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Motorsports & Track Forum
From Auto-X to Trackday to Racing and Professional Motorsports this is the place to discuss making BMWs fast

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Old 07-10-2008, 01:58 AM   #1
USCTrojanMan29
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Question Running R-compound tires at the track for 1st time...what to expect???

I picked up 4 Michilen Sport Cup Tires for my 996TT (225 front/295 back) and I'll be putting them on my OEM 18" wheels. I'll be using R-compound tires at the July 19/20 BWC CCA DE Event @ Buttonwillow for the first time. So I'd like to know what to expect from some of you more experienced track guys (I'll be my 8th track event). How careful will I have to be with them on driving up to the track (150 miles each way)? What pressure should I run driving there and back? What pressure should I run while on the track? Will one lap warm up the tires? Any advise and/or input with these tires is greatly appreciated.
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Old 07-10-2008, 02:59 AM   #2
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You should run a maximum 29 to 33psi when they are warm. Run two warmup laps with ~30ish psi then go to the pit and check tire temprature and pressure. When they are fully warm they should be around 7-8psi more pressure then they are in their cold state.

Im running 40psi on MPSC on street.
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Old 07-10-2008, 07:22 AM   #3
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Go to the Michelin site and get the document: Michelin_Care_and_Feeding.pdf. It has a lot of useful info, as you might expect from the title of the document. It's amazing to me how low their recommended pressures are compared to a Hankook Z214 or Hoosier R6.

Have fun.
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