View Poll Results: what's your tire choice?
Protoform
46
30.67%
HPI
104
69.33%
Voters: 150. You may not vote on this poll
3907LikesU.S. Vintage Trans-Am Racing Part 2
11-09-2017, 09:13 PM
One ways are specifically forbidden in the USVTA rules. I expect that applies whether installed in the conventional manner or not. I believe that USGT is the only TC class of the two that has a provision for 2wd cars, but it states FWD. RobK monitors this thread and he might comment. While it sounds like fun, the lack of RWD cars that can mount the VTA tires makes the proposed changes difficult at best.
11-10-2017, 02:49 AM
I see a lot of talk on tires and bodies but none on 25.5 motors. So my Question is what the hottest 25.5 motor out there for vta.
11-10-2017, 03:53 AM
That’s pretty much the point of the 25.5 rules. To keep from having a “hot” motor. They are all so close, it is really more about the driver.
11-10-2017, 07:33 AM
One ways are specifically forbidden in the USVTA rules. I expect that applies whether installed in the conventional manner or not. I believe that USGT is the only TC class of the two that has a provision for 2wd cars, but it states FWD. RobK monitors this thread and he might comment. While it sounds like fun, the lack of RWD cars that can mount the VTA tires makes the proposed changes difficult at best.
11-10-2017, 08:21 AM
Ive seen most of the motors on the market win a VTA race. Pick a company you like figure out timing and gear ratio and have at it. In VTA it's more of running a mistake proof race. The smallest mistake kills momentum.
11-10-2017, 09:02 AM
Have anyone considered running 2WD for VTA instead? Recently I experimented with my TA07 using a reversed front one way unit and it worked quite well at Tamiya America. I soften both the front and rear springs using tamiya mini blue in front and tamiya mini yellow in back, and used 500 CST oil for the rear diff. The car handles just fine on track and I feel could become a fun racing class. The car got full brakes but you have to be easy on throttle to not spin the rear end around out of corners. other than that everything else handles just like a touring car. On carpet with higher grip level I feel you can still hammer the throttle pretty hard out of corners.
It could replicate a different class such as IMSA class or under 2 litre trans am class.
Be careful though you will get a lot scorn suggesting another class
11-10-2017, 09:28 AM
11-10-2017, 10:22 AM
Lone Drifter,
We briefly had a class where the only rule was "you have to run VTA tires". Motors, batteries, chassis, and everything else was open. To my surprise, everyone ended up running TCs with 21.5 or 17.5 motors.
We briefly had a class where the only rule was "you have to run VTA tires". Motors, batteries, chassis, and everything else was open. To my surprise, everyone ended up running TCs with 21.5 or 17.5 motors.
11-10-2017, 11:09 AM
11-10-2017, 11:17 AM
well TC cars are popular for a reason .
11-10-2017, 11:26 AM
Tech Prophet
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Tried the Protoform VTA tires on the YD2TC. Won’t fit with stock wheel hexes. Offset is wrong
11-10-2017, 11:44 AM
What he meant was people were using TC chassis, with various bodies & VTA tires w/ 17.5 or 21.5 motors. I was in that series and won 3 of the series races running a 21.5 motor. The VTA tires just couldn't quite put the 17.5 power down consistently.
We were speculating that some people might try to adapt the VTA tires to other types of chassis (pan cars, Minis, 1/14 scale chassis, etc). A few people tried but weren't successful.
It was our attempt to show that 'traction limited' racing can be fun and relatively inexpensive. But it turned out the finishing order was pretty much the same (the fast guys were fast and the slow guys were slow), so the slow guys left to attempt to create some other class where they'd dominate.
MC
11-10-2017, 11:50 AM
Tech Apprentice
11-10-2017, 05:39 PM
What he meant was people were using TC chassis, with various bodies & VTA tires w/ 17.5 or 21.5 motors. I was in that series and won 3 of the series races running a 21.5 motor. The VTA tires just couldn't quite put the 17.5 power down consistently.
We were speculating that some people might try to adapt the VTA tires to other types of chassis (pan cars, Minis, 1/14 scale chassis, etc). A few people tried but weren't successful.
It was our attempt to show that 'traction limited' racing can be fun and relatively inexpensive. But it turned out the finishing order was pretty much the same (the fast guys were fast and the slow guys were slow), so the slow guys left to attempt to create some other class where they'd dominate.
MC
This summer I race at a charity race where the surface was old school loose dirt. It was the most fun I had in along time . Cars like that really make you learn throttle control.
There are alot of good ideas out there for racing classes but only so much time and money to do them.
Last edited by Lone Drifter; 11-10-2017 at 05:55 PM.
11-10-2017, 05:51 PM
A friend had one of the old BUD'S 1/18th scale cars that was basically folded kydex. We used to run on his kitchen floor. Throttle control was paramount. We had a ball.
