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
#3376
#3377
Super clean wiring. That's the next task on my agenda.
#3378
Okay, since we are still on this glue discussion I have to admit I am following along because I am confused.
Are we talking about gluing the sidewalls on the outside of the rubber or gluing the tires to the rim?
The picture posted a while back referred to gluing the tire to the rim, on the inside of the tire. I think we can all agreed that is advisable!
Where I am confused is that I think the original suggestion was to spread glue on the outside of the tire, coating the sidewall and making it less grippy. This is questionalble and what the debate is about right?
Just trying to get on the same page.
Are we talking about gluing the sidewalls on the outside of the rubber or gluing the tires to the rim?
The picture posted a while back referred to gluing the tire to the rim, on the inside of the tire. I think we can all agreed that is advisable!
Where I am confused is that I think the original suggestion was to spread glue on the outside of the tire, coating the sidewall and making it less grippy. This is questionalble and what the debate is about right?
Just trying to get on the same page.
#3379
Okay, since we are still on this glue discussion I have to admit I am following along because I am confused.
Are we talking about gluing the sidewalls on the outside of the rubber or gluing the tires to the rim?
The picture posted a while back referred to gluing the tire to the rim, on the inside of the tire. I think we can all agreed that is advisable!
Where I am confused is that I think the original suggestion was to spread glue on the outside of the tire, coating the sidewall and making it less grippy. This is questionalble and what the debate is about right?
Just trying to get on the same page.
Are we talking about gluing the sidewalls on the outside of the rubber or gluing the tires to the rim?
The picture posted a while back referred to gluing the tire to the rim, on the inside of the tire. I think we can all agreed that is advisable!
Where I am confused is that I think the original suggestion was to spread glue on the outside of the tire, coating the sidewall and making it less grippy. This is questionalble and what the debate is about right?
Just trying to get on the same page.
#3380
I tried that back a while - it all flaked off after a few runs so I didn't bother anymore and worked on my setup to take a bit of forward bite out - stayed quick and no more traction roll. There ARE setup options to eliminate traction-rolls.
On the other hand, CA'ing the outside edges of foam tires is something I always do for my "normal" tires (i.e. not big race tires) as it lessens chunking and makes them last longer. . .
On the other hand, CA'ing the outside edges of foam tires is something I always do for my "normal" tires (i.e. not big race tires) as it lessens chunking and makes them last longer. . .
#3382
(FYI: I don't glue the outside of my VTA tires - I made the A-main in VTA at Harbor Hobbies - my car was on the edge of rolling but I was careful how I drove it).
During all of the tire discussion, I have seen anyone explain why a VTA car might roll and why to mechanically adjust the car to prevent rolling. IMHO gluing the sidewall is masking a setup problem.
Can someone take some time to explain why traction rolls happen (other than the obvious too much grip) and which setup changes (other than gluing the sidewall) help prevent rolling? This is an opportunity for someone to help everyone have more fun in this class.
Thanks in advance for helping newer VTA racers (as well as older racers like me who always struggle on high bite tracks).
During all of the tire discussion, I have seen anyone explain why a VTA car might roll and why to mechanically adjust the car to prevent rolling. IMHO gluing the sidewall is masking a setup problem.
Can someone take some time to explain why traction rolls happen (other than the obvious too much grip) and which setup changes (other than gluing the sidewall) help prevent rolling? This is an opportunity for someone to help everyone have more fun in this class.
Thanks in advance for helping newer VTA racers (as well as older racers like me who always struggle on high bite tracks).
#3384
@LloydLoar - I completely disagree. This thread is great! It allows VTA racers a place to discuss topics pertinent to VTA racing. It goes to show you how many people are actively interested in VTA.
#3385
#3386
Tech Champion
iTrader: (32)
Join Date: Aug 2001
Location: In a land of mini-mighty mental giants
Posts: 8,854
Trader Rating: 32 (100%+)
(FYI: I don't glue the outside of my VTA tires - I made the A-main in VTA at Harbor Hobbies - my car was on the edge of rolling but I was careful how I drove it).
During all of the tire discussion, I have seen anyone explain why a VTA car might roll and why to mechanically adjust the car to prevent rolling. IMHO gluing the sidewall is masking a setup problem.
Can someone take some time to explain why traction rolls happen (other than the obvious too much grip) and which setup changes (other than gluing the sidewall) help prevent rolling? This is an opportunity for someone to help everyone have more fun in this class.
Thanks in advance for helping newer VTA racers (as well as older racers like me who always struggle on high bite tracks).
During all of the tire discussion, I have seen anyone explain why a VTA car might roll and why to mechanically adjust the car to prevent rolling. IMHO gluing the sidewall is masking a setup problem.
Can someone take some time to explain why traction rolls happen (other than the obvious too much grip) and which setup changes (other than gluing the sidewall) help prevent rolling? This is an opportunity for someone to help everyone have more fun in this class.
Thanks in advance for helping newer VTA racers (as well as older racers like me who always struggle on high bite tracks).
Your car traction rolls because your roll centers are too low and your car is actually rolling into the carpet or track. If you raise your roll center then your car will just roll but will not have as much traction.
General rules of Thumb to help with traction roll.
Raise your inner camber link locations
Shorten your camber links ~ longer links more traction shorter links less traction.
General rule is adding to the inner links less traction and raising the outer end of the link more traction.
Raise your arm mounts on the chassis the lower they are the more traction you have.
Less castor will help but effects many more parts of the car but is another thing to look at.
Sway bars help when done and set properly.
More camber and camber gain can help.
As you stated, the reason for traction roll is too much grip and the way to correct this is to lower your roll center. High roll center has more grip than a low roll center. The way to do this is to either raise the inside of the rear link or lower the outside. However you should never go beyond it being parallel to the lower arm. Try it you will notice the difference.
#3387
I hate using CA glue and I stay away from it as much as possible. When I have a new set of VTA tires to mount I prefer to pay somebody else to mount them for me.
When traction rolling became a problem for my car, I just installed a couple of these Anti-Roll Bars in the front and back of my car. Viola! The traction rolling went away!
When traction rolling became a problem for my car, I just installed a couple of these Anti-Roll Bars in the front and back of my car. Viola! The traction rolling went away!
#3388
#3389
Tech Champion
iTrader: (2)
Actually this thread is not representative of my racing experience at any track. When you are at the track its all about charging tuning and racing. Everyone is friendly and they are all very ready to help you. They want you to be your best and they dont want you out just because you forgot your SXT. None of this crap about glue and racing a 5001 mah battery. If my racing was like this thread, well I am not sure I would. I just thank God its not.