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                               Tire Temperature Testing

Tire temperatures and proper tire inflation are often overlooked in the overall performance
of your vehicle.  Tire temperatures can give you an idea of whether your camber is too far
negative, there's too much body roll in the vehicles chassis, and can help pinpoint issues
with oversteer and understeer.  The following chart is from a SCCA setup guide.  To help
test your tire temperatures and track your progress as you tune, I have supplied the
following chart that you can print out.
Troubleshooting Tire Temperatures
Reading
Handling
Problem
Potential Cause
All tires too
hot
   Compound too soft for track and ambient temperature
conditions.
Front tires
too hot
 Understeer
 Front tire pressures too low.
Rear tires too
hot
 Oversteer
 Rear tire pressures too low.
Inside edges
too hot
 Too much
body roll
 Too much negative camber, too much toe out, spring rates,
roll bar size.
Outside
edges too hot
 Too much
body roll
 Too little negative camber, too little toe out or too much toe
in, spring rates, roll bar size, or wheel width too narrow for
tire width.
Center of
tread too hot
   Tire pressure is too high, or rim is too narrow for the tire.
Edges on tire
too hot
   Tire pressure is too low, or rim is too wide for the tire.
All tires too
cold
   Compound too hard for track and ambient temperature
conditions or car is not being driven to the limit.
Front tires
too cold
   Inadequate load on front tires.
Rear tires too
cold
   Inadequate load on rear tires.