Tire Pressure for HPDE track event
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Joined: Mar 2004
Posts: 2,303
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From: Long Island, NY
My Ride: 2008 535i: June 6th start build, complete June 17th, at NY Port July 5th, at dealer July 10th, took delivery Friday July 13- Plantimum Bronze/Natural Brown Leather/Light Poplar, Sport Package, Sport Auto, Active Steering, Premium Package, CWP & PDC. Dinan Performance Software 384hp & 421 ft/lbs.
Back when I tracked my old car it was always recomended to run a couple of pounds pressure higher in the front than that back. That would help offset the built in understeer in BMWs. I saw that in one of the posts above and thought it was worth repeating. We also ran one side of the front higher than the other if the track had a lot more right hand turns than left. The higher pressure on the side that had the most use.
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Joined: Apr 2008
Posts: 97
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From: Fremont, CA
My Ride: 2005 545i
SPF Cobra #1019
For over steer/under steer corrections, check this out: http://rogerkrausracing.com/pages/in...nder+Steer.pdf
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