Quote:
Originally Posted by rourkem
Interesting that there's such importance in temp when measuring. I remember that wen I used to fill to a specific temp for the track I used a small portable pump powered from the cig lighter outlet to make sure I was measuring the "cold" level.
I'm a bit less anal now and generally drive the ten blocks of so to a service station and fill it up then. Should I consider that a hot, cold or in-between temp? Would it be better for me to fill up after driving a bit more?
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10 blocks is "cold" especially if it's just city driving. You could always check the pressures when you leave the house and when you get there, minus whatever they heated for the true cold temp, and that would be the ultimate M3 nerd solution.
"Hot" would be after 30 minutes of driving including some highway OR just a few minutes of spirited driving w/ hard braking and acceleration. Once on a sunny day I heated up my tires from 32r/36f to 38r/42f in literally 1min30seconds because there was a large braking zone (was competition.)