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
U.S. Vintage Trans-Am Racing Part 2
#3946
Our RPM limit is 2550 (Get it, 25.5).
My FDR is 5.45 while my brother is running a 5.2 to get the same rpm. Both of our motors are right around 30 degrees on the timing marks.
I don't know what others are running as it is no longer a concern as far as teching goes.
My FDR is 5.45 while my brother is running a 5.2 to get the same rpm. Both of our motors are right around 30 degrees on the timing marks.
I don't know what others are running as it is no longer a concern as far as teching goes.
#3947
not fond of the RPM limit as the gearing difference could allow more grunt for some.
The rpm max only limits the top rpm the whole rest of the curve could be totally different
We have a spec 3.7FDR and I usually win but I often run the back markers cars and run the same lap times, I have never seen one slower than another that wasn't the driver or setup.
The rpm max only limits the top rpm the whole rest of the curve could be totally different
We have a spec 3.7FDR and I usually win but I often run the back markers cars and run the same lap times, I have never seen one slower than another that wasn't the driver or setup.
#3948
not fond of the RPM limit as the gearing difference could allow more grunt for some.
The rpm max only limits the top rpm the whole rest of the curve could be totally different
We have a spec 3.7FDR and I usually win but I often run the back markers cars and run the same lap times, I have never seen one slower than another that wasn't the driver or setup.
The rpm max only limits the top rpm the whole rest of the curve could be totally different
We have a spec 3.7FDR and I usually win but I often run the back markers cars and run the same lap times, I have never seen one slower than another that wasn't the driver or setup.
#3950
Tech Apprentice
I want to come run some VTA with your gang.
#3951
We race every Friday night at the local hobby town in Sioux Falls South Dokota. Stop on by and bring your car.
http://www.hobbytown.com/Sioux_Falls-SD_Racing/
We can help you get you car tuned to the rpm limit. Takes almost no time as long as you have a few gears with you or a car that others are running, we can go by what they are running to get close.
We had a fdr limit...didn't work. At the slow speeds we are running (6.9 is slow) the differences in motors is huge. There is nothing you can do to speed it up either as everyone is at the timing limit and gear limit. If you have a slow car you are s.o.l. You will just have to trust me, we tested every which way. I drove their cars (and I win a lot too) and there is a difference. Our tract is small and to be .8 off the pace is huge. Doing nothing else and swapping the motors with one of the fast guys Motors brought their speeds and times up. You won't convince me it is anything other than differences in motor.
On large tracks with no fdr limit this is insignificant, you can adjust gearing and timing to keep pace. Not on our track. Out local goal is slower, closer matched cars. The only way to effectively spec this was a rpm limit and the handheld tach is the simplest, easiest solution track side.
It works awesome and people are having more fun, the leaders stay closer together for longer and it is more of a race. I love it.
How do we keep an eye on cheating, we don't. We race! There is a contingency plan to have radios checked and asking everyone to turn their end points up to max when setting the throttle range but it isn't an issue. You can tell if a car is walking away and needs to be checked. So far though we are all having fun and that is the important part.
http://www.hobbytown.com/Sioux_Falls-SD_Racing/
We can help you get you car tuned to the rpm limit. Takes almost no time as long as you have a few gears with you or a car that others are running, we can go by what they are running to get close.
We had a fdr limit...didn't work. At the slow speeds we are running (6.9 is slow) the differences in motors is huge. There is nothing you can do to speed it up either as everyone is at the timing limit and gear limit. If you have a slow car you are s.o.l. You will just have to trust me, we tested every which way. I drove their cars (and I win a lot too) and there is a difference. Our tract is small and to be .8 off the pace is huge. Doing nothing else and swapping the motors with one of the fast guys Motors brought their speeds and times up. You won't convince me it is anything other than differences in motor.
On large tracks with no fdr limit this is insignificant, you can adjust gearing and timing to keep pace. Not on our track. Out local goal is slower, closer matched cars. The only way to effectively spec this was a rpm limit and the handheld tach is the simplest, easiest solution track side.
It works awesome and people are having more fun, the leaders stay closer together for longer and it is more of a race. I love it.
How do we keep an eye on cheating, we don't. We race! There is a contingency plan to have radios checked and asking everyone to turn their end points up to max when setting the throttle range but it isn't an issue. You can tell if a car is walking away and needs to be checked. So far though we are all having fun and that is the important part.
#3952
Tech Fanatic
video from my onboard camera in VTA @ the SNOWBIRDS
http://www.rcactionpics.com/2013/201...rds_page2.html
http://www.rcactionpics.com/2013/201...rds_page2.html
#3953
Tech Elite
iTrader: (9)
How small of a track are you running that the only way to keep VTA even is to restrict rpm at the wheels? What are the lap times?
I would speculate that the reason the racing is closer now is because the slower speeds have made it easier for a poorly setup car to turn closer laps times to the better setup cars.
I'm glad this formula works for your track, but my experience running VTA at many tracks has shown this isn't really necessary to have a level playing field.
I would speculate that the reason the racing is closer now is because the slower speeds have made it easier for a poorly setup car to turn closer laps times to the better setup cars.
I'm glad this formula works for your track, but my experience running VTA at many tracks has shown this isn't really necessary to have a level playing field.
#3954
We race every Friday night at the local hobby town in Sioux Falls South Dokota. Stop on by and bring your car.
http://www.hobbytown.com/Sioux_Falls-SD_Racing/
We can help you get you car tuned to the rpm limit. Takes almost no time as long as you have a few gears with you or a car that others are running, we can go by what they are running to get close.
We had a fdr limit...didn't work. At the slow speeds we are running (6.9 is slow) the differences in motors is huge. There is nothing you can do to speed it up either as everyone is at the timing limit and gear limit. If you have a slow car you are s.o.l. You will just have to trust me, we tested every which way. I drove their cars (and I win a lot too) and there is a difference. Our tract is small and to be .8 off the pace is huge. Doing nothing else and swapping the motors with one of the fast guys Motors brought their speeds and times up. You won't convince me it is anything other than differences in motor.
On large tracks with no fdr limit this is insignificant, you can adjust gearing and timing to keep pace. Not on our track. Out local goal is slower, closer matched cars. The only way to effectively spec this was a rpm limit and the handheld tach is the simplest, easiest solution track side.
It works awesome and people are having more fun, the leaders stay closer together for longer and it is more of a race. I love it.
How do we keep an eye on cheating, we don't. We race! There is a contingency plan to have radios checked and asking everyone to turn their end points up to max when setting the throttle range but it isn't an issue. You can tell if a car is walking away and needs to be checked. So far though we are all having fun and that is the important part.
http://www.hobbytown.com/Sioux_Falls-SD_Racing/
We can help you get you car tuned to the rpm limit. Takes almost no time as long as you have a few gears with you or a car that others are running, we can go by what they are running to get close.
We had a fdr limit...didn't work. At the slow speeds we are running (6.9 is slow) the differences in motors is huge. There is nothing you can do to speed it up either as everyone is at the timing limit and gear limit. If you have a slow car you are s.o.l. You will just have to trust me, we tested every which way. I drove their cars (and I win a lot too) and there is a difference. Our tract is small and to be .8 off the pace is huge. Doing nothing else and swapping the motors with one of the fast guys Motors brought their speeds and times up. You won't convince me it is anything other than differences in motor.
On large tracks with no fdr limit this is insignificant, you can adjust gearing and timing to keep pace. Not on our track. Out local goal is slower, closer matched cars. The only way to effectively spec this was a rpm limit and the handheld tach is the simplest, easiest solution track side.
It works awesome and people are having more fun, the leaders stay closer together for longer and it is more of a race. I love it.
How do we keep an eye on cheating, we don't. We race! There is a contingency plan to have radios checked and asking everyone to turn their end points up to max when setting the throttle range but it isn't an issue. You can tell if a car is walking away and needs to be checked. So far though we are all having fun and that is the important part.
#3955
Tech Regular
iTrader: (19)
in my opinion the rules are fine if u run a tc3 or tc4 but ive got a t3 2012 and with a ea battery i still have 143 grams to make the 1550 mark and to tell u the truth its not worth the hasle im starting to rethink the usvta thing and maybe go gt or tc and anyone who says the rules are there to help guys with older cars crap not everyone wants a late 90s car or early 2000 some want something a little nicer the weight thing is just killing me
#3956
Tech Elite
iTrader: (9)
in my opinion the rules are fine if u run a tc3 or tc4 but ive got a t3 2012 and with a ea battery i still have 143 grams to make the 1550 mark and to tell u the truth its not worth the hasle im starting to rethink the usvta thing and maybe go gt or tc and anyone who says the rules are there to help guys with older cars crap not everyone wants a late 90s car or early 2000 some want something a little nicer the weight thing is just killing me
#3957
There is nothing that prevents someone with a full VTA car from running here. We have a RPM limit but that is easy to adjust to, the same as adjusting to a track at a national event. Every event/track someone races at requires different setups and ours is no different.
The point of VTA at our local club is to have a friendly class that is slow and controlled. The VTA formula works at our track and we have a great time. Our track measures 25' x 55' with typical lap times around 8 seconds for the fast guys.
The point of VTA at our local club is to have a friendly class that is slow and controlled. The VTA formula works at our track and we have a great time. Our track measures 25' x 55' with typical lap times around 8 seconds for the fast guys.
#3958
There is nothing that prevents someone with a full VTA car from running here. We have a RPM limit but that is easy to adjust to, the same as adjusting to a track at a national event. Every event/track someone races at requires different setups and ours is no different.
The point of VTA at our local club is to have a friendly class that is slow and controlled. The VTA formula works at our track and we have a great time. Our track measures 25' x 55' with typical lap times around 8 seconds for the fast guys.
The point of VTA at our local club is to have a friendly class that is slow and controlled. The VTA formula works at our track and we have a great time. Our track measures 25' x 55' with typical lap times around 8 seconds for the fast guys.
#3960
Tech Regular
iTrader: (1)
How small of a track are you running that the only way to keep VTA even is to restrict rpm at the wheels? What are the lap times?
I would speculate that the reason the racing is closer now is because the slower speeds have made it easier for a poorly setup car to turn closer laps times to the better setup cars.
I'm glad this formula works for your track, but my experience running VTA at many tracks has shown this isn't really necessary to have a level playing field.
I would speculate that the reason the racing is closer now is because the slower speeds have made it easier for a poorly setup car to turn closer laps times to the better setup cars.
I'm glad this formula works for your track, but my experience running VTA at many tracks has shown this isn't really necessary to have a level playing field.