Troubleshooting Tire Temps

Symptom	Diagnosis
Center hotter than edges	Tire pressure too high. Reduce 1 psi (0,07bar) for each 5° F (2,75° C) delta
Edges hotter than center	Tire pressure too low. Add 1 psi (0,07bar) for each 5° F (2,75° C) delta
Inner edge hotter than outer	Too much negative camber
Outer edge hotter than inner	Not enough negative camber or too much toe-in
Tire below ideal temperature range	Tire pressure too high or Tire too wide or Springs/sway bars too soft at that axle
Tire above ideal temperature range	Tire pressure too low or Tire too narrow or Springs/sway bars too stiff at that axle
Front tires hotter than rear	Car is under steering (pushing) or Too much front spring/sway bar or Not enough rear spring/sway bar or Front pressure too low or Rear pressure too high or Front tires too narrow or Rear tires too wide
Rear tires hotter than front	Car is over steering (loose) or Too much rear spring/sway bar or Not enough front spring/sway bar or Rear pressure too low or Front pressure too high or Rear tires too narrow or Front tires too wide

A 1 Celsius change is a change of 1.8 Fahrenheits while a 1 Fahrenheit change translates to a change of 0.55 Celsius.This is one of the easiest way to convert them if you know that 0°C = 32°F

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Correcting Over- or Understeer

Symptom	Diagnosis
Reduce Oversteer	Reduce rear pressures or increase front pressures
Increase Oversteer	Increase rear pressures or reduce front pressures
Reduce Understeer	Reduce front pressures or increase rear pressures
Increase Understeer	Increase front pressures or reduce rear pressures