Rear wheel fitment | Camber

M3_JT · 05-03-2018, 12:52 PM

What's up folks,

Here's the issue.

I finally received my Brixton's CM10 in 20x9.5 ET18 / 20x11 ET35, and I originally was running the recommended 265/30/20 front 295/30/20 rear, Michelin Pilot Sport 4S. I'm lowered on H&R Sport springs with OEM struts seeing I have the adaptative suspension.

After doing a bit of research, it seems like the H&R are on the soft side. Basically, the issue is that I kept experiencing rubbing on the inner part of the rear bumper, even after two alignments to play with the camber. My tech told me the best he could do in terms of camber is 2.4, then the toe would be off.

There's no way in hell I'll deal with rubbing, so I got 285/30/20 right away not to jeopardize the tire wall.

The 295 / 285 pictures are attached.

Obviously, the 295 look much better, but there's no way I'll deal with rubbing.

Basically, I'm looking for all the options possible that aren't "Get KW V3's" seeing I'm located in Montreal and drive the car year round.

Change the H&R springs for Macht Schnell?
Are there rear camber plates / toe adjustment options, and who's running it?
What are the lowered on spring alignment specs I should try to get?
Should I simply run the 285 and movement on?

All comments are more than welcome

x.shell · 05-03-2018, 01:10 PM

295 looks better for sure. If you want to dial in more negative camber on the rear wheel while retaining usable toe settings, you need to get some toe links. The good thing is that these are relatively inexpensive, easy to install, and your alignment guy will thank you for it.

As far as H&R goes, you'd do well to replace them with anything; literally, anything else. H&R springs with OEM shocks run like shit.

LeFort One · 05-04-2018, 01:15 AM

^Agreed. HR sport springs are known to be soft as tofu. Their springs also drop your car more than others so not surprising you are rubbing.

I'm running swift springs on 20x11 et37 with 295/30 PSS no rub. Camber is set -1.8. Hope that helps!

CanAutM3 · 05-04-2018, 05:16 AM

ET35 is too aggressive for meaty tires. Apex did some extensive testing and figured ET44 to be the ideal offset to fit the widest possible tire wthout rubbing.

Circuit Hunter · 05-04-2018, 05:31 AM

Have you checked what is actually rubbing? Is it the metal fender or the fender liner? If it’s the fender liner, and you are ok with it, you can either let it rub through or trim it.

Although 20x11 ET35 is about 5mm too aggressive, I’d be shocked if you were hitting metal while “only” running a 295.

Good luck.

M3_JT · 05-04-2018, 07:43 AM

Here's the part where its rubs, it's actually on the bumper and not on the fender. If you look closely to the picture of the inside of the fender / bumper, you see where it thinned.

I'm very aware +35 on a 295 is agressive, but I also see a lot of the fitment-oriented guy (dubsesd for instance) running much more agressive setups such as 305/30/20 on a 11.5" wheel with a +37 ET.

I think the problem really is with the H&R - to add to the picture, it looks like the rear passenger side is even lower than the driver's - I'll add the pictures from both sides so you can compare, pay attention to the Michelin logo.

M3_JT · 05-04-2018, 07:52 AM

Rear driver and passenger height (I didn't measure it, but there's an obvious difference).

M3_JT · 05-04-2018, 07:54 AM

Quote:

Originally Posted by CanAutM3

ET35 is too aggressive for meaty tires. Apex did some extensive testing and figured ET44 to be the ideal offset to fit the widest possible tire wthout rubbing.

Keep in mind this is for every day driving, and because I love the look of it. When I go to Tremblant, I obviously run a different setup...

Circuit Hunter · 05-04-2018, 08:45 AM

The passenger side is always lower on these cars. FYI the 305 guys run a 25 series tire. The overall diameter of the rear is making the offset a challenge. From the looks of it you may need to stick with the 285 rear or change springs to something with less drop. Although with your car full of passangers you may experience the same issue as your are now.

M3_JT · 05-04-2018, 08:55 AM

Quote:

Originally Posted by Circuit Hunter

The passenger side is always lower on these cars. FYI the 305 guys run a 25 series tire. The overall diameter of the rear is making the offset a challenge. From the looks of it you may need to stick with the 285 rear or change springs to something with less drop. Although with your car full of passangers you may experience the same issue as your are now.

Usually, my car is a 2-seater, seeing I have two daughters that are gowing up (and their kids seats), but weight barely more than a few feathers. I'm not too concerned about the extra weight.

I'm definitely planning on changing the springs, I'm going with Macht Schnell, which gives a smaller drop in the rear and will be stiffer than the H&R. I'll also add adjustable toe links to add a tad more camber (if required) - I feel that a -3° (compared to the -2.4 I have right now) would fix the problem.

It's really a matter of fine tuning at this point, but I'm OCD and I want to find a solution

Circuit Hunter · 05-04-2018, 09:03 AM

Good luck. I don’t have experience with rear toe links with the two lowered F80’s I’ve owned but if they can get you said camber it may save you from needing a spring swap. With that being said a firmer spring should add performance unlike the H&R. I’ve been very happy with the Mperformance.

M3_JT · 05-04-2018, 09:10 AM

Quote:

Originally Posted by Circuit Hunter

Good luck. I don’t have experience with rear toe links with the two lowered F80’s I’ve owned but if they can get you said camber it may save you from needing a spring swap. With that being said a firmer spring should add performance unlike the H&R. I’ve been very happy with the Mperformance.

Either way, I'm still swapping the springs - the uneven rake has been bugging me since day one.

Thanks!

neverhadm3 · 05-04-2018, 09:56 AM

Quote:

Originally Posted by M3_JT

Either way, I'm still swapping the springs - the uneven rake has been bugging me since day one.

Thanks!

I had similar issues on my setup recently. I looked just installed spring spacers from emmanuel design and that fixed the problem. You don't have to go with that brand as mine did come out a little higher than I wanted. But I'm hoping since the spacers are rubber that it will settle. I read in a couple of forums that they do sit lower after a few weeks of driving. That may be something you can look into as well.

I'm on swifts and my wheels are Signature SV104 10.5 ET 32 in the rear with pilot 4s

M3_JT · 05-04-2018, 09:58 AM

Quote:

Originally Posted by neverhadm3

I had similar issues on my setup recently. I looked just installed spring spacers from emmanuel design and that fixed the problem. You don't have to go with that brand as mine did come out a little higher than I wanted. But I'm hoping since the spacers are rubber that it will settle. I read in a couple of forums that they do sit lower after a few weeks of driving. That may be something you can look into as well.

I'm on swifts and my wheels are Signature SV104 10.5 ET 32 in the rear with pilot 4s

What tire size are you running?

neverhadm3 · 05-04-2018, 09:59 AM

Quote:

Originally Posted by M3_JT

Quote:

Originally Posted by neverhadm3

I had similar issues on my setup recently. I looked just installed spring spacers from emmanuel design and that fixed the problem. You don't have to go with that brand as mine did come out a little higher than I wanted. But I'm hoping since the spacers are rubber that it will settle. I read in a couple of forums that they do sit lower after a few weeks of driving. That may be something you can look into as well.

I'm on swifts and my wheels are Signature SV104 10.5 ET 32 in the rear with pilot 4s

What tire size are you running?

295 30 20

LOW4LYF · 05-08-2018, 08:56 PM

I'm really supriced the tire is rubbing.

I'm running 305/30 on a 12"... Had some issues on the inner fender but it's fixed now...

Btw... F80/F82 fitment isn't the same anyway...

https://ibb.co/cTLBW7

TTR · 05-08-2018, 09:32 PM

OFFSET is not good, i have 11.5 with 295 Trofeo R and no rubbing at all

ET is 49

M3_JT · 05-08-2018, 09:35 PM

Quote:

Originally Posted by TTR

OFFSET is not good, i have 11.5 with 295 Trofeo R and no rubbing at all

ET is 49

These wheels were made for the F8X platform (flush fitment) so it's a matter of fine tuning.

Some guys run 305's on an 11.5 wheel and a +37 offset. I should be able to pull it off.

pzz67 · 05-08-2018, 09:56 PM

I got a f80 m3 on Vorsteiner VFF102 20x10.5 +35 and 295/30/20 tires with Siwft spec R springs.

Im rubbing on the back when i go on uneven surfaces or sudden dips on the road. -2 camber on the driver side and -1.54 on the passenger side and both sides rub.

M3_JT · 05-08-2018, 10:01 PM

Quote:

Originally Posted by pzz67

I got a f80 m3 on Vorsteiner VFF102 20x10.5 +35 and 295/30/20 tires with Siwft spec R springs.

Im rubbing on the back when i go on uneven surfaces or sudden dips on the road. -2 camber on the driver side and -1.54 on the passenger side and both sides rub.

I barely rubbed on the passenger side with a -2.4 camber on 11" ET35. I'm sure I'll fix it with adjustable toe links and a tad more camber, the 295 just look way too good not to do it.

LeFort One · 05-09-2018, 01:38 PM

Quote:

Originally Posted by Figurka

I'm really supriced the tire is rubbing.

I'm running 305/30 on a 12"... Had some issues on the inner fender but it's fixed now...

Btw... F80/F82 fitment isn't the same anyway...

https://ibb.co/cTLBW7

Very nice, what size offsets on the 12 inch rears?

05-03-2018, 12:52 PM	#1
M3_JT Private 16 Rep 97 Posts Drives: 2015 M3 Join Date: Dec 2016 Location: MTL iTrader: (0)	Rear wheel fitment \| Camber \| Rubbing issues What's up folks, Here's the issue. I finally received my Brixton's CM10 in 20x9.5 ET18 / 20x11 ET35, and I originally was running the recommended 265/30/20 front 295/30/20 rear, Michelin Pilot Sport 4S. I'm lowered on H&R Sport springs with OEM struts seeing I have the adaptative suspension. After doing a bit of research, it seems like the H&R are on the soft side. Basically, the issue is that I kept experiencing rubbing on the inner part of the rear bumper, even after two alignments to play with the camber. My tech told me the best he could do in terms of camber is 2.4, then the toe would be off. There's no way in hell I'll deal with rubbing, so I got 285/30/20 right away not to jeopardize the tire wall. The 295 / 285 pictures are attached. Obviously, the 295 look much better, but there's no way I'll deal with rubbing. Basically, I'm looking for all the options possible that aren't "Get KW V3's" seeing I'm located in Montreal and drive the car year round. Change the H&R springs for Macht Schnell? Are there rear camber plates / toe adjustment options, and who's running it? What are the lowered on spring alignment specs I should try to get? Should I simply run the 285 and movement on? All comments are more than welcome Attached Images
	Appreciate 0 Tweet Quote

05-03-2018, 01:10 PM	#2
x.shell ▆ ✚✚ ▆▆▆▆▆▆ 6580 Rep 5,304 Posts Drives: ▋ ▉▉ Join Date: Nov 2012 Location: ▆▆▆ ▆▆▆ ▆ iTrader: (3)	295 looks better for sure. If you want to dial in more negative camber on the rear wheel while retaining usable toe settings, you need to get some toe links. The good thing is that these are relatively inexpensive, easy to install, and your alignment guy will thank you for it. As far as H&R goes, you'd do well to replace them with anything; literally, anything else. H&R springs with OEM shocks run like shit.
	Appreciate 2 M3_JT16.00 AlterZgo1537.50 Quote

05-04-2018, 01:15 AM	#3
LeFort One Second Lieutenant 151 Rep 268 Posts Drives: 2016 F80 M3 Join Date: Aug 2015 Location: Los Angeles, California iTrader: (3)	^Agreed. HR sport springs are known to be soft as tofu. Their springs also drop your car more than others so not surprising you are rubbing. I'm running swift springs on 20x11 et37 with 295/30 PSS no rub. Camber is set -1.8. Hope that helps! __________________ 2016 Alpine White F80 \| Individual Opal Interior \| BBS LM-R \| Dinan Exhaust \| Active Auto Midpipe \| V-Style Lip \| Vorsteiner Rear Diffuser \| M-Performance Spoiler \| IND Alpine White Grills \| Swift Springs \| Instagram: S55Journal
	Appreciate 2 M3_JT16.00 unleashed79.00 Quote

05-04-2018, 05:16 AM	#4
CanAutM3 General 21117 Rep 20,741 Posts Drives: 2021 911 turbo Join Date: Jan 2012 Location: Montreal iTrader: (1) Garage List 2022 Audi RS6 [10.00] 2021 Porsche 911 turbo [10.00]	ET35 is too aggressive for meaty tires. Apex did some extensive testing and figured ET44 to be the ideal offset to fit the widest possible tire wthout rubbing. __________________ Porsche 911 turbo 2021 992 GT Silver Previous cars: M4cs 2019 F82 Limerock Grey / M4 2015 F82 Silverstone / M3 2008 E92 Silverstone / M3 2002 E46 Carbon Black
	Appreciate 1 M3_JT16.00 Quote

05-04-2018, 05:31 AM	#5
Circuit Hunter Lieutenant 370 Rep 488 Posts Drives: F80 M3 Join Date: Jan 2017 Location: Southern Cal. iTrader: (0)	Have you checked what is actually rubbing? Is it the metal fender or the fender liner? If it’s the fender liner, and you are ok with it, you can either let it rub through or trim it. Although 20x11 ET35 is about 5mm too aggressive, I’d be shocked if you were hitting metal while “only” running a 295. Good luck.
	Appreciate 1 M3_JT16.00 Quote

05-04-2018, 07:43 AM	#6
M3_JT Private 16 Rep 97 Posts Drives: 2015 M3 Join Date: Dec 2016 Location: MTL iTrader: (0)	Here's the part where its rubs, it's actually on the bumper and not on the fender. If you look closely to the picture of the inside of the fender / bumper, you see where it thinned. I'm very aware +35 on a 295 is agressive, but I also see a lot of the fitment-oriented guy (dubsesd for instance) running much more agressive setups such as 305/30/20 on a 11.5" wheel with a +37 ET. I think the problem really is with the H&R - to add to the picture, it looks like the rear passenger side is even lower than the driver's - I'll add the pictures from both sides so you can compare, pay attention to the Michelin logo. Attached Images Last edited by M3_JT; 05-04-2018 at 07:50 AM..
	Appreciate 0 Quote

05-04-2018, 07:52 AM	#7
M3_JT Private 16 Rep 97 Posts Drives: 2015 M3 Join Date: Dec 2016 Location: MTL iTrader: (0)	Rear driver and passenger height (I didn't measure it, but there's an obvious difference). Attached Images
	Appreciate 0 Quote

05-04-2018, 08:45 AM	#9
Circuit Hunter Lieutenant 370 Rep 488 Posts Drives: F80 M3 Join Date: Jan 2017 Location: Southern Cal. iTrader: (0)	The passenger side is always lower on these cars. FYI the 305 guys run a 25 series tire. The overall diameter of the rear is making the offset a challenge. From the looks of it you may need to stick with the 285 rear or change springs to something with less drop. Although with your car full of passangers you may experience the same issue as your are now.
	Appreciate 0 Quote

05-04-2018, 09:03 AM	#11
Circuit Hunter Lieutenant 370 Rep 488 Posts Drives: F80 M3 Join Date: Jan 2017 Location: Southern Cal. iTrader: (0)	Good luck. I don’t have experience with rear toe links with the two lowered F80’s I’ve owned but if they can get you said camber it may save you from needing a spring swap. With that being said a firmer spring should add performance unlike the H&R. I’ve been very happy with the Mperformance.
	Appreciate 1 M3_JT16.00 Quote

05-08-2018, 08:56 PM	#16
LOW4LYF Brigadier General 2163 Rep 4,107 Posts Drives: E92 M3 & F85 X5M Join Date: Jul 2016 Location: @Home iTrader: (1)	I'm really supriced the tire is rubbing. I'm running 305/30 on a 12"... Had some issues on the inner fender but it's fixed now... Btw... F80/F82 fitment isn't the same anyway... https://ibb.co/cTLBW7
	Appreciate 1 M3_JT16.00 Quote

05-08-2018, 09:32 PM	#17
TTR Captain 307 Rep 608 Posts Drives: m3 f80, X3M, Huracan perf, 1m Join Date: Jul 2017 Location: Portugal - Lisboa iTrader: (0)	OFFSET is not good, i have 11.5 with 295 Trofeo R and no rubbing at all ET is 49
	Appreciate 0 Quote

05-08-2018, 09:56 PM	#19
pzz67 Enlisted Member 12 Rep 28 Posts Drives: 2015 f80 bmw m3 Join Date: Feb 2018 Location: new zealand iTrader: (0)	I got a f80 m3 on Vorsteiner VFF102 20x10.5 +35 and 295/30/20 tires with Siwft spec R springs. Im rubbing on the back when i go on uneven surfaces or sudden dips on the road. -2 camber on the driver side and -1.54 on the passenger side and both sides rub.
	Appreciate 0 Quote