Quote:
Originally Posted by ysu
Wrt tyre pressures;
Last time on the track we were doing 20 min on / 20 min off the track.
I've checked the tyres after a session (starting from 35psi ~2.4bar) and they were over 40psi. I've let out 4psi, and the car behaved very nicely. The 20 min wait wasn't enough to completely cool the tyres down, so it worked out well. But I did not get any faster  (although the traffic was always in the way, too) |
This is how I did it when I had longer track sessions too. Like driving 1-hour sessions at Zolder. I would drive 3-4 laps, pit and adjust the tire pressures and go back out.
Judging from the temperature data it seems a pretty ballpark way to do it. You just got to know which approximate hot pressure to set.
Also, after you are done you can let the tire cool, then check the cold pressure and make a note for next time. That way next time you can set it directly before the first session.