Going to the Track

Joe Fan said:

I would go with 38 pounds in the front and 28-32 in the rears (depends on how cool the track is, at night drop pressure). I tried 28-32.5 in the rears and 32-38 in the fronts and my best run was with 38 pounds in the front and 32.5 in the rear. I have heard you could drop the pressures down to 25 in the rear to increase the contact patch but dropping it too could reduce the contact patch due to cupping. I am not sure it makes much of a difference with radial street tires.

Probably the best answer to your question is to do a burnout somewhere the day you are going to the track. If the skid mark is dark on the outside and too light in the middle, then increase the tire pressure until the skid mark is solid black and even. If the skid mark is too light on the outside but darker in the middle, you have too much air pressure so decrease your tire pressure until it is a solid black mark. Let me know what you find.

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PoopDawg said:

Huh? lol. Decreasing the rear tire pressure from stock will not really help. These aren't the good old days of bias-ply tires. The sidewalls are not going to wrinkle and give extra contact patch.

As far as the burn out thing.... All tires grow with speed (centrifugal force) so doing a burn out and looking at the skid marks will do nothing. It will always look like they are over inflated (if you would even beable to tell the difference)

Nick

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