Hoosier R3S05 tire pressures
12-01-2005, 11:30 AM
#1
Burning Brakes
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Hoosier R3S05 tire pressures
Hoosier R3S05 tire pressures.
I'm running these for the first time this weekend at Roebling.
Does anyone have info on tire pressures for a 2500# 911 SC?
Thanks,
Mark.
I'm running these for the first time this weekend at Roebling.
Does anyone have info on tire pressures for a 2500# 911 SC?
Thanks,
Mark.
12-01-2005, 12:22 PM
#2
For what it's worth I start with anywhere from 29 to 33 cold on a 993. Given that it will probably be cool and your car is lighter you may want to start a little higher- the key is no more than 40 hot.
12-02-2005, 12:32 AM
#3
Burning Brakes
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Hoosiers formula is to divide car weight ( with fuel and driver) by 100, for minimum safe pressure. 2500 divided by 100 = 25 psi. My car weighs 3200# and it works pretty well as a starting point at 32/33 The sweet spot is 180-195 deg.F for my set up and that usually corresponds to 42/43 psi hot. I add or subtract in 2 psi increments depending on conditions. Two sessions at most to dial in.
