[shoooo32]

Are those readings hot or cold? A street tire will gain roughly 5-7psi from cold pressure when driven hard. With 16x7/9 wheels on my SC I normally set them between 28-30 cold for autoX (OEM recommendations for rear pressure are too high IMO).

If you want to get deep into it, buy a pyrometer. Tire temps tell a much better story than pressure alone.