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      02-05-2009, 11:33 PM   #1
amigo
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Going to track day, the runflats. tire press?

I'm going to Thunderhill Park next week for a track day. Any recommendations on tire pressures. I'm going to use the runflats. no money left,for tires, as the car is new. 135i Msport package.
Should I raise the front press. and not the back to try and get rid of the oversteer. thx.
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      02-05-2009, 11:44 PM   #2
AtomiK
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Umm, kind of off topic, but since you have a 135i with the M-Sport package, can you take pictures of it? I just want to see if there are any noticeable differences from the non M-Sport cars aside from the stuff we heard about in the press release.
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      02-06-2009, 01:07 AM   #3
Raflekt
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I have rfts and on the track day i used it like this:

38 front

41 rear


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      02-08-2009, 03:20 AM   #4
BerkTechnology
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Keep them kind of high, high 30's to low low 40's. Not good to lower the tire pressure on the RFT's. The sidewalls are too stiff.
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      02-08-2009, 10:44 AM   #5
xbook
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Is it me, or were some posts in this thread removed?
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      02-08-2009, 07:19 PM   #6
RedTRex
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40 Front
36 Rear

If it is really hot 90F or better - wet them after run 2, 4, 5, 6.

If it cold drop front by 2 or 3 and rear by 4 psi
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      02-11-2009, 06:02 PM   #7
looking
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Watch for "chunking" I know it's been talked about before, the RFT chunk when pushed.
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      02-12-2009, 02:08 AM   #8
amigo
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it's COLD. I should be leaving in 4 hours but just cancelled as the Siskiyou pass form Oregon into California is supposed to snow on/off all weekend. I don't want to risk my Baby in the freaking snow. I don't think the rft's will work to well.
Redtrex that is exactly where I ended up two weeks ago doing an autocross.
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