Ofna Ultra GTP

[AllAboutOFNA]

I just got my lutra GTP Could someone tell me the limit of hop ups that are available for this model :D

Thank You :confused:

[Unregistered]

The first things I would get are the 2 speed & the heavy duty diff gears Part# 31010. The stock ones won't last long. Ofna makes a lot of hop-ups for it

[AllAboutOFNA]

Does anyone know the best esttings for a 2 speed in an ofna ultra GTP ?????:rolleyes: :confused:

[Unregistered]

If it's the clutch type, turn both screws in all the way & back them out 5 & 1/2 turns each. This will get you in the ballpark

[AllAboutOFNA]

Thanks for the info , i"v been out of the R/C world for a while i"m just getting back into it . I hate going by factory tuning it's always + or -- 30 % , actual users of the products always know the optiomal settings ( well usualy ) :D

[Archerboi]

I was wondering, is this a new platform? Or is this based on the Ultra platform? I was thinking of getting one. Either this or the Landmax. Which one is better? Thanks.

[AllAboutOFNA]

I opened this thread to talk about the Ultra GTP , on custom made hop ups , and performance tips , parts that were interchangable with other manifacturers ! !! but you may post what ever you like :D :D :D :D :D

[kiwi49er]

Anybody got a line on GTP body's that arn't prepainted?

Or at least a retailer who doesn't charge $50 for the prepainted version?

Also is is possible to replace the first gear in a 2speed tranny? I just baught a car with a stripped gear. Or do I have to replace the whole tranny? If so where do I get the parts.

GTP parts seem hard to find with the exception of Nitrohouse. Any Suggestions?

I know I am going to love this car. The wrench time is going to be so worth it.

I am also going to need a Gas Tank and Right Front Lower Arm, Then I am up and running. The rest is TLC.

[kiwi49er]

TTT

?

[ecatbox]

ace-hobbies.com carries a lot of ofna parts also...i believe the 2 speed spurs are all sold separately, just watch you don't get the monster pirate ones by mistake...the gas tank and a-arms are standard GT LX/MBX parts i think...and i haven't seen the bodies sold unpainted

[kiwi49er]

Thanks a bunch bukakke. I live within driving distance of ACE.

I might walk in with the car in question and they can specify the parts.

I also smashed my Monster Pirate front end this weekend so now I have 2 reasons to visit.

Sometimes I smile after a crash because it results in my favourite pasttime. Rebuilding :) :D

[ecatbox]

i haven't seen the celica bodies for sale separately yet, but they look pretty cool

[RcLaB1]

hello, i'm planning to get the

RTR Ofna Ultra GTP w/maclaren bocy......

how fast is the car stock?

with the 2speed?

and what other upgrades will make it faster?

i'm basically going to use it on parking lots?

thanks

[AllAboutOFNA]

I would say that the GTP does about 55 or 6o out of the box . I love the 2 speed tranny
Iwould have to say that the tranny rockets it to a steamy 70-- 78 Mph once you fine tune the tranny you'll love the car , I also recomend the C-vec pipe . I run 35% nitro and the car could almost get up and smack you I swear . LOL ! then there's alweays differant gear combos ! ! I highly recomnd the GTP 1/8 scale is so easy to tune and adjust the suspention ! ! Oh yeah i almost forgot if you do get the car RTR locktite all of the screws before you use it , it will save you time rather than doing it after they fall out ! ! ! Hope This Helped

[RcLaB1]

thanks for the reply,

out of the box, it really does 55 to 60 mph??????

and with the 2 speed,,,,you say around 70mph?????

thats sounds very fun and interesting to me......
yes indeed......

i would like to ask you, can you give me some
gear ratios on a stock GTP so that
i can have a blast cruising it up and down a parking lot.

i plan on getting the 2speed later......thanks.....

RCLAB1

[AllAboutOFNA]

I personaly haven't changed or gotten into gear s , I find the stoc ones to be a great balance ! I do however recomend the steal gears there much more durable

[nitrogator]

I read a review in a RC car magizine right when the GTP came out and they radared it at 41mph with the stock P4 engine. There is now way that this car can go 70mph with a 2 speed, it's way to heavy. A friend of mine has a Mugen MRX-2 onroad which weighs over two full pounds lighter and we radared it a 63mph running pretty rich. It could have been leaned out to get 70+ mph and he has a JP team modified .21, but we were just messing around. The GTP will realistically get 50+MPH with a strong .21.

[IRstaypuff]

Ofna GTP improved With the Force .25

http://www.angelfire.com/theforce/25nitro/index.html

Take a look


http://www.angelfire.com/theforce/25nitro/images/10.jpg

[Lost Racer1]

The GTP is based on the Ultra MBX platform. With the short shocktowers, bumper, and no center diff.

[spenzalii]

Ofna GTP improved With the Force .25

Now, did you install it, or did the Porshe GTP set come with the .25? If so, it's a no brainer to get one

[IRstaypuff]

it came with the .25 :D

[spenzalii]

Snap! Good deal. Where did you get it from? I think all the LHS around here have the .21, and I don't want to order one and have the .21 in it if I can have the .25

[IRstaypuff]

This is the store


http://www.ultimatehobbies.com/catalog.cgi


i think they wanted 329.00 for the .21

[spenzalii]

So did you call and ask for the .25, or was it just a pleasant surprise when you opened the box?

[IRstaypuff]

No the picture on the outside of the box was change to a .25

Ofnas web site does not show a change ( ? ) Slow I guess

[morfracerX]

What all bodies will fit on the GTP? i need a body but i dont know what will fit besides the ofna ones (and where can i gfet those by the way? besides ace

[racewithmepleez]

what else do I need to convert the ULTRA GTP to a buggy
besides buggy tires and shocks?

or maybe to a RALLY car... my streets really bumpy..

[spenzalii]

Methinx the shocks are the same on the buggy and the car; it's the shock tower that you need. It will allow the shocks to be placed in a more horizontal position. Check the Ofna Buggy forum for the conversion from buggy to car and flip it.

[Lost Racer1]

You will definiately need the shocktower. And if you decide you really wanna keep it offroading you can pick up a center differential for it for proper power placement.

[wolfy2386]

does anyone know if you can use the rear CVA joints with the rear pivot ball kit?
BTW I have a GTP with a two speed and a hyper .21 engine and all i can say is it is insanely fast but also for a car of its size and weight handles quite well (In my opinion as the only touring cars I've driven are this and a HPI Micro RS4). If u really want a car that goes 80 get a proceed or something otherwise I would suggest the GTP as it is extremely durable, and is definitely worth the money.

[spenzalii]

I was thinking of the rear suspension swap and the two speed. It probably won't do 80 (too freekin' heavy), but how quick do you think it'll go? Especially with a stronger .21 (Sirio, anyone?)

[Wayward]

I have a line on a kit with one of these that seems to be pretty cheap.
But I haven't done anything with RC cars for about 17 years, but I have been debating getting back into them.

Is this a decent car? If so what should I expect to pay for one in a box kit?
It has never been used, only used for display in a hobby store.

It has the stock .21 engine and an Airtronics radio with it.

Any input you guys could give me would be greatly appreciated.

Btw it is the McLaren Part #34315 if that helps anyone on their info.

Yes my local shop does stock parts for it, I have looked a little lately as I would like to get a new car.

I can pick up this deal for around $250 I think, and everywhere I have looked it is usually around $350 and since it has never been run it's not a bad deal.

I will mostly just be using it for putting around mall parking lots etc.
Maybe might do some stuff in the future, but I have to see if I can get back into it again.

So let me know anyone if you think this car is good or bad for that price.
It is ready to go, I just need to add fuel to it, everything else comes with it.

Thanks ahead of time everyone,

Wayward

[Gruven]

Originally posted by AllAboutOFNA
I personaly haven't changed or gotten into gear s , I find the stoc ones to be a great balance ! I do however recomend the steal gears there much more durable

They have Steel spur gears? Do you happen to have the part numbers? I keep stripping my 1st gear.

[Gruven]

Originally posted by Gruven
They have Steel spur gears? Do you happen to have the part numbers? I keep stripping my 1st gear.

Anyone?

[save1992]

i want one of these are they durable how fast do they go are they easy to work on who has the best price on them

[save1992]

no replys no comments in over a month this thread is dead:mad: :( :rolleyes: :eek: :confused:

[Toyotatogo]

I need help guys..... I need to know were can I purchase some on-road rubber belted tires????

http://www.radiocontrolzone.com/forums/showthread.php?s=&postid=1107002#post1107002

[Toyotatogo]

Geez?:rolleyes: This thread is dead........ So is OFNA and their supply of ready parts .....:confused:

Sheesh out of 805 parts only 24 are in stock to purchase what kind of b/s is that????? Is OFNA going out of business?

[The King]

Originally posted by kiwi49er
Anybody got a line on GTP body's that arn't prepainted?

Or at least a retailer who doesn't charge $50 for the prepainted version?

Also is is possible to replace the first gear in a 2speed tranny? I just baught a car with a stripped gear. Or do I have to replace the whole tranny? If so where do I get the parts.

GTP parts seem hard to find with the exception of Nitrohouse. Any Suggestions?

I know I am going to love this car. The wrench time is going to be so worth it.

I am also going to need a Gas Tank and Right Front Lower Arm, Then I am up and running. The rest is TLC.

I found a unpainted body from my LHS but the cost was $52.00 so if you are going to paint it yourself don't mess it up:D Here is what I did to mine:cool:

[mtrsprt]

A stock GTP will do about 35-38mph bone stock. With the addition of the standard geared two speed transmission, 50mph is possible. Youd need about a 2.8+HP engine and a really tall 2nd gear, along with a 300' straightaway to get that pig over 55mph.

[The King]

I have the GTP and I want to know what everybody that has one what they are running for a glow plug and what %nitro they are running

Thanks

[Rellik R/C]

I have the Force .21 (BLUE HEAD) and I am running a Duratrax GOLD (COLD) plug with Sidewinder BackYard Basher 20% with the 16% Lube. I can really tune it to run lean enough to get good speed but yet Rich Enough to keep it cool. I am averaging about 250-265 during a 5 minute heat or main.

I am not too pleased with OFNA as far as the box saying its a .25 engine.. but its packaged with a .21. Then when I called them for tech support they really didnt know thier own products. They told me it was a Force .25... but its not the BLACK Head like some of my buddies have in thiers... it is a .21. SO.. make sure you know what engine you have and ASK OFNA or NITROHOUSE to find out what plug you should really use. Cold or Medium should be fine.

Good Racing

Rellik

[Rellik R/C]

I dont even know where to post this??? I just added 7,000 diff lube to the front diff assembly.. but it leaking out of a gap in the front!!!!!

How and where do I add this??? DId I screw it up??? If so... please let me know. Thank you!!!

Rellik

[The King]

Does anybody have a link to where I can order me a body for my GTP? I am looking for the celica body.

Thanks
D.King

[Gyro Gearloose]

Nothing more? I see these are still for sale, are parts available? Is it junk or not?:confused:

[wolfy2386]

Anyone use stiffer springs for their GTP? If so do u have the part # for those springs?

thanks
Wolfy

[The King]

Here is my Bruce Lee GTP, What do you thing? By the way I painted this myself

[The King]

Here is the reason why I call it my Bruce Lee GTP.

[erikbenz]

:cool: i have ultra gtp rtr and it came new in the box and it had a purple cooling head does anyone has one that came with one and the guy at the store
told me that it goes 80 miles per hour is that true guys :mad:
:eek:

[erikbenz]

what engine does it come with because I got a force .26 big block is that the right engine

[Saboteur]

The GTP's as far as I know, come with the Ofna Force .21. It surely won't go no where near 80mph. If he really told you that, you should have smacked him. ;) j/k. Like it was said before, a good 38mph or so out of the box. With a more mild racing engine, expect more overall power than the stock. The powerband of engines are different. HP and RPM settings don't really mean a thing nontheless they are all false. :) If you have the Force .26 big block, expect awesome acceleration from your GTP.

[darncars]

my kids rc10 nearly tied me in a drag race.updating this forum uno.oh ya having a hard time finding bashing tires and wheels with spinners.ideas anyone? peace..(ps)burn rubber

[Saboteur]

Pretty much Ofna's and I think Kyosho may have tires that work on the GTPs. That's it. I didn't go with one due to the limited tire selection. Also spinners so far have only been made for nitro sedans and the Monster trucks.

[jerseyevo]

how is everyones ultra gtp's doing?
i just bought a brand new one with the force .25 engine and i also installed the 2-speed tranny and love it.
i might even sell off all my 1/10 cars to buy another!

[jerseyevo]

http://www.******.net/img/43181

[jerseyevo]

http://www.******.net/img/43181

[NWDave]

Neither of the links work. I thought they didn't make the Force .25 anymore, are you sure it's not the .26?

[jerseyevo]

i am positive it is the force .25.
has the black head and it says force.25 right on top.
http://www.******.net/img/43181

[jerseyevo]

trying to post the pic dont know why its not coming up?
if u you use the same addy and type in ****** where the stars are it will work.
www.******.net/img/43181

[jerseyevo]

http://www.******.net/img/42817

[Saboteur]

Why don't you attach the image instead? No matter what you do the "RC PICS" won't come up in the link because it's banned from the site. The old force was a .25, but now they have the Force .26. You can find better engines that both with more power and more reliability.

[jerseyevo]

Why don't you attach the image instead? No matter what you do the "RC PICS" won't come up in the link because it's banned from the site. The old force was a .25, but now they have the Force .26. You can find better engines that both with more power and more reliability.

it was the engine that came with the car when i purchased it new,
i plan to upgrade to the wasp .26 but i am still doing research as to a definate chioce.

[ofnaGTP26]

I have a an Ultra GTP with a Picco .26 in it and two speed. Im interested in converting it to a rally car. I searched this forum, and came up with nothing. Only thing I can think of is, buggy tires and wheels and lifting it a lil bit. Any ideas on how to lift it. As soon as I do the conversion,or even before..I might have some vids of me clocking the speed in a car.

[Saboteur]

Honestly, this class is almost on its way of being dead just like the HPI Super Nitro class. On the forums here they are pretty much shot. Very few people come in. Anyway to make it a rally, just add buggy tires and longer shocks. Experiment with the springs and shock weight oil to see what makes your ride handle better and give the most traction. To give ya a start, you pretty much don't want a too soft of a setting or really hard. My suggestion is to start out with 35-40wt all around and Kyosho blue medium springs.

[darncars]

Careful.raised mine for somethin to do and threw a dogbone!

[Saboteur]

Yeah, might wanna invest in some CVDS and becareful of how much you raise it.

[PCC]

I'm trying to convert my old Worlds 2 into a GTP-type car since I can't give it away. I'm undecided as to whether to do it with the GTP body or a stretched body like the Hyper-based 1/7 scale car that OFNA is rumoured to be coming out with.

[gtracer32]

what is the bearing size for http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBXX1&P=7

[gtracer32]

between http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBXX1&P=7 and http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXCWK5&P=Z :D

[jerseyevo]

here ya go..
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXBZB4&P=0

[gtracer32]

thanks guy.

[jerseyevo]

heres my gtp next to my wifes hpi rs4 evo.
http://www.******.net/img/46682
http://www.******.net/img/46681

[richkay228]

I was thinking of the rear suspension swap and the two speed. It probably won't do 80 (too freekin' heavy), but how quick do you think it'll go? Especially with a stronger .21 (Sirio, anyone?)


I GPS'ed my GTP at 52 mph with a Wasp .28, 2 speed with 17/21 pinions. No way will a current 7lb. GTP with the huge "windsock" bodies will even crest 60mph let alone 80!
Rich

[dcshoelover]

Man is this place Ghost City :eek: I just got an Ultra GTP with the CLK body and the Force .25 This is the first 1/8th scale car and big block engine I've ever owned. I was wondering what glo-plug to run in this? And also if anybody found clear body's yet? You might as well just buy a new kit to get the clear body!!!!
http://img.photobucket.com/albums/v419/tha_hoodie_monster/GTP2.jpg

[TpTPlayer83]

I just bought a Ofna Ultra GTP RTR, and ordered a Orion Wasp .28 engine, THS racing pipe, front and rear CVD's, Two speed tranny and steel bevel gears and two vrey high torgue servos. Is there anything else I can put on this to make it faster? And how fast will it go with this set up???

Thanks
Jeremy :)

[dcshoelover]

Sheesh that must have been a big tax return!!!

[Saboteur]

Sure to top 50mph thats for sure. Get good acceleration too :). It's still quite heavy, which is why it wont accelerate like no real 8th onroad. However, it will still be fast.

[dcshoelover]

Now if Im reading this correctly, OFNA has 2 two speed units. Both say that they will work for the GTP. One has just the gears and bell for 99.99, pt.#35001. The other has the whole housing unit and everything for like 74.99, pt.#35011. Anybody bought the cheaper one and used it? Why would they do this?

[darncars]

Does anyone really need-can-have to go 50+ m.p.h.? My 1 speed gets me in enough trouble!

[dcshoelover]

Well the car's gunna go 50 regardless of a 2speed or not. It just helps get it there quicker. 2 speeds don't necesarily add mph to it, maybe a few tho. There was a guy selling a GTP on ebay last week claiming he got it 92 mph :eek: I asked him what he did to get it that fast and he replied something like adding a 2speed, a .26, re-working the gears, lowering the cg, and lightening it. Maybe he had his radar gun upside was down and it was actually 29 :D

[darncars]

I allready have to throttle carefuly to keep from spining out. Wouldnt a 2sp make it worse? Keep on road alive!!!

[Saboteur]

92mph? Yeah right. :rolleyes: What a trip! A 2speed won't make things worse. 2speeds are great, just require more maintainance as you have to set it up in the car properly and then tune it.

[darncars]

A worthwhile mod then Sab or just fluff?

[PCC]

Now if Im reading this correctly, OFNA has 2 two speed units. Both say that they will work for the GTP. One has just the gears and bell for 99.99, pt.#35001. The other has the whole housing unit and everything for like 74.99, pt.#35011. Anybody bought the cheaper one and used it? Why would they do this?
The 35001 is the older style two-speed that uses a finger catch design. The 35011 is the newer, two-shoe, design. I would go with the 35011 as it shifts smoother and isn't as prone to damage if you use a powerful engine. Where did you see it for $75?

[Saboteur]

A worthwhile mod then Sab or just fluff?

More fluff to ruffle the feathers a bit. :D

[quicklimegirl]

Anyone run these lead-sleds anymore?

[Saboteur]

Anyone run these lead-sleds anymore?

LOL. Good name for them, but they are heavy as hell and no way can touch the speeds and acceleration of the true 8th onroad cars with the SAME engine. I've seen a few people with them, traxxas nitro stampedes, and other older cars, but I sure wouldn't run one.

[PCC]

Ultra GTPs make better bashers than 1/10 scale touring cars. This is because the GTP has a higher ground clearance and the shaft drive is impervious to pebbles and stuff. I'm surprised that more people don't run these.

[Saboteur]

They don't because they are converted Ofna GT LX buggies. Quite a few things have been changed from the buggy to make it. ALso with the popularity of nitro sedans, 8th onroad, and electric BL systems, why bother with something so... old?:)

[dcshoelover]

I got one because they're easier to handle for bashing. Big dips and cracks just annihilate 1/10 on roads, but the GTP just keeps on truckin. It's noy often you find a perfectly cemented parking lot, and at 50 mph, little cracks and what not make for some good acrobatic shows out of lightweights.

[quicklimegirl]

Sorry Sabatuer but PCC and DCS...get the point. This is high-end bashing.

[Saboteur]

Sorry Sabatuer but PCC and DCS...get the point. This is high-end bashing.

I know :rolleyes: . Just saying that for "high-end bashing", there's more fun stuff out now. :)

[quicklimegirl]

Whats a comparable big-block newer basher?

[Saboteur]

For a fewer yrs back, the Kyosho Landmax II was and still is a better ride. For bashing around, people use stadium trucks, monster trucks, and buggies to bash. You don't need a BB for fun. Anyone of them can be big block powered or even small block powered and can win in the category of durability and speed. I'm not bashing them, but just saying just like the 10th onroad class (235mm) it died. :( The super nitros are still even more popular. My friend has one(a GTP), but he's considering of getting rid of it. It's hard to find people to race them is the thing and there isn't a class for them. As for parts I'm not sure if any of the newer parts for buggies will work on that car. If it does, awesome, but if not, too bad.

[quicklimegirl]

Yes I MUST have a B.B. to have fun. I dont care much for organized nerd racing. My idea of fun is firing her up when theres people outside the l.h.s. running or trying to run thier baby buggies and do smokin doughnuts and sliding U-turns and generally just being a jerk. OFNA parts are hard to get for any model cause they dont service the lhs very well. Hows it goin?

[Saboteur]

Well I'm not much an orgazined racer myself, but I did race and it is fun. It's fun to go crazy, spin around and stuff, but once in a while it would be nice to duke it out on the track. For me my BB picco is kewl in the buggy, but probably would be more interesting in the MT. Aside from that, my R40 has the Rody V12 and for its weird break in setting it's producing SERIOUS power! It revs about as much as my MT12 would rev when just messing around with it. This engine had GUT loads of power and I can't wait to hit the parking lot with it!:D Btw I'm doing fine:) you?

[quicklimegirl]

I am well! I just like the sound of BBs. Kinda makes SBs sound like a toy. I do have other than 1/8 stuff.

[Saboteur]

What kinda cars do you mess with? I have the R40(SB), MGT(BB), HB lightning buggy(BB), and TL01(elec..may sell it..) :).

[quicklimegirl]

Keep a secret?

[Saboteur]

Sure I can keep a secret :). Sry, but I went to work.

[PCC]

I tried racing but the closest track around here is an hour's drive and it's hard to plan a Sunday to go racing for an entire day. The wife gets mad at me and that's no fun, neither.

Around here, even my freshly paved street out in front of my house can be a nightmare for my 1/10 scale touring cars. There's an occasional splotch of asphalt where some spilled off of the truck and it set. This is just 3/8" tall, hardly noticable but it will send any 1/10 scale touring car or 1/8 on-road or SuperTen flying. Buggies, stadium trucks, and monster trucks can handle my street, no problem, but their off-roading chassis don't turn very well or they roll easily. Most parking lots around here aren't very forgiving to anything with less than 1/2" of ground clearance. That means that I can run my XB8, my monster trucks, or the car that I'm building into an Ultra GTP.

As long as you stay with the Ultra series the bulkheads, center diff, and some of the chassis are the same. The suspensions are interchangable between all of the Ultra series cars. This means that you can switch to C-hub suspension or the pillow-ball suspension of the MBX, to the cheapo suspension of the Ultra GT.

[Saboteur]

9mm or 10mm of ground clerance and a slightly softer suspension setting rolls over any small bumps and cracks in our lots. ;) I just fly right over them with no problem and the car doesn't even flip. :D Only time I broke my car was when I gave the transmitter to a newb who isnt even into the hobby. Destroyed most of the front end by sliding into a car tire.

[quicklimegirl]

Pretty good home-page Mr.

[Saboteur]

Thnx. :) I'm gonna update it with new photos soon.

[richkay228]

Well the car's gunna go 50 regardless of a 2speed or not. It just helps get it there quicker. 2 speeds don't necesarily add mph to it, maybe a few tho. There was a guy selling a GTP on ebay last week claiming he got it 92 mph :eek: I asked him what he did to get it that fast and he replied something like adding a 2speed, a .26, re-working the gears, lowering the cg, and lightening it. Maybe he had his radar gun upside was down and it was actually 29 :D

Sorry,
a stock single speed GTP will NOT do 50 mph. 42ish in peak tune. I have GTP, with a 2 speed 17/21 pinions, I also have the optional hi speed spurs (I can't remember the tooth count) I have an XTM 24.7 Pro (a real screamer of a big block) I GPS'ed my GTP at 53 mph. Thats PLENTY fast enough for a tank GTP with not so good handeling!
Rich

[dcshoelover]

Right, Im just saying, like most of these touring cars out. They'll do 50 mph or 42 mph whether they have a two speed or not. The two speed is just gunna get them there faster.

[Saboteur]

A two speed can add upto 10mph depeding on gearing. That in stock configuration. The speed in either first or 2nd all depends on the ratio. A single speed can can easily go over 50mph. A 2speed isn't always needed. However, in the situation of a drag cars with two similiar cars (same equipment and top end gear ratio), the one with a 2speed will be faster offline and upto speed rather than the single speed car.

[richkay228]

Ultra GTPs make better bashers than 1/10 scale touring cars. This is because the GTP has a higher ground clearance and the shaft drive is impervious to pebbles and stuff. I'm surprised that more people don't run these.

I totally agree! I have my GTP, and I also have a 1/10 HPI RS4 3. Overall I like the GTP better, its FAR tougher, much more scale (WOW) factor, much easier to work on, takes any big block from .21-??. Ultra MBX parts are dirt cheap on ebay even though it's 1/8 scale. I run as high a ride hight as possible to swallow up parking lot cracks. Even at 45+ mph it's very hard to roll a GTP, they will power slide long before they roll (which is a good thing bashing). My RS4 will obviously run circles around my GTP handeling wise, until we hit some cracks and pebbles (which ALWAYS sends my RS4 flying sideways/verticle.
Rich

[Philster]

I finally got to see some GTPs and they look like a hoot. Definitely hit 50+ and seemed more 'something' than 1/10th cars.

Once you get to 50, who has time/space to get to 60, etc.

I wish their was more GTP support out there, and more chatter. Would make it easier to buy one.

(Question: Most GTPs now come with a .25 or .26??? Yet the .21 is still out there new??)

[Saboteur]

The newer ones come with the .26 engines. If I were to get one, I'd scrap the .21 or whatever engine and toss in my Picco .26 :D. The stock engine can get to 50mph if geared up a bit, but it's not that fast on acceleration. For it's size, it's fast. The GTP will take parts from the newer LX and MBX pro models. This is good since some people still take interest in the GTP and choose to buy one-they won't be out of parts support for a while. Ofcourse it all depends on how easy it is for your LHS to get Ofna parts. Mine can get them, but som e things just seem to always be on backorder.

Philster-8th onroads can achieve 60mph in 3 seconds or less. The acceleration is unbelievable on those, but the GTPs can't do that due to gear ratio setup and weight. It takes nitro sedans and trucks longer to get to 60mph.

[richkay228]

I finally got to see some GTPs and they look like a hoot. Definitely hit 50+ and seemed more 'something' than 1/10th cars.

Once you get to 50, who has time/space to get to 60, etc.

I wish their was more GTP support out there, and more chatter. Would make it easier to buy one.

(Question: Most GTPs now come with a .25 or .26??? Yet the .21 is still out there new??)

To get a RTR GTP to 50 mph will take a 2 speed and a torquey race .26. My gtp came with a force .25. A comendable mill, but with 14/48 gearing, 50 is mathematically impossible. Braking is another issue. I have a slick triple brake setup using 3 GTP steel rotors, I also have a hi-torque servo (mandatory on a heavy GTP). The strong point about the GTP's is the high speed stability, they drive so perfect at high speeds, they don't have any of the 1/10 "twitchy" feel at 50+ mph. I paid all the money for mine 2 years ago ($380), now they can be commonly had for $275 on EBay.They need some initial mods, (but what car doesn't?) once all dialed in they are WAY too much fun! I even went as far as to pull my rear dogbone out!!! Talk about hilariously funny bashing!! I am at my work computer, but I will post up some pics of my Custom GTP tonight.
Rich

[Saboteur]

If your car is twitchy at 50mph plus, time to work on the setup. ;)

[dcshoelover]

Ok, i've been looking around for an affordable high torque servo for steering duty, and am debating on the futaba s3305, and the hitec 645. ANybody have any better suggestions or opinions on these? Also, a rechargeable battery pack, what fits, and what's a good company? And is that little tiny ofna failsafe dependable? As you can see I've got some plans here, but im trying to stay as cheap as possible.

[Saboteur]

Both of those servos are good. I have the JR 650MG. It makes .140oz torque at .17 transit time. A bit faster and stronger than the hitec 645mg. The ofna failsafe seems pretty reliable.

[dcshoelover]

Are you running aa batt's or a rechargeable pack?

[Saboteur]

Rechargables all the way. :)

[dcshoelover]

What kind of pack do you have?

[dcshoelover]

Another thing. I can't find jr servos anywhere. Where are they sold???

[Saboteur]

I run Ofna packs. Stick for my onroads, hump for my offroad. Check your LHS or Horizon Hobbies for Jr stuff.

[dcshoelover]

Where do you fit the stick pack on it?

[Saboteur]

Both of my cars the pack is in a compartment right under the fuel tank.

[Andrew149]

I finally got to see some GTPs and they look like a hoot. Definitely hit 50+ and seemed more 'something' than 1/10th cars.

Once you get to 50, who has time/space to get to 60, etc.

I wish their was more GTP support out there, and more chatter. Would make it easier to buy one.

(Question: Most GTPs now come with a .25 or .26??? Yet the .21 is still out there new??)

it comes with the force .25 with the viper and porsch and the others bodys with the .21 engine :D

[richkay228]

Ok, i've been looking around for an affordable high torque servo for steering duty, and am debating on the futaba s3305, and the hitec 645. ANybody have any better suggestions or opinions on these? Also, a rechargeable battery pack, what fits, and what's a good company? And is that little tiny ofna failsafe dependable? As you can see I've got some plans here, but im trying to stay as cheap as possible.


It's all about money, money, money!! The upgrades/ hop-ups never end. Before you know it your GTP's has cost you $600. I spend silly money on nitro RC, and have no regrets! I don't smoke, so I look at it as having $5K a year to spend, and I won't die from cancer. Heres my suggested way to upgrade your GTP from bone stock:

1) engine temp guage!! ($20 guage will save your $150 engine many times)!
2) 6V hump batt pack (fits in the RX box slick, and sends WAY more power to the servos) $20
3) Ofna micro failsafe $20 (GTP's are heavy, a runaway will spell DISASTER)
4) High torque steering servo (I like Hitec 645's or 5645's if you can spend an extra $13) $36 and $49
5) High torque brake servo (so you can slow down quickly!)

[PatgBashrrr]

I could recommend a few upgrades.
1. Temp Gauge!!!!!!!!!!!!!!!
2. Sportwerks engine .26 7 port. Roasts all 4 tires at any speed.

I agree with ya'll this thing is a basher, a tire eatin, gas guzzlin basher. heavy as sin, but a pile of fun. Got mine for 120.00 at the hawk shop:D. Only put in the .26 cause it ranaway on me and flipped on its lid and revved to death.

[dcshoelover]

I've got the ofna failsafe now. And I also got a Hitec 635HB servo. It seems to work pretty good. I was thinking maybe the Duratrax flashpoint guage. ANd hwabout the trinity nitro packs? Also what kind of charge do you need for that?

[Saboteur]

I went with one of the best chargers for the buck and that was an Integy 16x4 pro charger. It charges all small packs, 7.2 packs, and even my starter box battery.

[quicklimegirl]

Oops!

[quicklimegirl]

Oops!
I did it again*

[mufasa_719]

Well the gtp 2 is out now based off of the lx one. What does everyone think of this? Looks like it changes for the better.

[CurveTracer]

Has anyone heard any news regarding the Force .28 engine??
I wonder how it compares to the Kyosho .28 installed in the Inferno GT?

[vad]

Has anyone heard any news regarding the Force .28 engine??
I wonder how it compares to the Kyosho .28 installed in the Inferno GT?


Pass on those engines, just get an OS .28 XZ the first time and be done with it.
http://www.osengines.com/engines/osmg2074.jpg

[airega1]

There has to be a way to get a Lola or Audi 11 etc. to fit a GTP

[CurveTracer]

What are you racers using for stiffer suspension springs?
The DM1 springs look like they are too short to work on the GTP.

[EZM]

The GTP sucks whoooooh

[XXWoodmanXX]

EZM,

I've reported your post to mods/admins. Grow up and keep your childish comments to yourself.

[andystoybox]

Ditto, Shmitto.