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10-31-2017, 12:31 AM | #1 |
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255/40 R18 Square Winters E92
Anyone know if 255/40/R18 works on the E92 M3?
I am planning to go square size for this winter. Please let me know if anyone has any experience with this. My car is not lowered. Just factory suspension for now. |
10-31-2017, 10:08 AM | #3 |
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I run 255/40/18 and 235/40/18 on stock wheels for winter. Just one step down from stock. My thought was that thinner cuts through snow better and that the tires should be staggered since the wheels are staggered.
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10-31-2017, 10:33 AM | #4 |
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10-31-2017, 02:20 PM | #5 | |
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I run 225 front and 245 rear on the oem 18's for winter. Works great! |
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10-31-2017, 02:48 PM | #6 |
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10-31-2017, 03:22 PM | #7 |
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Not too wide for sure, but perhaps too tall. 275/35 fits without much rubbing.
You can't do 255/35 all around? |
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10-31-2017, 04:47 PM | #8 |
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11-01-2017, 06:59 AM | #9 | |
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Likely is ok though |
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11-02-2017, 06:10 PM | #10 |
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11-02-2017, 06:53 PM | #11 | |
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http://www.m3post.com/forums/showthread.php?t=1423450 |
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11-03-2017, 02:57 PM | #14 |
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The OE Pressure for the factory 245/40/18 is 33 PSI and the OE Pressure for the 265/40/18 is 35 PSI as seen on the door jamb picture, below. I imagine running 35 PSI would be perfectly fine.
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11-03-2017, 02:58 PM | #15 |
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11-03-2017, 03:30 PM | #16 |
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I run a good old 35 on all my street cars, front and rear. May not be ideal but it's close to correct and very easy to remember
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11-03-2017, 03:35 PM | #17 | |
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Sorry, for some reason I guess I remembered the 19" wheels which have a lower profile than the 18" I also checked the ET and you're good there as well. OEM has ET29 and you're a tiny bit more aggressive, but OEM also has space for like a 20mm spacer (effectively ET09) so you have tons of room everywhere |
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11-03-2017, 03:35 PM | #18 |
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11-03-2017, 04:57 PM | #19 |
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Thanks, my doorjam only showed 19" PSI that's why I didn't know what the 18" pressures were.
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11-03-2017, 07:57 PM | #20 | |
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11-08-2017, 07:58 PM | #21 |
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255/40/18 does not work!! It rubs the liner and maybe the cooler too!
When I turn I hear rubbing noises.. Last edited by GORDON.M3; 11-09-2017 at 09:37 AM.. Reason: correction* |
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