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Old 12-21-2003, 10:04 PM   #706
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Old 12-21-2003, 10:26 PM   #707
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Default Yokomo GT4 RTR

Hey guys. It is time I look at a new nitro sedan and have been thinking about a Yok. If I get it, I'll ditch the stock radio and use my XR2 w/rx. Few questions. Besides durability and handling, which I know is pretty good, how reliable is the stock .18 engine? How is the RTR's acceleration compared to other stock RTR nitro sedans? Does itreally hit 60mph? I've heard in the past it went about 45mph, which is kinda to hear though. I remember a while back when I bashed with some dudes in the city who ran yoks. One powered by an MT12 turbo and RB X12 5 Port turbo in the other. Both really screamed. The Mugen engine did seem to have a more smoother acceleration while the RB launched hard. They would have handled better if we were on the track though. Using both foams, both cars slide around quite a bit on the lot. My NEO did handle a lot better, however it was no where near as fast as those cars. Also I had rubber tires on my sedan.
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Old 12-22-2003, 12:43 AM   #708
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The GT4 RTR will be just as capable as any other RTR out there, a friend of mine who bashes has one, and loves it. I have never cared about the top speed of the car, but I'm sure its as good as the others with the 2 speed. From his experience, the .18 is very reliable.
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Old 12-22-2003, 12:44 AM   #709
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Does Yokomo have a single speed gear/shaft for the GT4? The parking lot tracks around my area are too short for a 2 speed, and I figure if I am gonna lock out the 2'nd speed, I might as well kill some rotating mass while I'm at it...
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Old 12-22-2003, 08:19 AM   #710
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Just get the high response pulley set. That should raise the internal ratio to 2.55 the thing with this is it has overdrive
that requires 4mill tire split.
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Old 12-22-2003, 10:07 AM   #711
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Yeah, I'm really looking into it. Also I do have electric onroad racing on Saturdays held at our HS here. I may sell my Neo TNT and TL-01 to my friend if he wants to buy it and then with the cash, try to see what I should buy first. If I want to race in the electric class, I need a electric car. My TL-01 is great but I'd prefer a more racier car thats also lighter and with the monster stock motor, be a lot faster. I had the monster in my Tamiya and while driving it today, it wasnt all that fast. I felt it could be faster so I'm thinking with a lighter, more drivetrain efficient car with a change of gear ratio will make it faster. Still Nitro Racing will come around spring and I'd have only a short amount of time to get something ready. The TC3 racer kit may end up being bought first before the yok. The weather here is hanging around 38-45 degrees. Its pretty decent to bash around with the nitro's. The yok is pretty attractive and I like its handling. For foams, is it true it will work with 26 or 28mms all around but no 30mm? I'd have to use 32mm correct?
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Old 12-22-2003, 10:52 AM   #712
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the yokomo will accept a 30mm tire width but you need to
buy a wheel with a 2mm off set. Yokomo makes it and nitoshoes
makes an offset wheel also.
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Old 12-22-2003, 12:39 PM   #713
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Quote:
Originally posted by jwf_frani
Just get the high response pulley set. That should raise the internal ratio to 2.55 the thing with this is it has overdrive
that requires 4mill tire split.
I still just dont like the shift, seems to shift at the most inopportune times through the infield...
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Old 12-22-2003, 01:10 PM   #714
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I don't know if anyone actually makes a single speed shaft
but you could just lock out 2nd but you might have to find
and pinion and spur combo that is tall enough for the main
straight but low enough to give you good accel. coming out
of corners.
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Old 12-22-2003, 01:39 PM   #715
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A trick we use for the really short tracks is to get a modified shaft from smitty which allows you to fit the old Serpent gearbox to the Yokomo and use the Centax 1 with the 12/16 bell. This gives a great deal of acceleration and gear change is no problem in the infield.

With the quick response set added the car will be real nippy out of the corners too.
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Old 12-22-2003, 01:54 PM   #716
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the reason the high response pulley can feel like that is because
it has an overdrive not unless you go to a 15 tooth pulley which
i use of an electric car or you could go with a 4 mm tire split.
and your front to back roll out should be even.
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Old 12-22-2003, 02:02 PM   #717
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Very true.

I normally run with front and rear tires equal diameter and the 23T front side pulley to create a lot of overdrive to pull the car around the twisty short tracks. Many people dont like this method but it suites me fine due to not using brakes at all. Once you start driving this way and learn to control the steering with the throttle the lap times will really fall.
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Old 12-22-2003, 03:31 PM   #718
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Cool. Thnx for the replies all.
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Old 12-22-2003, 04:28 PM   #719
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harkonen the gtr rtr2 should be the best equiped rtr right
now. it comes with a 2speed aluminum pipe w/rear exhaust
so that should cover most of your needs as for speed.
the chassis is as close as you can get to the pro version.
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Old 12-22-2003, 07:17 PM   #720
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Exactly what does the aluminum front side pulley do? I been using it and it handles good, but someone told me that its for high speed tracks, is there any truth to that?

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Steven Muller
MPP Palmaris racing
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