02-12-2015, 08:31 PM | #1 |
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Track tire selection help:
I bought a set of the EC-7s 18x10ET33 as well as 5mm front spacers for my F80 during the sale.
What track tires/sizes do you guys know will work with this set up? (stock suspension and geometry) |
02-12-2015, 08:42 PM | #2 |
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I'd go with 275/35 or 275/40 square. R888 and Nitto NT01 come in both those sizes IIRC. DOT slick probably not worth it without some negative camber.
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Road course laptimes for BMW M4 2015 6MT
WHP East Track: 1:04.880, Arizona Motorsports Park: 1:54.352 Road course laptimes for Porsche 911 991.1 GTS 7MT WHP East Track: 1:02.770, Arizona Motorsports Park: 1:48.889 |
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02-12-2015, 08:52 PM | #3 | |
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I used the NT01s on a E92 for a non-race weekend and they were overall quite nice. They will hold up better than the R888s, yes? I have not used good old R888s since Spec E30 days!....man I am getting old!! Will a 285 fit these wheels or is that pushing it? |
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02-12-2015, 10:07 PM | #4 | |
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See here: http://f80.bimmerpost.com/forums/sho...9&postcount=16
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02-13-2015, 08:16 AM | #7 | |
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Road course laptimes for BMW M4 2015 6MT
WHP East Track: 1:04.880, Arizona Motorsports Park: 1:54.352 Road course laptimes for Porsche 911 991.1 GTS 7MT WHP East Track: 1:02.770, Arizona Motorsports Park: 1:48.889 |
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02-13-2015, 08:17 AM | #8 |
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I just was replying to the question if 285 would fit
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02-13-2015, 11:13 AM | #9 |
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sorry I was misunderstood----I use Hoosiers in Spec Race Atom as well as Lotus Cup car and Lotus 2-11 and we now have to use Toyo RR in BMW CCA Spec E36 class----I do not wheel to wheel my non-caged F80M3---it will be used for VIR club day fun and at times when I instruct
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02-13-2015, 11:22 AM | #10 | |
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All the more reason to stay away from slicks if you're instructing. Have fun!
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Road course laptimes for BMW M4 2015 6MT
WHP East Track: 1:04.880, Arizona Motorsports Park: 1:54.352 Road course laptimes for Porsche 911 991.1 GTS 7MT WHP East Track: 1:02.770, Arizona Motorsports Park: 1:48.889 |
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02-13-2015, 11:25 AM | #11 |
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any recs over 35 verses 40 side wall in the Nitto?? which is more like the OEM size as to not confuse the car?
I will have off the nannies except of course ABS which I love!! <the atom has no ABS and the HoHos sure don't like those flat spots> Does anyone know if I stay with 275 size in Nitto will I need larger than 5 mm spacers up front? I really do not want to change much else on the car as it will be only used on track just few times a year---I already have put up with SPEC camber plates in my E36 for years and it causes bad tire wear---finally this year we are allowed to use an alternative plate----up til now, our Spec E36 race cars carried -4.5 camber!! |
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02-13-2015, 11:30 AM | #12 | |
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But I assume that the Nittos will hold up twice as long as the Hoosiers, correct? I have very little experience with the Nittos but loads with Hoosiers----I honestly think the Hoosiers can get somewhat unsafe after 15 HCs-----believe it or not, I use the A6/7 in the Lotus 2-11 as it weighs only 1500 lbs----now that is a fantastically fun tire on track if you have a light car |
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02-13-2015, 11:45 AM | #13 |
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We have recorded few issues with R6s on heavy cars (3200+ lbs), after 12-14 HCs we perform extra checks on them, but most issues are not visible to naked eye. We had few blow outs at high speeds at both VIR and Summit, and of course few at Daytona due to banking. So, I agree with the "can get somewhat unsafe..." part.
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02-13-2015, 12:41 PM | #14 | |
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Road course laptimes for BMW M4 2015 6MT
WHP East Track: 1:04.880, Arizona Motorsports Park: 1:54.352 Road course laptimes for Porsche 911 991.1 GTS 7MT WHP East Track: 1:02.770, Arizona Motorsports Park: 1:48.889 |
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02-13-2015, 01:21 PM | #15 | |
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No really, been involved in racing for 15 years with NASCAR team and best friend owns racing tire business(circle track and karts) |
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02-13-2015, 05:59 PM | #16 |
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so last ?s:
any recs over 35 verses 40 side wall in the Nitto?? which is more like the OEM size as to not confuse the car? Does anyone know if I stay with 275 size in Nitto will I need larger than 5 mm spacers up front? |
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