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Originally Posted by Blue_SV650S
So, this time of year, with say 2 degree track/air temp and a strong breeze, you think your alloy heat-sink wheels can sit about for 7-10 mins cooling off and one lap of brands indy and you are back up to full temp ... I think not!!  |
Having done 2 flying laps and come back in to measure the tyre temp and take pressure readings they are around 2 PSI and 10oc off full working temp that occurs on a tyre such as a supercorsa 3 laps in onwards.
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The argument here is not if preheating tyres is a good idea, but if in reality, the benefits of doing so are virtually negated, certainly greatly diminished by the time you get to go out (for a race).
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The benefits are that by keeping the tyres at a temp other than "cold" it lessens the amount of heat and cooling cycles the tyres have to go through. Compounded race tyres are designed to work with warmers and be pre-heated to wake up the compound.
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I'd say this time of year it is really really hard to keep heat in the tyres, you'd get away with it more on an August scorcher mind 
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Steve ran slicks at the weekend in 4oc with no probs getting them upto temp.
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In fact before now I have purposely gone to the collecting area sooner than normal to let the tyres cool off a bit before going out ... I am talking about days here where the ambient/track temp is so high that I was suffering from the tyres overheating mid-race!! 
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