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You are fine :wink:The heat from your tire and track allowed rubber pieces "chunks" to be picked up that other softer compound tires left on the track. After a few hundred miles, yours will look clean again. But what you experienced is heat cycle of your tires. As you go through a few such sessions, your tires' rubber will harden. Hardened tires will last longer but will grip less and tend to be bouncier and noisier. My last street set had about 50 heat cycles on them with great mileage ......... :tongue:As for the fronts being 35 psi, that is not much more than the 33 psi. The rears tend to heat up more since that is where the weight is. Tires with higher psi on hot days tend to become slippery. It all depends from where you started to get a picture of how much heat you put in them to get to 35 psi. If you started with 32 psi, then you did not drive hard enough :biggrin:
You are fine :wink:
The heat from your tire and track allowed rubber pieces "chunks" to be picked up that other softer compound tires left on the track. After a few hundred miles, yours will look clean again. But what you experienced is heat cycle of your tires. As you go through a few such sessions, your tires' rubber will harden. Hardened tires will last longer but will grip less and tend to be bouncier and noisier. My last street set had about 50 heat cycles on them with great mileage ......... :tongue:
As for the fronts being 35 psi, that is not much more than the 33 psi. The rears tend to heat up more since that is where the weight is. Tires with higher psi on hot days tend to become slippery. It all depends from where you started to get a picture of how much heat you put in them to get to 35 psi. If you started with 32 psi, then you did not drive hard enough :biggrin:
