08-20-2021, 08:28 AM | #133 | |
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With the spring perch out of the way I will have way more room. So the real trick here guys! You can run square anything from 18x10et40s 513 wheels to 18x9et22. The major trick is to make sure the spring perch is above the tire or near the top of the tire when you are running a wider wheel and tire. |
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08-20-2021, 08:36 AM | #134 | |
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aatlas196.50 |
08-20-2021, 09:15 AM | #135 | ||
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The thing with the KW clubsport is I'm going to be at the top of the perch threads. So my ride height will be slightly dictated by the spring height and how much a spring will sag. That's why I ordered a 6" and 5.5". If I need to order more springs I will. They are cheap enough that I'm less concerned. I also ordered the pre machined kw 60mm spring perch from HP Autosport. I'll have everything by Monday and I have a fender rolling appointment next weekend. So I'll finally get all this done next week. The kw spring that comes in the clubsport kit is 6.61" long. I'm pretty certain this will dial it in and allow clearances everywhere. |
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08-20-2021, 10:06 AM | #136 | |
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let us know how you get on with the fender rolling! i might need to do some of that.. |
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08-20-2021, 10:16 AM | #137 |
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@MrLizzzard I'm glad I have a solution now too.
This was really bothering me. I hope this information helps future owners. I wasn't willing to compromise tire width. I want to run 275 square. If not bigger! Definitely not narrower lol. After seeing a car on 295 square I knew it could be done. Lesson learned. Spring perch needs to be above the tire. |
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08-20-2021, 10:51 AM | #138 | ||
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Glad you hear you are getting close on your setup!
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08-20-2021, 12:35 PM | #139 | |||
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I don't know what the kw clubsport camber plates max out at for negative camber. But with them maxed out negative it still visually looks close to the fender. I'm not aligning the car until I have everything done. I think the clubsport camber plate is somewhat limited in negative camber. Because with it maxed out the front wheels don't look like they have that much negative camber. |
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08-21-2021, 10:16 AM | #140 | |||
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08-21-2021, 06:54 PM | #141 |
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For anyone looking to run a shorter spring on kw clubsports this is the spring I'm running. Also a really neat pass through socket set from Amazon. This allowed me to safely remove the camber plates.
I now have plenty of inboard tire/spring clearance! Next weekend roll the fenders and we should be good to go on the square set up. |
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Rundskop148.00 |
08-21-2021, 10:12 PM | #142 |
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Same. There's no reason to roll fenders with a 275/35 setup. because of my Öhlins, I am running an effective +15 on a 10" wheel with a 275/35 tire and -3.2º of camber—no issues on track.
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08-21-2021, 11:04 PM | #143 | |
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To each there own. I am rolling my fenders for every extra bit of clearance I can get. |
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08-22-2021, 07:47 AM | #144 | |
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My OG is a hair less effective negative than M1500Z is in the front - at minimal strut clearance the hoosiers cleared the fenders no issue. With fender rolling should have plenty of room. I would drop down to 265 fronts on the street though just to gain a bit more room.
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08-22-2021, 09:09 PM | #146 |
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For those curious.
Fall Line is running 18x10.5 square with 295/30 A7 on their M2CSR. Front spacer is the oem 41 mm, and rear is 7mm. Edit: Corrected to 41mm
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mcvaughan704.00 |
08-23-2021, 07:25 PM | #147 |
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That's a massive spacer.
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08-24-2021, 10:02 PM | #149 |
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It's the BMW oem spacer for the M2CSR, it's how it comes from the factory. The rear spacer is the unique part. That's not oem.
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08-25-2021, 12:03 PM | #150 |
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Stupidest wheel setup ever with a 41mm spacer. I don't care if it's bmw or Joe Schmo…41mm is wildly excessive to enable tire rotations. The car clearly needs different spec'd front and rear wheels.
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08-25-2021, 12:57 PM | #151 | |
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Edit: Just spoke with buddy that's very familiar with M2CSR and the whole front suspension is unique to pull the spindle inward. This won't be replicable easily in the street M's.
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08-25-2021, 04:54 PM | #152 | ||
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Ideally, the front wheels would have their own unique offset/width compared to the rear. If you need to shorten suspension arms and add wild spacers, you are making compromises FOR A REASON, as stated above.
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08-25-2021, 04:58 PM | #153 | |||
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Nonetheless, I'd still argue professional tean engineers and BMW GT4 engineers are more competent than the forum as to whether there are compromises here.
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08-25-2021, 05:05 PM | #154 | ||||
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If you want max grip (via dialed-in tire width and offset) from the front and rear suspension, you need a non squared non rotate able setup.
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