Car and tyres
Conditions
°C
°C
Track days are typically 85-90°C
Handbook pressures
On the road your handbook placard is the authority, so GripCalc does not estimate a target. It adjusts the handbook figure for temperature: pressures set in a warm garage read low on a cold morning.
PSI
PSI
°C
The air temperature when you last set them, e.g. in the garage.
How much hotter each corner runs
°C
°C
°C
°C
Cold pressures to set
Left front
--PSI
Right front
--PSI
Left rear
--PSI
Right rear
--PSI
Set with the tyres genuinely cold
Pit stops and after the session
Take readings within a minute of coming in. All three zones per corner.
Optimal window: –
Left front °C
Right front °C
Left rear °C
Right rear °C
GripCalc never measures lap times. If you enter yours, the share card quotes it as your own and compares it with your last visit here.
Logged with the session: wear per event is what a track day actually costs. Same three-points habit as the pyrometer.