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///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

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Old 08-15-2013, 06:59 AM   #1
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Join Date: Feb 2011
Location: Melbourne
Posts: 68
My Ride: 911sc. e46m3. E53 x5
Spacers & springs help

Hey guys,

Just changed my wheels to 19"csl reps,

Specs are
19x8.5 et38. 235/35/19 front
19x9.5 et22 275/30/19. Rears

What is the ideal spacer size to fill the guards a bit more, but dont really want to roll the fenders , I'm planning to lower the car with either h&r sport or vogtland springs.

I was thinking 10mm spacer all round?

Any thoughts?
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Old 08-15-2013, 01:55 PM   #2
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Join Date: Nov 2010
Location: Oregon
Posts: 836
My Ride: 02' SMG M3
go measure from your sidewall of the tire to the inside of your fender edge, that'll be your spacer size that you can do.. 10mm's going to probably put your rear close, but with the springs you'll gain a bit of camber.

I also suggest you upsize your front tires if they aren't brand new, your stagger is too far and will make your DSC too twitchy sometimes. You should be running a 255/275 combo, you have almost 2" in difference.
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Old 08-15-2013, 02:18 PM   #3
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Join Date: Dec 2011
Location: texas
Posts: 685
My Ride: a horse
245/275 is better and the 19x8.5 front should be running with 245, not 255.
02AccordV6(sold) 03350zMT(sold) 04E46///M3MT(sold) 06RSXauto 07G35auto
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Old 08-15-2013, 10:11 PM   #4
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Join Date: Nov 2010
Location: Oregon
Posts: 836
My Ride: 02' SMG M3
What info validates this?

225/40/19, circumference: 82.0"
255/35/19, circumference: 81.8"

My suggested specs
255/35/19, circumference: 81.77" - difference of .23" to OEM
275/30/19, circumference: 80.09" - difference of 1.71" to OEM

Your suggested specs
245/35/19, circumference: 80.92" - difference of 1.08" to OEM
275/30/19, circumference: 80.09" - difference of 1.71" to OEM

So no, 255/275 keeps rotating circumference closer, and keeps DSC happy as well. A 265/275 would be even better, but that's pushing the front tire on 8.5" wheels since thats a 10.43" tire, however it's circumference is 82.63" so very very close to the OEM specs.

A 255 fits perfect on an 8.5" wheel, it's not even 3/4" wider on each side than the wheel so no stretch, but not ballooned..

Last edited by Moosecakes; 08-15-2013 at 10:14 PM.
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Old 08-16-2013, 09:52 AM   #5
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Join Date: Nov 2010
Location: Chicago Downtown
Posts: 49
My Ride: 02 PY M3
10mm front, 5mm rear, but what i would do, buy 10mm spacers or borrow from someone, and try it out. Personally, I hate spacers, i'm running none, 9.5 front 11 rear with stretched tires, no rubbing issues.

Der Teufel steckt im Detail.

Last edited by MemphisM3; 08-16-2013 at 09:54 AM.
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