I had my first ever carpet race (13.5 rubber) yesterday at a local track, and I had an interesting problem that I couldn't figure out. I was wondering if you guys could give me a hand figuring it out.
The problem I had was that 1 or 2 minutes into the race, the car would loose rear grip and start spinning out. Funny thing is, at several corners the car still pushed
I tried quite a few things to alleviate the problem; I tried decreasing the amount of physical steering, putting the thickest sway bar up front, removing the rear sway bar, laying down the rear shocks and putting less camber up front. The changes had no effect on the problem but made the pushing worse
If went back to the pit, cleaned the tires and went out again, it would drive OK for two minutes or so and then everything would start all over again.
What could it be? The car drove fine on asphalt last weekend. I looked at a carpet rubber setup sheet when I got back but couldn't find anything obvious that was different.
One thing that comes to mind is that the fact I was not using any traction compound. The track was Jack the Gripper only track and I did not have it yesterday. Since on asphalt the car was fine without any traction compound I thought I would be fine. Could that have been the culprit?
I also found out that after each run there was a layer of black gunk / crud buildup on tires that was very hard to clean.
I am fresh out of ideas. Would appreciate any help. What could possibly be causing my problem?