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Spacers, how do i work out which ones?
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03-06-2011, 02:30 PM | #1 |
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Spacers, how do i work out which ones?
Hi guys, I'm running some BBS CHs on my 320D and the rears could do with some spacers
How do i work out which ones I need, the size I mean. I want to mock up variois sizes to see which one i like the look of, do i buy crappy alu dpacers from ebay to get the right mm then bus hubcentrics? Or could i use washers? Am not planning on driving it on them, just want to push the wheel out to see what they look like?!?! Any help appreciated ;p
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Pre LCI 320D MSport | LeMans Blue | BBS CH's | Yellow Magic Tree Last edited by Muz; 03-06-2011 at 02:31 PM.. Reason: Spelling |
03-06-2011, 03:42 PM | #2 |
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03-06-2011, 04:47 PM | #3 |
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What width are your back wheels? What is the offset? What width tyres?
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03-07-2011, 12:18 PM | #5 |
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03-07-2011, 12:20 PM | #6 |
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Thats the propper size tyre for a 9.5 wide alloy. Fitting a 5mm spacer will bring the 40mm offset down to an ideal et35. The outside edge will extend an extra 10mm over oem
If you want to go for a more aggressive look, fit a 10mm spacer to bring the offset down to et30. Shouldnt cause any rubbing issues on the e90. Last edited by Nick999; 03-07-2011 at 02:53 PM.. |
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03-07-2011, 12:28 PM | #7 | |
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Surely if you put a 5mm spacer in it will make 5mm of a difference and not 10mm? I guess you mean 10mm wider track rather that each wheel sitting 10mm closer to the arch? |
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03-07-2011, 12:39 PM | #8 | |
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The aftermarket et40 alloy is just 5mm closer to arch than the oem alloy, so by fitting a 5mm spacer will bring this wheel an extra 5mm closer to wheel arch. I guess we are both right |
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03-07-2011, 01:19 PM | #9 |
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5mm doesn't seem like it would push them out enough, is a 5mm what most people run with this setup?
I was thinking at least a 12mm on each side :s
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Pre LCI 320D MSport | LeMans Blue | BBS CH's | Yellow Magic Tree Last edited by Muz; 03-07-2011 at 01:20 PM.. Reason: Iphone spelling!! |
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03-07-2011, 01:23 PM | #10 |
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The following images are of my previous car with rears of 19" x 9.5" (ET36); 265/30 x 19 tyres and a 12mm spacer . For the same effect (approximately), you would need a 15mm spacer with your ET40 offset. The spacers were Eibach hub centric with extended bolts.
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03-07-2011, 02:58 PM | #11 |
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12mm spacers will bring you down to a very aggressive offset of et28. Almost the same as M3 et27. Will look very mean, but may rub your wheel arches? Certanly would on the e92/93 models, but you my be OK with the e90 saloon.
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03-07-2011, 03:29 PM | #12 | |
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03-08-2011, 08:17 AM | #13 |
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I only ever have the missus and or a baby in the back
12mm it is ;p
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03-08-2011, 10:24 AM | #14 |
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03-09-2011, 10:30 AM | #16 |
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As an average driver, I don't think the spacers are an improvement nor a detriment to the handling. However, I'm sure that a much better driver than me might be able to detect some difference to the handling due to the increased track width.
One thing that I can add is that in my experience, using 5mm spacers gave significant vibration at higher speeds (even when only fitted to the rears) as the OEM hub centering lip is barely deep enough to accommodate the spacer and centre the wheel (including the bevel) at the same time. This is a shame as a 5mm spacer is a decent, subtle modification. My motivation for fitting spacers is for purely aesthetic reasons. |
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03-09-2011, 12:17 PM | #17 |
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