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      07-02-2009, 03:44 PM   #8
lucid
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Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
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Quote:
Originally Posted by CSMRX7 View Post
I know we are talking in days here but how many miles/laps and sessions do you run in a day? A normal track day for me may be 50 laps, of just over 2 miles with 12 turns. I have yet to run R comps on my M but the PS2s for myself and a few others were only good for 3-4 days. I have about 80 laps on Nitto NT05s and think i could pull another 80 out of them. Once they are done I think I will move back to NT01s which is what I have run the most on my previous setups.
I guess the miles/laps metric depends on the average speed of the track, but the sessions I am in are usually about 20-25 minutes with some exceptions of longer sessions. So that's about 80-90 minutes a day? At Limerock, that would mean something like 75-80 laps a day maybe. At the Glen 35-40? I destroyed my front PS2s that came with the car in pretty much exactly 4 dry track days. Rears had more in them. I was a bit worried about using them again last week thinking they might be destroyed in the rain as well, but they held up fine then--obviously because of the slower speeds and lower temps.
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