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Live circuit meteorology (Open-Meteo), interactive Doppler radar, and educational thermal rise advisory for North American circuits.
Interactive animated radar loop centered over Watkins Glen International (Long Course). Use the bottom scrubber to track approaching convective cells.
Configure chassis weight, tire compound, and desired hot operating pressure.
How to read a probe tire pyrometer immediately after an HPDE session to distinguish pressure crowning from suspension camber alignment:
Shows healthy negative camber. The entire contact patch is utilized when the body rolls into high-speed apexes.
Tire center is bulging and bearing excess weight. Grip feels greasy. Action: Bleed 1.5 to 2.0 PSI hot.
Tire center is concave; load is concentrated on outer shoulders. Action: Add 1.5 to 2.0 PSI.
The Uphill Esses (Turns 2-4) require courage and precision without lifting. The Inner Loop (Bus Stop) requires aggressive curb attack.
| CHASSIS | NOVICE | INTERMEDIATE | ADVANCED | RECORD |
|---|---|---|---|---|
| Porsche 911 GT3 RS | 2:10 | 2:01 | 1:54 | 1:47.8 |
| Corvette Z06 | 2:11 | 2:02 | 1:55 | 1:48.5 |
| BMW M2 / M3 | 2:20 | 2:10 | 2:02 | 1:55.2 |
| Spec Miata (NA/NB) | 2:34 | 2:22 | 2:14 | 2:08.6 |