Across the board, most drivers agree: the P1 tends to be happiest around 30 psi hot on track, with most autocross setups often running slightly lower depending on weight and platform. Lighter cars like Miatas or MR2s have reported success in the low- to mid-20s hot, while heavier platforms usually end up closer to 30.
Do You Need to Heat Cycle Them?
Many drivers skip professional heat cycling and scrub the tires in during their first event. Others swear by a full cycle with cooldown for added life and consistency.
Highway miles don’t count—they won’t get the tires hot enough.
Scrubbing In: What Works Best
You don’t need to sacrifice a full event to scrub in your P1s, just give them a first lap at 8/10ths so as to not too rapidly heat them up on the very first cycle.
- “Mine were scrubbed in by the end of my second run.” (Autocross)
- “First time out, the second session was significantly faster. No greasy feeling, just grip.” (Track/HPDE)
Figure-8s in a parking lot can work too—just get them hot, then let them cool fully.
On Track Tire Pressures (HPDE / Road Course)
Most track drivers report best results around 30–32 hot, measured immediately after a session. C7/C8 Corvettes, Camaros, and Audi RS3s all tend to perform best here, with performance starting to fall off if pressures creep much higher than 32–33.
- “Once it goes above 31 psi, performance tends to decrease.”
- "At 33 hot, I was starting to feel some greasy-ness by the end of a 20-minute session.”
Heavier EVs such as the Tesla Model 3 have been reported at 32–34 hot. Too low up front hurt early-session performance; this is a platform-specific experience, not a general recommendation, since EV weight and torque put more load on each tire.
M240i xDrive (3700 lbs): 25 cold → 30–32 hot. Some track drivers also referenced the “1 psi per 100 lbs” rule of thumb as a rough guideline for setting hot pressures.
Autocross Tire Pressures and Setups
Most autocross drivers start in the mid-20s cold and aim for high-20s to ~30 hot. Lighter cars may land lower, while heavier cars settle closer to 30. First runs may feel loose if it’s cool out, but grip comes in quickly as the tire builds heat.
- “In the 20s hot… 25–27 depending on oversize setup.” (MR2 Spyder)
- “Autocross 28–29 hot — awesome when they’re up to temp." (C6 Corvette Grand Sport)
Miata (2300 lbs, 305s): fastest runs came at 21f/19r hot after multiple heats. Another driver confirmed running 28/26 and dropping lower each run improved pace.
C6/C5 Corvettes: ~30 hot recommended.
Commodore/Monaro (1500 kg class): drivers reported around 30 hot being the sweet spot.
Camaro (2021 SLE): ran 31 hot on P1s (compared to 32–33 hot on RE71RS in the same conditions).
Compared to Other 200tw Tires
Most drivers are running the P1 slightly lower than RE71RS, A052, or CR-S. While those tires often like closer to 35 psi hot, the P1 seems to peak around 30–32.
Final Thoughts
Whether you're autocrossing or time trialing tire pressure is one of the easiest ways to unlock more performance from your P1s. Most setups will be happy starting in the mid-20s cold and finishing around 30 hot, but individual testing may lead some drivers to run slightly outside this range.