I've went once...so not much knowledge from me. But, the guys were starting the day off around 38 psi, as the day went on and the tires were staying heated up in between sessions the start pressure before each run was being lowered as they would heat up that much faster...with the ideal temp around 42 I think.
Next year in Nashville the SHO Convention will be running at the Corvette track in Bowling Green.
Sent from my SM-N920V using Tapatalk