Car Setup
Tire Pressure Strategy for Track Days
Why 32psi is wrong. How to target the correct HOT pressure for maximum grip and longevity.
Introduction
Tires strongly influence the feedback and grip available to the driver. Pressure is one of the most accessible setup variables at a track day, but it must be evaluated with temperature, wear, vehicle guidance, and handling balance.
The Goal: Hot Pressure
Your tire manufacturer specifies an ideal HOT pressure.
- Michelin Cup 2: ~32-34psi Hot
- Goodyear Supercar 3R: ~32-34psi Hot
- Hoosier R7: ~38-40psi Hot (varies by weight)
The Problem: Cold Pressure
If you start at 32psi cold (street pressure), you will climb to 40+psi hot. The tire will balloon, lose contact patch, and feel “greasy.”
Strategy
- Start Low: Arrive at the track with ~28psi cold.
- Bleed Down: Come in HOT after your first session. Check immediately. Bleed down to target (e.g., 32psi).
- Monitor: As the day warms up, you’ll need to bleed more.
Warning: Don’t drive home on 24psi cold tires! Air them up before leaving.
Summary
Buy a good quality gauge ($50 Longacre). It pays for itself by saving your $2,000 tires.