[FUNFER2]

I think unless you are swaying side to side, that you won't gain much heat in the tire and air pressure. When we are racing our dirt winged sprint car, people don't know that even on dirt, when we are getting on the gas, we are not "showing off", we are trying to build heat (and test the track) we can gain 2 psi. But, our tires are very thin.

Same goes for drag racing, using water in the water box, to put heat in the tires. Again, we gain about 2 psi.

On the street, it would be interesting to perform a mild burn out then use a temp gun on the tires and check the psi.