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Old 02-07-2006, 03:54 AM   #211
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Quote:
Originally Posted by Bundy_Bear
Does the RTR version of the GPX4 come with a Hyper 12 in it? And is this the same engine Ofna have on their website claiming to have a 1.4hp output?

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Have a look at this site for the specs on the rtr vervion.
http://www.hobao.com.tw/EN/viewitem1.asp?sn=516#
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Old 02-11-2006, 03:53 PM   #212
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Quote:
Originally Posted by C Verano
You can use the Kawahara 2-speed housing and one-way for the MTX-3.
C Verano,
That did it. I changed out the 2 speed housing with a Kawahara LW 2 speed housing and man this car rocks. I think I am ready for the series race here in Region 9 now.
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Old 02-11-2006, 09:20 PM   #213
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Quote:
Originally Posted by three50zx
C Verano,
That did it. I changed out the 2 speed housing with a Kawahara LW 2 speed housing and man this car rocks. I think I am ready for the series race here in Region 9 now.
Glad to hear it worked out for you. Good luck at your series race.
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Old 02-14-2006, 03:55 PM   #214
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Thumbs up GPX4 RTR x 2

Hi Guys
My son 16 and myself (40something) have RTR versions

Both run hyper 12 rear exhaust , with very different set ups
we run approx the same time on both cars and vice-a-versa

Cant seem to get it to run as fast as others

Any ideas! is it the motor? or just the cars
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Old 02-14-2006, 04:34 PM   #215
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I've got a Pro for sale if anyone's interested.
Drop me a PM
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Old 02-14-2006, 06:49 PM   #216
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Its probly not so much the chasis its most likely the driver the engine and the set up of the car if the car is set up for the track properly then you should have no problems getting better and more consistiant laps also the hyper 12 proberly isant the most powerful eniging suited for that car the enging the i think would best suit the car will be the os 12 tr (p) wherre as the gpx 4 pro would be the os 12 tz but thats just my opinion although working in a hobby store helps allot because a few people here have the rtr version and they some times come in looking for a more powerful enging but its is only worth inversting in a new engine if u are going to race wich not many people with the rtr gpx do and the pro version only have a handfull up here have and all are raced so i would consider in buying a new enging or looking at the set up of the car although befor buying a new engine i would look at the rules befor buying a new engine because if ur in the rtr class you may not be allowed to buy a different engine

Good luck
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Old 02-14-2006, 06:55 PM   #217
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Default Gpx4 RTR

Thanks
My rig is due a new motor we will give that a go.

I might also change the radio tray to try to balance car left to right.
current very heavry right side

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Old 02-15-2006, 08:07 AM   #218
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Quote:
Originally Posted by Swamp Rat
Thanks
My rig is due a new motor we will give that a go.

I might also change the radio tray to try to balance car left to right.
current very heavry right side

yeah. if your new to the hobby, i suggest you get the OSTZ if the budget permits. OS engines do not require that much tinkering on it and its also easier to break-in. Well at least thats what i think. Im also using an OSTR for my hobao car and it works great. I have to change this plastic carb insulator though since this piece is quite old.
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Old 02-19-2006, 02:21 PM   #219
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Arrow Gearing / Oils


Guys we have taken some slack out of the steering and front Suspension
And have picked up some time 1.5 secs.

What oils in front - rear Shocks and what the best gearing for small tight track with 50mt straight.
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Old 02-20-2006, 12:28 AM   #220
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hey thats great that u got 1.5 secs of ur time but what do u mean buy taking the slack out
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Old 02-20-2006, 01:07 PM   #221
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Default Slack

New bearings and Hub carriers up front / new servo.

any ideas on gearing / shock oils

thanks
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Old 02-22-2006, 05:33 PM   #222
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Quote:
Originally Posted by Swamp Rat
New bearings and Hub carriers up front / new servo.

any ideas on gearing / shock oils

thanks
Hi we have a small tight track here in the PI. Were using Associated 40WT shock oil for both front and rear but sometimes we change the rear to 30WT. For gearing, I just used the stock gears that came with the package.
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Old 02-25-2006, 08:06 AM   #223
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I have just bought a GPX-4 Pro and am going to run Nitro Pro it has a Nosram .12 motor in it and can't wait to get it it should be here next week anyone else in Australia running a Pro we can chat and swap setups.

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Old 02-26-2006, 06:32 AM   #224
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guys my engine just bailed on me. Would like to ask, has anyone tried the hyper 12 engine? is it any good?
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Old 02-28-2006, 02:12 AM   #225
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Default hyper 12

the hyper 12 in my opinion isant quite as good as the tr ive seen the os 12 tr vrs the hpyer 12 and the tr won and buy far was the best motor and the hyper 12 in my opinion isant as good but in saying that it isant a bad motor either but for just a club run it is ok
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