Originally Posted by Chowbow
You can inflate the tire to max psi, but that doesn't mean it's the correct pressure for running that tire, on this car, with the type of suspension setup on the car. On mine, I'm running 39F, 42R on 235/265 19s. I used this pressure after a bunch of driving and considered it to be a good pressure to go with in terms of cornering and braking. An overinflated tire will corner a bit better due to less roll over but you lose a lot in braking too... something I'm not willing to sacrifice on the street. At the autocross I'll go higher, 44F 46R.
Chowbow, what psi do you recommend for 275/30/19?