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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Wheels and Tires Forum Sponsored by The Tire Rack > Need help with offset/spacers needed! Pics included



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      12-04-2009, 05:02 PM   #1
funkedelic
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Need help with offset/spacers needed! Pics included

Hey guys so im trying to figure out what kind of spacer to run. I am running BBS Lm reps. Here are the specs on the wheels:

19x8.5 fronts and 19x10 rears
+35 fronts and +38 rears

I am trying to figure out what spacers to use in the rear. I was thinking 15mm spacers but i don't know if that will be too much. I am going to be installing my KW V2's soon and plan on going pretty low and i want to do my best to avoid rolling my fenders.

Im also wondering if i should run a spacer on the front or not.

Im including pics to show what the wheels currently look like. All comments/advice and help is appreciated.

Thanks!




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      12-04-2009, 05:35 PM   #2
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5mm spacer in the front and if you have rolled fenders you can run a 5mm in the rear

Anything more than a 5mm in the rear is gonna cause you rubbing if you don't have an aggressive alignment
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      12-04-2009, 05:36 PM   #3
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Is this purely for looks, or is it for performance reasons?

For looks, just measure the distance from the vertical surface of the sidewall to the edge of the outside fender. THAT distance plus 2-3mm is the optimal spacer you need to run. Reason being, as you lower the car your negative camber will increase, thereby tucking in the top of the tire as your suspension compress, so you can actually run a couple of millimeters outside the fender and still not rub ON THE STREET.

For performance? I wouldn't add spacers.
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      12-04-2009, 05:41 PM   #4
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its purely for looks. 5mm? Thats hardly noticeable im wondering if i should even run any at all now. Spacers aren't cheap. I was thinking originally like 12mm spacers.
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      12-04-2009, 05:42 PM   #5
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Quote:
Originally Posted by funkedelic View Post
its purely for looks. 5mm? Thats hardly noticeable im wondering if i should even run any at all now. Spacers aren't cheap. I was thinking originally like 12mm spacers.
you don't wanna run a 12mm in the front, but a 5mm in the front would be noticeable

As for the rear, if you roll your fenders and those are 265's on your car, you may be able to get away with 8's

If you run aggressive camber on top of all that, you can fit a 12mm in the rear.
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      12-04-2009, 06:07 PM   #6
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Quote:
Originally Posted by Zoeb@WheelDude.com View Post
you don't wanna run a 12mm in the front, but a 5mm in the front would be noticeable

As for the rear, if you roll your fenders and those are 265's on your car, you may be able to get away with 8's

If you run aggressive camber on top of all that, you can fit a 12mm in the rear.
Oh i didn't want to run a 12mm in the front! I was thinking of just running spacers in the rear but was considering a spacer in the front as well. 5mm tops.
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      12-20-2009, 01:18 AM   #7
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I’ve got the exact same wheel size/offset as you and im running 235/35-19 fronts and 275/30-19 Falken fk452's on KW V2 coilovers.

I experimented with both 5mm and 10 mm spacer’s front and back. The 10mm spacers rubbed badly in the back on semi hard turns with the dampening set to about 80% 'hard'. I fit the 10mm fronts, but I didn’t bother to drive the car with them on due to fear of damaging the plastic front fenders. The 5mm's fit fine both front and back with no rubbing issues, so I went with them.

I wouldnt chance 10mm spacers in the front, but you could make the rears work with a 265/30 tire, coilovers and a fender roll.

Believe it or not, I could visually notice the stance difference with the spacers, even though they were only 5mm's.

Here's a pic so that you can get an idea of my ride height and what the offset looks like with 5mm spacers front and back:
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