03-20-2024, 11:30 AM | #1 |
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My 295/30/18 SQUARED setups
I've ran several staggered setups, from stock 437Ms and 666Ms to 19x9.5 and 19x10.5 Rays ZE40s and TE037s, but seemed to struggle with understeer with those setups. I've since moved to 18x10.5 +22 squared with 295/30/18 tires. This is not a setup that I see commonly run, so I thought I'd share my own two cents.
Suspension: - Swift lowering springs (stock EDC struts) - Millway camber plates Camber: -4 F, -3 R Toe: 0 F, 0 R A 12mm spacer is being run up front to allow the wheel to clear the factory strut. Proven tire setups that don't rub: - 295/30/18 Yokohama Advan A052 - 295/30/18 Bridgestone Potenza RE-71RS There is a bit of poke with these tire setups. It looks like it would rub, but under compression the wheels camber in just enough to clear the fenders. Next, I will try the Kumho V730 in the max size, 275/35/18, which will 100% clear, but also allow me to run less camber. The current amount of camber is not maximizing the full tire width, but is required to clear the fenders. Hope this information helps! A052: RE-71RS: |
03-20-2024, 10:45 PM | #2 |
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You should check this thread when you have a chance.
https://f80.bimmerpost.com/forums/sh....php?t=1555419 If you're up for new wheels, you should give 10.5et34-36 a try. Much easier fitment in the rear and easy to fit in front w/ spacer.
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03-21-2024, 09:16 AM | #3 |
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Definitely check out the thread RugbyBro linked. It has all of the numerous setups people have found to work well on the f8x.
You’re running excessive rear camber, along with front camber that’s on the high side, just to run your wheels with aggressive offsets. I bet the front tire will work better with -3.25 deg to -3.5 deg. The rear should be closer to -2.0 deg. You can definitely get more out of the tires with less front and rear camber. You have to run a 10.5et10 with 295 tire to clear the front strut? I know the stock strut creates a clearance issue but I thought it wasn’t that bad. The a052 runs a bit on the wide side - is it the tire sidewall or the strut/spring that causes the interference issue? |
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03-21-2024, 01:37 PM | #4 | |
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I've looked at that forum before but when purchasing my BBS, that offset is not very common/readily available. |
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03-21-2024, 01:43 PM | #5 | |
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The wheel and sidewall don't clear the strut itself. Here are some photos of the clearance with a 12mm spacer. |
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03-21-2024, 02:01 PM | #6 | |
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BTW, is that a VOLTEX rear wing? if not, what is it?
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03-21-2024, 02:45 PM | #7 | ||
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Quote:
https://www.turnermotorsport.com/p-5...f82-m4-f87-m2/ |
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03-21-2024, 03:12 PM | #8 |
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Aint that the unfortunate truth! The bigger volume manufacturers are more concerned with maximizing fitment across generations rather than the most proper chassis specific offsets. The apex guide that so many seem to reference doesn't even mention the +33-36 offset range as the optimal square fitment.
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03-21-2024, 03:20 PM | #9 | |
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Also it's a Voltex replica with genuine Laptorr stands. I didn't want to wait 18 months haha. |
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03-21-2024, 03:22 PM | #10 | |
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I might be interested in your spare one. Let me know. |
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03-21-2024, 04:35 PM | #11 | |
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I’ll look for the Turner 7.5 mm spacer with integrated hub extender. Actually, I have both 5 mm and 7.5 mm Turner spacers I’m not using. |
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03-21-2024, 04:44 PM | #12 |
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It's been a long time since I've seen an M4 that looks so sharp, the rear spoiler is incredible, you can use adjustable arms on the front and thus reduce the aggressive camber.
If the car were mine, this is what I would do without hesitation because otherwise it is perfect in all aspects. |
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03-21-2024, 08:31 PM | #13 | |
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It's helpful to have 1, 2, 3, 5, 7 mm spacers when trying to push the envelope with fitments |
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03-21-2024, 09:31 PM | #14 |
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I know ECS sells/rents a spacer fitment kit now but I’d assembled my own kit long before ECS did. Never thought about selling them to other people. At the time, I thought I was the only one with a serious wheel problem, at least that’s what my wife called it. I told her we both a “shoe” problem with the difference being mine went on cars, hers went on feet
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03-21-2024, 09:42 PM | #15 | |
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03-21-2024, 09:44 PM | #16 | |
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Do you think 3mm would prevent rubbing even with track driving and autocross? I would hate to have a tire failure on track. |
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03-21-2024, 10:06 PM | #17 | |
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03-21-2024, 10:12 PM | #18 |
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03-21-2024, 10:34 PM | #19 | |
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03-22-2024, 11:06 AM | #20 | |
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03-31-2024, 09:19 PM | #21 |
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M3SQRD MineralWhiteF80 SYT_Shadow
Maybe you guys can point me in the right direction please. Your responses seem to be about clearance between the FRONT strut tube and tire. But how much minimum clearance is “safe” to have between the REAR tire and REAR strut tube on a f82 M4 with 20” Competition wheels that is moderately lowered. For the sake of this, Assume the car is already on the ground, so suspension is loaded. Is 3mm still a minimum to target? |
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04-01-2024, 12:13 PM | #22 | |
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