Running Hoosiers in a sprint kart. All of our data is at 70-80 degree air and 95-105 deg track temps. Running 14 psi fronts and 12 rears. It’s going to be 40-50 degrees on race day. Is 1 psi increase per 10 degrees drop a fair approximation of what we should do? 16 hours to go…Thanks for any feedback.
I don’t know the working range for Hoosiers specifically but usually tires have a working range of 5 psi or so. 1 psi per 10 degrees seems a little extreme; I might try 2-3psi change.