>Higher pressure than you need equals hotter in the middle of the tire, for
sure.
Bill, true.. But you need to look at the complete picture.
When I ran in vintage locally it was in a 1960s Austin Mini Cooper 1275S on
175/55/13 A008Gs A Mini prepped to the full extent of the vintage rules,
except for the 13" rims. 1380 pound car. Granted, I was mainly looking at
rollover on the tire sidewall.
I ran 42psi front and 28psi rear- my autocross pressures... when I ran at
Texas World Speedway. The local Mini expert thought I was on drugs. So he
did tire temps for me during practice and declared I was spot on.
Granted, FWD means higher temps in front. And how aggressive he drives also
decides how high to push the pressure.
At a local autocross I competed in my Spitfire against another Spitfire on
identical Yoko slicks. The other driver ran pressures in the teens.. I was
running 22 front/26 rear. All being said and done I was something like 10
seconds faster per run. Totally hooked up. On old second hand take off
tires.
And I view road racing as an autocross where you can shift up out of second.
:D
Cheers,
Jim
Dallas TX
|