Tire Pressure (Hot vs Cold)

Tires gain ~0.5 psi for every 5 °C (10 °F) of temperature increase. JDM track day setup typically targets a "hot" pressure (after 3+ flying laps) of 32-36 psi for street tires and 28-32 psi for R-comp slicks. Starting cold pressures are usually 4-6 psi lower. Tire temperatures and pressures are recorded after every track session.