Quote:
Originally Posted by persian54
I used to put them at 34 Cold and didn't check them hot (stupid mistake I know, but you live and learn right?)
Came in after (2 warm up, 3 hard) 5 laps and they were 40 Hot. Dropped down to 38 (hot)
Went back out (maybe 3 more laps? don't remember), and after my cool down lap (so total of 4 laps or so), the temps were around 38
So I guess that means that at 32 cold, it goes up to 40 hot
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How hard are you pushing the car? I wonder if perhaps your corner entry speed might be too high and you're getting a lot of understeer? Or perhaps you're just a really quick driver going at 10/10ths and operating at pretty good slip angles. I've seen guys get their temps from 36 psi cold to over 50 in one session. They are the same people complaining of understeer. I'm not an expert, but my pressures go from 35 psi cold to 40 psi hot after a 20 minute session and I see 42-44 after a 40 minute session. Yes, this will depend on the track and ambient temps and changes in track temp, but I see about the same temp changes whether I'm on a tight twisty track as a longer higher speed track.