07-28-2019, 12:42 PM | #1 |
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Can I track my M2C on 20in wheels?
What are the downsides of running autocross on 20in wheels with low profile tires?
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07-29-2019, 02:42 AM | #2 |
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not big into autox just because, it is terrible on tires and is actually more stress on the car than a regular road course. plus, i prefer being able to pass other cars in my group than being alone surrounded by cones. =)
20" is fine. just expect the tires to get chewed up.
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08-03-2019, 07:28 PM | #4 |
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No downsides at all, if you want to test the waters.
If you are doing this regularly, why? 20" rims weigh a ton, cost a bunch, and can only fit low-profile tires. Track cars run 17" - 18" rims for good reasons - replacements are significantly less expensive and weigh POUNDS less per corner. Also, tires are consumables in this hobby, and 17" tires are a lot less to buy than 20" tires.
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08-05-2019, 08:41 AM | #5 | |
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Quote:
https://f80.bimmerpost.com/forums/sh....php?t=1020511 BTW US M2C can only fit a min of 19" wheels due to the larger brakes. To the OP, I guess you sold your OEM wheels? I would use those if they are still available. Edit: Cool touring build, wish they did a factory M3 touring. |
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08-05-2019, 08:54 AM | #6 | |
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Quote:
And the cost of 17" rubber is in a different universe compared with upsized 20" tires. While this has a remarkable and noticeable gain in the suspension's ability to maintain contact between the tire and asphalt, I agree that nonetheless it's mostly relevant to regulars at the track.
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2011 6MT RWD ClubSport Wagon | 3,185lbs | 1 of 149 ZSPs delivered in North America
Outside: BMW M-Aero, Euro region lighting, Seibon | Inside: M3 cockpit, Recaro SPG, Prototipo, AutoSolutions SSK, UCP | Stop: M3 ST-40R, PFC | Grip: Solid-mounted subframes, rear coilover conversion, M3 Nitron R3, Hyperco, SPL, AKG, ARC8 | Go: StageFP, CF snorkel, 3IM, MILVs, SuperSprint headers, Dundon Motorsports Inconel exhaust, VoltPhreaks | Cool: CSF | PCA #2018100384 | BMW CCA #505794 |
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08-06-2019, 04:19 AM | #7 | |
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Also Ms dont come with RFT tries. Also Also you need to compare 20" ARCs to 18" or 17" ARCs not really a fair comparison otherwise. For OPs purposes a 2nd set of OEM 19s should fit the bill nicely as a balance between improved performance and cost if he is serious about Auto Xing repeatedly. If OP is just starting out in Auto X/trackdays then 20s on any tire are fine for a session or two but will quickly get expensive as you correctly note. |
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