02-01-2020, 11:08 PM | #1 |
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M8 track day at Thunderhill East
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Professional photos coming the next week. The track is new for me, but I went with an advanced coaching so was reasonably up to speed in the end of the day. Had A LOT of fun as this the track is fast-paced, has quite a few blind corners, looong curves, elevation changes, ~140 mph at the main straight and multiple turns at 80+ mph. |
02-01-2020, 11:48 PM | #2 | |
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Drives: 2020 M850i Coupe
Join Date: Oct 2019
Location: Arizona
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02-03-2020, 01:47 PM | #3 |
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Alright. After the two track sessions, I am changing my front tires with the total mileage being 1300. The tread has totally degraded on the sides, you can tell that although you don't feel it, it is a heavy car and it demands a lot from its tires while braking/cornering. I have also asked my dealer to add more negative camber, especially on the front.
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02-03-2020, 08:25 PM | #4 | |
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Hope you had Pirelli’s
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02-03-2020, 08:33 PM | #5 |
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I went with P4S again, as I had a good experience with them back with my previous M4. Honestly I haven't heard that P Zeros are better for the track, is that what you are saying?
I might switch to RE71R after this set wears out. RE71R, which I also tried back with the M4, are nice for the track (when warmed up properly), long-lasting, but have less grip & worse noise level for the road. |
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02-03-2020, 09:58 PM | #7 |
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If you run PS4S at the track, you need to take breaks after at most 10 minutes of driving. The tires have decent grip for a few minutes but overheat very badly after and at that point, you are just sliding around and burning the tread unevenly.
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02-03-2020, 10:23 PM | #8 |
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Superjackons, yup, I know, that's the downside of P4S' good capabilities for both R&T. Any reasonable alternatives? I am ready to try new stuff, the new P4S won't last more than 2 track days anyways.
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02-03-2020, 10:43 PM | #9 | |
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One thing I also noticed is that the M850i with these tires in 245/275 setup ran a faster time than the M5 on 275/285 tires, at same track with same driver Randy Pobst. That shows the tires are at least grippier than the P Zero on the M5! |
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02-03-2020, 11:15 PM | #11 |
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Yes 285/285 will work on your stock rims but I only recommend using 285 on your front 20x9.5 rims if the tire has a stiffer sidewall like RE71R or Sport Cup 2 to prevent the tire from rolling on its side when you corner hard.
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02-04-2020, 11:53 AM | #12 |
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Sport Cup 2, NT01, R888R are all available in 285/35r20, I'd look to run a set of those for the track.
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SCOTT26 "So as an admirer of the M5 and a potential customer of an M5 Touring. I would run naked around the streets of Garching if they were to offer one."
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