Tire Pressure 330ci

[Rafgar]

Thanks everyone. Rafael, if I start with 42 upfront (essentially cold) it almost seems like I might be approaching 50s by the end of the first 20-30 min session. Is that safe on street tires?

Alex,

Yes, you are correct. My comment on starting with 42 was for an autox.

For track sessions, as mentioned by Dwight, the starting pressure depends on the track and conditions. You probably want to start around 40 front and at most 38 rear - then check the pressures after each session to balance the car (side to side as well as front to back).

The comments on using cold pressures as your starting point was to make it easier to gauge.

The best way to make sure that you have optimum tire pressures is to use a temperature gauge not a pressure gauge.