[arpad_m]

Originally Posted by Og Neon

As for the certificate, if he had a cert with speed listed on it, he is probably doing the half mile top speed events or the even longer top speed events. That is a different setup and in that case, I can see some credence to his pressure recommendation because they are concerned about rolling resistance and therefore want higher pressures. They are going in a straight line and completely different management style. A typical road course track day does not result in a certificate with a top end speed listed on it.

Slightly off, but I thought the reason for the high initial tire pressure recommendation for max speed runs was better heat management due to less flexing and not so much lower rolling resistance. The enormous aerodynamic drag at those speeds (180-200 mph) completely dwarfs any rolling resistance difference, doesn't it?