Hehe, when we race, our left rear tire usually has 3.5 psi. Yes, that's three and a half psi. Our right rear has no more than 8 psi, and the fronts are 12 (right) and 10 (left). Of course, the right rear is 16" wide, and we are running on dirt/clay. That's Sprint cars for you though.
Take care,
-Chris
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