum gearboxes and bulkheads available from Ofna as well.

rx78gp03s

03-18-2003, 12:04 PM

are the gear boxes still available for cheap? hjehe

SyberSerulean

03-18-2003, 01:03 PM

show us some pics of it. International pro 2...

is that the mid drive one?

*shrugs*

rx78gp03s

03-22-2003, 11:34 PM

hehe here we go
my ob4!!!:
http://members.shaw.ca/rx78gp02/ob4/ob4d.jpg
http://members.shaw.ca/rx78gp02/ob4/ob4b.jpg
http://members.shaw.ca/rx78gp02/ob4/ob4a.jpg
look how new it is on the bottom!!!

SyberSerulean

03-23-2003, 12:04 AM

thats just a regular ob4 international.

isnt it?

rx78gp03s

03-23-2003, 12:15 AM

its the ofna OB4 International Pro II:

http://www.ozshops.com/cgi-bin/RT_Resp.cgi?application=hongnor

spenzalii

03-23-2003, 01:02 AM

Yep, looks like the OB4 we all know and love, except it isn't purple. I still want one. On a side note, I finished my buddies RS4 Pro. I'll post a few pics in a bit. Then it's on to the LD3!

rx78gp03s

03-23-2003, 01:04 AM

RS4 PRO?!?! omg i have that thing!!
here's a pic of myrs pro next to the ob4!!!
http://members.shaw.ca/rx78gp02/ob4/ob4e.jpg

spenzalii

03-23-2003, 01:10 AM

Yep, that's the one. They look quite a bit alike, don't they? His has a lot of GPM aluminum stuff on it. It adds weight, but he's not going to race it. I'll put up pics at some point.

rx78gp03s

03-23-2003, 01:15 AM

they are waaaaaaaaaay toooooo similiar. servo's are in the same area, there's a dual deck. event he belt configuration is the same! if u ask me, they took a look at the rs4 pro and improved on it.

spenzalii

03-23-2003, 01:27 PM

Or more like a RS4 with a pivot ball suspension. Either way, I loved mine while I had it.

SyberSerulean

03-23-2003, 08:10 PM

personally i thought the ob4 looked more like a pro2. o_O

spenzalii

03-24-2003, 08:41 AM

The Pro and Pro2 were pretty similat to begin with. The suspension geometry was changed a bit in the 2, the chasis was a hair longer and a center bulkhead was added. Much like running changes for a 1:1 car (or in that case, '96 to '98 car). Either way, it lookes pretty good, and performed OK. A bit too much suspension slop in there for me, though

SyberSerulean

03-24-2003, 05:35 PM

what, in the pro or pro2?

rx78gp03s

03-24-2003, 06:58 PM

i love my rs4 pro....
and now my new baby, the ofna ob4......
god its gonna be insane finding parts for it.

SyberSerulean

03-24-2003, 07:00 PM

don't worry about parts, its a tough car and hardly ever breaks. (i been driving mine for a year and a half, and only thing that broke was rear axle. no biggie)

nothing else has ever broke. Except my servo, i got forceslammed into the boards cause of a jackass driver. Jammed my steering up to one side, and when i forced it back to center, i broke the server's gears. Easy to fix though, just install a new servo. :D

spenzalii

03-25-2003, 01:28 PM

Good deal for you. I snapped a steering knuckle trying to pop off the link before. There are still a few parts for the OB4 out there. If your LHS carries OFNA parts, you'll be OK.

SyberSerulean

04-06-2003, 01:10 AM

heheh, ofna's u.s headquarters or "big place" or whatever is within a 50 mile radius of here, so if i ever need parts badly i just go there. (nitrohouse is what one guy called it).

spenzalii

04-07-2003, 05:11 PM

Lucky stiff. That is, if your parents will get you there:D j/k buddy. My LD3 should be here tomorrow, but I can't get any updated tracking info and it's going to rain most of the week. Ah the joy of weather!:rolleyes:

SyberSerulean

04-08-2003, 01:19 AM

booyah, i just picked up a factory team tc3 with extra stuff off of ebay for $165. :D

spenzalii

04-09-2003, 12:06 AM

Goodie 4 you. The LD3 finally showed itself. Descriptions to follow!

SyberSerulean

04-10-2003, 03:59 PM

im still waiting for the tc3, lol. :p

spenzalii

04-10-2003, 04:06 PM

Well, me see and me like! If only it didn't have that blasted Force 12 in it (and had a carry handle!) it would be great. I hope to break it in this weekend.

SyberSerulean

04-10-2003, 04:11 PM

*hugs his picco .12*

neener. :p

spenzalii

04-10-2003, 04:17 PM

Hehe Haha:rolleyes: That's cool; the Collari is in the works:eek:

SyberSerulean

04-13-2003, 02:44 PM

the tc3 came in yesterday, yippeeee.

i dont want to transfer the elecronics from my ob4 to the tc3 though, the ob4 is running grreeaaat right now. :/.

spenzalii

04-13-2003, 07:44 PM

Did you figure out there your power deficit came in?

SyberSerulean

04-15-2003, 10:47 PM

what? o_O (btw i got a job, so i might get seperate electronics. yay)

samaj

04-18-2003, 11:15 AM

Has the new OB4- ( Or OB4 Pro-2 ) been reviewed in the RCCA magazine. If so which issue( month & year ) ?
If not........where can i read a review on this new model.

nomac

04-22-2003, 11:23 PM

i hate soudin like a nwb an all but this guy has a great deal on an ob-4. i sold my tc-3 to get another see-dan and i 'bout can't pass his up. my only problem is parts & option support. my main items were the layshaft pulley and the front one-way diff option. is there a place i can get this sort of stuff? thanks for the help.

i thinks it's a good car. and definately a sleeper at any racetrac. i just want to know the tools would be there when i need them. (speed stuff that is) :)

spenzalii

04-23-2003, 09:54 AM

I can'tremember seeing a one way for the OB4 at all. As far as the layshaft pulleys go, you can still get a set of aluminum 15t pulleys from Ofna. If those are hard to find, HPI makes a set for their RS4 sedan line that will work as well. In a pinch, you could use the ones for the Nitro RS4, but I can't remember the tooth count. You will have to readjust your gearing if they have more teeth to account for the change in the FDR, but that shouldn't be too bad.

nomac

04-23-2003, 06:56 PM

thanks spenz.... so it may be true that hpi front one-way could fit the electric cars from ofna!

spenzalii

04-24-2003, 03:48 PM

Take the car up to whatever shop has them and see if they'll let you drop it in the case. It should work, but I can't remember the size of the outdrives or the bearing that holds them. Honestly, you should be fine without the one way, but if you must...

Another option you may have is the 15t one way pulley for the layshaft of a RS4 Pro. HPI may still make them and that should fit too. I believe it works on the same principle as the adjustable pulley on the Xray T1

Se_12alty

05-07-2003, 01:53 AM

ran me ob-4 today for a bit. as i was practicing my drifting on the parking lot i lost control and slammed the side hard on the parking curb. at first i though maybe the steering arm would've broke but to my amazement it did not. i was driving w/ the body off btw. so eyeballing it i found no damages except some white scuff on the cars tire. as i drove off attempting more drifts i notice the big black thing flies out and my red battery pack is sliding out the passanger side. i'm like oh no! the lock for the batt. fell out, how could this be? well when i picked it up i noticed that when i drifted into the curb the holder hit and took the impact bending the screw and ripping it out. other then the screws bent the chasis also cracked a very minor bit, thank god i super glued the edges prior to running long ago. well the car is up and running again thanks to some new screws and super glue to ensure it stays in place. but just keep in mind our car isn't the easiest to get parts for so drive it like its made of glass or else you'll face some major down time.

SyberSerulean

05-12-2003, 08:21 PM

mine has taken some major hits, but its never really broken at all.

:D

spenzalii

05-13-2003, 09:23 AM

Well, with the advent of the LD3, there may be some hope. I believe the arms and knuckles are the same, or very similar, so you may be able to use them. As far as the shock towers go, well, just be really careful there

BTW, my LD3 kicks much arse!

Se_12alty

05-13-2003, 10:19 AM

i accidentally ran dead smack into a car tire the 1st month i had my ob4 and had to replace the front shock tower because the body post ends snapped. i wasn't sure how good the gas would fit but after some major dermal modification for the belt groove it fit on there great. downfall: my suspension in front has no rebound and is stiffer than the carbon fiber chasis. :p

SyberSerulean

05-14-2003, 11:09 PM

um...cool? :confused:

Dinternetman

07-22-2003, 01:20 AM

anyone have an extra front shock tower?

spenzalii

07-22-2003, 09:02 AM

Holy cow, this link still exists?

Afraid not on the shock tower. The best thing you can do is probably give Nitrohouse a call with the part number. They may be able to find something, seeing they are so close to Ofna.

SyberSerulean

07-22-2003, 12:57 PM

*agrees with spenz*

sorry to say but ive hopped on the tc3 bandwagon. :eek:

spenzalii

07-22-2003, 01:13 PM

AWWWW man. Well, at least you get parts support. Then again, I can't talk. I was never able to get another OB4 and still roll with my XXX-S

Dinternetman

07-22-2003, 01:20 PM

I thought this thread was dead too, i recently got an ob4 international and i decided to read every single page of this thread and learned quite a lot. it's nice to know you guys are still here if anyone needs help with their ob4 international

spenzalii

07-22-2003, 01:22 PM

Yeah, well, we do what we can:cool:

SyberSerulean

07-22-2003, 09:58 PM

yep. I use mine as a backup car incase my tc3 breaks and i dont have time or money to fix it. :D

Dinternetman

07-24-2003, 11:32 PM

today i ran my ob4 and stripped the spur gear and i thread locked the pinion gear and now i can't take it off. Any ideals on how to take it off? Also what pitch are the gears so i can get a new spur gear? thanks

spenzalii

07-25-2003, 12:59 PM

The OB4 used 64 pitch gears (the really fine ones). I'm not sure why you threadlocked the pinion on the shaft, but you may be able to get it off by taking the motor out of th car, turning the motor upside down and lightly tap the output shaft of the motor

jives

07-25-2003, 02:00 PM

I treat my OB4 like fine china since parts seem to be so hard to find :(

Some told me parts for the Neo (http://www.ahc1931.com/T21s.html) might work any one tried these?

AHC has a few more OB4 hop-ups (http://www.ahc1931.com/cgi-bin/miva?Merchant2/merchant.mv+Screen=CTGY&Store_Code=ahc1931&Category_Code=OB4HopUps)...really all I want are replacements in case I do ever break it.

SyberSerulean

07-25-2003, 02:26 PM

uhh...spenz...

unless the pinion is smaller than 34-33 tooth, your not gonna be able to get the motor out cause the space in the bulkhead is too small. Youd get the motor loose, try to pull it out, and the pinion would be too big for the hole. How i did it was i took the pinion off first, then i took the motor out.

anyways, dint, what color threadlock did you use?

Dinternetman

07-25-2003, 02:42 PM

the blue stuff, i figured out to just fork out the pinion from the motor with a screwdriver. thanks for the help anyways. nice jives for finding those links. I've read in this forum that the arms and some parts from the nitro ob4 fit on the ob4 international. Also that Neo is ....interesting.

spenzalii

07-25-2003, 02:44 PM

You're right, ss. You forget, it's been a while since I've had mine and I didn't bother to ask if it was out of the car. There are a few other parts that fit, but I can't remember what.

And yes, the Neo is interesting (and inexpensive!), but you may have as many problems getting parts for it as the OB4

SyberSerulean

07-25-2003, 03:58 PM

what is the neo made out of anyways? by the looks of it it looked like some plain old molded stuff.

spenzalii

07-25-2003, 04:13 PM

I think it was carbon fiber plate, but it's kinda old by now, so I can't quite remember

darryl189

10-17-2003, 07:45 AM

I was wondering what gearing you use in your OB4's. I am looking at getting one second hand and this one has an 81 spur and a 27 pinion. At the moment it is pretty slow and I want to change the gears to make it faster. Any other suggestions?

darryl189

10-17-2003, 08:27 AM

Me again, I forgot to mention that the motor that is currently on the OB4 is a Peak Panther 27*1;)

spenzalii

10-17-2003, 09:28 AM

Man, it's been a ling time since anyone hit this thread...

Um, it sound like the car is running 48 pitch gears. Originally, it ran 64 pitch. Give me a minute while I figure out what the original gear ratio was and try to convert it to something a stock motor will use...

spenzalii

10-17-2003, 10:30 AM

OK. FDR should be something like this: spur/pinion*2.19 (I hope that transmission ratio is correct). So right now, you're running somewhere at a 6.57 FDR. Try swapping to a 93 tooth spur (if you are indeed running 48 pitch) with that pinion and see how that works

Dinternetman

10-18-2003, 01:56 AM

is it an easy task to change the gearing pitch from 64 to 48?

spenzalii

10-18-2003, 11:07 AM

Yes. Just change the spur and pinion from a 48 pitch set to a 64 pitch set.

At least I think that's what you're talking about. If you want the formula to convert the gear pitch, use this

48 to 64 pitch
gear size / 1.5 *2

eg. 27 pinion / 1.5 = 18 *2 = 36

64 to 48 pitch

gear size / 2 * 1.5

eg 128 spur / 2 =64*1.5=96

Dinternetman

11-02-2003, 07:31 PM

just feel like giving some imput into this thread.

I just put a trinity d4 9 turn double in my ob4 and it's FAST. My gearing is really off though. I got a HPI 122 spur and 35 pinion. It takes a little while for it to accelerate but once it does it's got pretty good speed. I might switch to 48 pitch because LHS doesn't have a lot of 64 pitch stuff.

The_In_Kid

11-24-2003, 01:18 AM

what parts break the most on the OB4 i just started 19 turn and i'm very happy with the results...

what are the parts that break the most?
btw can someone post part numbers too?

The_In_Kid

11-25-2003, 04:05 AM

common where are you people?

spenzalii

11-25-2003, 09:44 AM

Man, this thread seems to resurrect itself every few months...

It will be quite difficult to find part numbers for the OB4 INt'l, since Ofna quit selling their electric car some time ago. I'll see if I can find some numbers somewhere. If you can find some shock towers and front and rear knockles, you sjould be OK

The_In_Kid

11-25-2003, 06:55 PM

hong nor has the products so it should be good

spenzalii

11-26-2003, 09:19 AM

Assuming you find a shop selling them or importing them, you should be OK. It really was a nice car, just no support.

The_In_Kid

02-05-2004, 01:15 PM

so how about those OB4's? am i the only one in North America racing one still LOL?>

spenzalii

02-05-2004, 01:50 PM

haha. It may seem like it. I'm sure they're are a few out there somewhere. Don't feel bad.

Kenny T

02-06-2004, 07:58 AM

I know a guy in CA running a OB4, so I guess you not the only one. ;) Where do you get your parts from, my friend need soem rear suspension blocks.

I would like to get my OB4 running but I have too many electric touring cars at the moment and parts are easy to get for me, I live in Australia where Hong Nor still distributes the electric OB4's. :)

The_In_Kid

02-06-2004, 08:54 PM

i might be ordering from the phillipines where i have family...

i went through some racing sites there and a bunch of them are still racing with it... i'll be ordering every part i can get :)

Tamiya Man

04-12-2004, 12:41 PM

Wow, last night it took about three hours, but I read the entire forum. I have the GM TC4 and it is great. I also got a GM VIS COMMANDER off of ebay for 100 dollars(thank you buy it now) When I was at trackside for the first time about a month ago, to took second in the B-Main. First heat i missed because i needed to tighten my diff and rear belt. Second heat I missed half of it becasue something came out of my esc so i needed to resolder(sp?) it. the rest of the heats i dont remember. Then the main, I took the lead right away when I went high around the other cars, then right at the first turn, the other 3 cars got into a crash and i think all of them broke. So we had to restart the race. Once again, I took the lead early on, but a crash with a lapped guy, and lots of flipping because of traction rolling, i took second. The thing is, i a was running dual one-ways, and one of there person there commented on how well i was driving with the oneways. Idk, i like how i can let off the gas, have the rear come around, and punch it. One thing im gonna do is add some negative camber, and get rid of almost all of my rear roe in, and raise my rear ride hieght.
I am running a team 1 stock motor(based on the revenge of the monster) peak batteries(planning on getting some team 1's becasue there are like 30-50 dollars(depending on what you get)and have a GM V12, and some hitec radio(its 3channel and FM, i forgot the name)
just thought id say hi(and lets try to keep this forum going.)

spenzalii

04-12-2004, 01:37 PM

man, someone keeps resurrecting this thread....gotta love it!

Tamiya Man

04-12-2004, 05:26 PM

lol...the wierd thing at the track was that lots of people thought it was an x-ray...one question though, do different brands of the same body have different performance advantages? For example, does the hpi dodge stratus handle any different than the protoform, trinity, losi, or andy's stratus??

Tamiya Man

04-13-2004, 04:32 AM

does anyone have a rought estimate on how much the ob4 wieghts? Is it above or under 52 ounces...i am wondering, becasue my car came with aluminum bulk heads(i think thats what they are called) and i also have some molded ones, and want to know if i would be under the "legal" wieght if i put the molded onces on.
also, to check ride hight, do i check it while the shocks are fully suspended, or when they are compressed?

Tamiya Man

06-16-2004, 12:15 AM

Today i broke an out drive, i was so mad. My first practice run, and im out of running the entire day. It was terrible. Where is everyone else??

henry_huckem

06-16-2004, 12:49 PM

Tamiya Man

06-20-2004, 02:22 PM

Really? After asking around other places, and after seeing everyone else compress their suspension to check ride height, thats what ive been doing.

Dinternetman

07-17-2004, 10:39 PM

I guess it's my turn to ressurect this thread again.

Tamiya Man: I could get the weight for you but the thing is i don't really have an accurate scale, it measures in pounds. Also I would need to know more information about what to weigh the car with (batteries, wheels, etc.)

To Kenny T or The in Kid: You guys mentioned that you were able to find parts or at least find a website for parts. I'm looking for a front suspension support ( i think that's what you call it) Could one of you guys help me find one?

Kenny T

07-17-2004, 11:32 PM

You mean shocktower? I know Stormerhobbies has some parts. I'd say your best bet is Hong Kong or somewhere that stocks LD3 stuff. Supension Components are interchangeable between the LD3, OB4, Nitro OB4, etc so you might want to take a look at LD3 parts.

I we have a LHS which has a lot of Ofna/Hong Nor stuff so I can get it from there.

YR4Dude

08-04-2004, 04:26 PM

Hi,

I 've got an OB4 International chassis that's lying in parts. All it needs are new shocks and ball ends and a swing arm shaft and it can be up and running. Problem is that I have too many other cars to deal with and I don't have time. Should I keep it and restore it or should I sell it? If you are interested, make me an offer by sending me a message.

BTW, LD3 and Nitro OB3 are compatible for suspension only. Nitro OB4 and OB4 electric are only compatible from the suspension arm to the wheel, plus the front & rear bulkheads. Shock towers are not compatible because of the difference in width between the nitro and electric.