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Old 04-08-2010, 03:49 PM   #1
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Default TRF801 GT Build project

Being a Tamiya fan and a fan of On-road GT racing, I decided to start a build project converting the TRF801X to a GT car.

I'm using a Serpent 966 2 speed. I had this initially installed in a Kyosho IGT2.

Initially I planned on shifting the transmission forward, since the 2 speeds overall length is longer than the 801's centre diff. This would have required finding a CVD or dog bone that was between 65 and 70 mm in length.

It also would require that the fuel tank be moved forward because the pinions would come in contact with rear fuel tank mount.

So I decided to move it backward. As luck would have it a spare front CVD from MP 7.5 fit the bill.

Here are some pictures of how the layout will look.









In the IGT2, I had to shim the flywheel and gears forward. With the 801, I actually ended up removing all shims.

I will however need to move the motor back roughly 3 mm, so that the clutch bell does not rub on 2nd spur. Will also need to increase the counter bore in chassis for motor to sit nicely and well as enlarge the cut out for the clutch bell.

Time to get over to the mill shop.
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Old 04-08-2010, 04:35 PM   #2
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Looks like it will be interesting to follow your build up.
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Old 04-08-2010, 05:01 PM   #3
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this is pretty cool, I love seeing innovation!! I took a TRF801X and converted in to a Dirt Oval Late Model. I had to make a front bumper and some nerf wings for it.

If you need a bumper for this car, I can make one for ya. PM if you need more info or i can send you some pics of my car.

Thanks,
Phil
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Old 04-08-2010, 08:56 PM   #4
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i don't think that you need to move engine back try using different flywheel may be from Ofna and that should solve your problem 2nd gear touching clutch bell and it should line up better in hall
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Old 04-08-2010, 09:32 PM   #5
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will these kinds of mods still allow the car to race within the rules? I'm considering the same thing with my Losi 8 but didn't know if modifying the chassis was allowed.
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Old 04-09-2010, 12:09 AM   #6
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Quote:
Originally Posted by -vtec- View Post
i don't think that you need to move engine back try using different flywheel may be from Ofna and that should solve your problem 2nd gear touching clutch bell and it should line up better in hall
Hi VTec,

How is the Ofna flywheel different? Lower profile? Do you have a part number?

And thanks for your post

Last edited by Raman; 04-09-2010 at 01:15 AM.
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Old 04-09-2010, 12:12 AM   #7
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Quote:
Originally Posted by air8 View Post
will these kinds of mods still allow the car to race within the rules? I'm considering the same thing with my Losi 8 but didn't know if modifying the chassis was allowed.
Rules state any Buggy based car. Chassis mods are allowed, such as adding a 2 speed. In fact the Ipanema Black Hawk trans is an after market add on and was allowed in spec class. Spec rules basically require a motor within budget.
Open class is open well open

Last edited by Raman; 04-09-2010 at 01:15 AM.
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Old 04-09-2010, 02:11 AM   #8
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Quote:
Originally Posted by Raman View Post
Rules state any Buggy based car. Chassis mods are allowed, such as adding a 2 speed. In fact the Ipanema Black Hawk trans is an after market add on and was allowed in spec class. Spec rules basically require a motor within budget.
Open class is open well open
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Like your project Raman, keep up the good work!
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Old 04-09-2010, 08:02 AM   #9
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Go Raman!
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Old 04-09-2010, 03:00 PM   #10
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Thanks for the support and ideas guys. Keep them coming
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Old 04-09-2010, 07:22 PM   #11
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Default flywheel

i would give this a try OFN40814 you can find this @ Nitrohouse.com you mite need some shims on back of it not sure if its 34mm or 36mm but i can measure it for you
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Old 04-09-2010, 09:23 PM   #12
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Old 04-09-2010, 09:52 PM   #13
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Quote:
Originally Posted by wwoodruff View Post
Looks like it will be interesting to follow your build up.
Yes, keep the updates coming!!!

This class needs more brands to keep it interesting.

A friend of mine did the Losi 8ight on-road conversion and went brushless at the same time. I drove it a bit in the street and was impressed. I'm looking forward to hearing how this conversion drives.

If I'm lucky I'll get to see it on the track in action!!!
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Old 04-09-2010, 10:31 PM   #14
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V-Tec: Thanks for the part number. I will give it a look.

JRRobiso: Thanks man.. this was the B-day gift from the wife

Dan: Are you still going to Camarillo track Sunday? I heard it might rain.. regardless, Im going to take my TRF416 so I can stop by on the way back.
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Old 04-09-2010, 10:34 PM   #15
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Default Shock Towers

I'm designing a hybrid shock tower, cross between 801X and IGT.

Does anyone know where I can send this to have it made out of Carbon? I contacted Max Velocity and they told me they're too busy.

Thanks
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