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Old Wed, May-25-2011, 10:14:58 PM   #1
bimmerfan08
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Default Need advice on square setup. Thanks

Recently I decided to run a square OEM 18 wheel setup with 265/35/18. Im still on stock suspension and plan to stay like this for awhile until Im out of college and making more money (Id rather spend my money on keeping the car running then blowing on mods for now, so please understand my situation). Anyhow I wanted to know what exactly are the preferred camber settings for a square setup on stock height? right now im at the factory camber settings. Also my fronts stick out a little more than my rears...should I go with hubcentric spacers in the rear such at 15mm? Any help and input would be greatly appreciated and responses with explanations would be greatly favored. Thanks guys.
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Old Thu, May-26-2011, 12:53:20 AM   #2
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Default Re: Need advice on square setup. Thanks

Yes, you could use spacers. You've effectively widened the front end by whatever (in addition to adding a bigger contact patch), so the rear could use a little extra grip as well.

Pull the pins, max out front camber and get the rear aligned in proportion with what you can get the front to.
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Old Thu, May-26-2011, 01:14:48 AM   #3
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Default Re: Need advice on square setup. Thanks

what's your purpose or goal for the car? Is it for looks or for performance (on the track or just street)?
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Old Thu, May-26-2011, 03:55:21 AM   #4
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Default Re: Need advice on square setup. Thanks

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what's your purpose or goal for the car? Is it for looks or for performance (on the track or just street)?
performance...if it was for looks, I wouldve gone with different wheels
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Old Thu, May-26-2011, 01:31:08 PM   #5
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Default Re: Need advice on square setup. Thanks

I would say just max front negative camber (madrussian DIY) and leave everything else as-is.

You could do rear spacers (although 15mm seems borderline too large for fender interference? I could be wrong) and a rear alignment, but neither are "necessary". That is, as long as your rear alignment isn't eating tires, etc.

When I was in your position (albeit on MT1s, 9.5 et35) that's what I did, although I had a 15mm spacer in rear for total et20. Now that I'm lowered, even with -2* in the rear and a 12mm spacer the tire is very close to the fender - 15mm with OEM 18s (total would be et12 IIRC?) would definitely have a problem I think.
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Old Fri, May-27-2011, 12:20:57 AM   #6
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Default Re: Need advice on square setup. Thanks

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Originally Posted by jph28 View Post
I would say just max front negative camber (madrussian DIY) and leave everything else as-is.

You could do rear spacers (although 15mm seems borderline too large for fender interference? I could be wrong) and a rear alignment, but neither are "necessary". That is, as long as your rear alignment isn't eating tires, etc.

When I was in your position (albeit on MT1s, 9.5 et35) that's what I did, although I had a 15mm spacer in rear for total et20. Now that I'm lowered, even with -2* in the rear and a 12mm spacer the tire is very close to the fender - 15mm with OEM 18s (total would be et12 IIRC?) would definitely have a problem I think.
So a 10mm or 12mm spacer would be optimal? Thanks for the explantation
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Old Fri, May-27-2011, 04:54:22 AM   #7
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Default Re: Need advice on square setup. Thanks

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So a 10mm or 12mm spacer would be optimal? Thanks for the explantation
Well, I believe the OEM 18 is a 9", et27 wheel. So compared to a 9.5" et35 it is about 6mm "inboard" from the outer fender due to wheel width and a 8mm farther out due to offset for a total of 2mm closer to the outer fender (someone correct me if I'm wrong). So I'd honestly say "no" spacer is OK, or 10mm at the most, although some will say that 10mm have some problems due to weakness at the hub... I'd honestly say no spacer in the rear
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Old Fri, May-27-2011, 02:24:54 PM   #8
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Default Re: Need advice on square setup. Thanks

I've run square oem 18's with 265/35/18 tyres. I was on stock suspension with max camber from stock adjustments which was about -1.2 at the back. I used a 12mm spacer in the back with no issues. I agree that 15mm would most likely rub.
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Old Fri, May-27-2011, 06:16:35 PM   #9
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Default Re: Need advice on square setup. Thanks

There's a member Blazen XLT or something of that name configuration. Check his Member Journal, I think he ran 12.5mm spacer in the rear with no issues. He was running the exact setup you're speaking of.
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Old Sat, May-28-2011, 04:29:18 AM   #10
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Default Re: Need advice on square setup. Thanks

Quote:
Originally Posted by jph28 View Post
Well, I believe the OEM 18 is a 9", et27 wheel. So compared to a 9.5" et35 it is about 6mm "inboard" from the outer fender due to wheel width and a 8mm farther out due to offset for a total of 2mm closer to the outer fender (someone correct me if I'm wrong). So I'd honestly say "no" spacer is OK, or 10mm at the most, although some will say that 10mm have some problems due to weakness at the hub... I'd honestly say no spacer in the rear
Thanks for the response, Im actually trying to push the tire out and make it fill the wheel well similar to the front.

Quote:
Originally Posted by mustangkev View Post
I've run square oem 18's with 265/35/18 tyres. I was on stock suspension with max camber from stock adjustments which was about -1.2 at the back. I used a 12mm spacer in the back with no issues. I agree that 15mm would most likely rub.
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Originally Posted by vtn86 View Post
There's a member Blazen XLT or something of that name configuration. Check his Member Journal, I think he ran 12.5mm spacer in the rear with no issues. He was running the exact setup you're speaking of.
Thanks for the responses guys, I look into it.
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Discussing Need advice on square setup. Thanks in the M3 Track: Racing and DE Forum - Best mod for speed is learning to get the most out of what you currently have. Tracks and DE's is the place to start! at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)