Coby Wheel
BMW Garage BMW Meets Register Today's Posts

Go Back   BMW M3 and BMW M4 Forum > BMW F80 M3 / F82 M4 Forum > BMW M3 (F80) and BMW M4 (F82) General Forum

Post Reply
 
Thread Tools Search this Thread
      05-13-2023, 02:19 AM   #1
arfboy
Private
25
Rep
79
Posts

Drives: F80 M3
Join Date: Jan 2023
Location: CA

iTrader: (3)

Spacer sizes for 763M wheels on OEM suspension

I had 437M wheels with H&R 15mm spacers all around on stock suspension with no problems. I just directly swapped in 763M wheels with the same 15mm spacers and I’m getting major rubbing in both front and rear. Front rubs front wheel well liner. Rear rubs on wheel arch/fender. Tires are MPS4S 265/35/19 front and 295/30/20 rear. I’ve read about others having no issues with the same setup, but I guess I’m unlucky. I plan on using a heat gun to reshape the front plastic liner to fix the front rubbing. Would 10mm spacers all around solve the rear rubbing? Or should I go lower for rears - 5mm or no spacers at all?

Pics:





Last edited by arfboy; 05-13-2023 at 03:41 AM..
Appreciate 0
      05-13-2023, 10:41 PM   #2
spidy512
Captain
United_States
502
Rep
696
Posts

Drives: 2015 f80 M3
Join Date: Oct 2016
Location: East Bay Area, CA

iTrader: (0)

Garage List
2015 BMW M3  [0.00]
Heya.

The profile of the tire looks very square to me. In comparo to my 437m (stock size PS4 with 15mm spacers front and rear, lowered in front), the tire has much more angle, not so square. I would think a 8-10mm spacer would be perfect in the rear.

The front I would do what you are doing. Mold the liner. Again, the frofile of this tire is super square, which is why I think your having the issues. I am sure you know, but the dimensions of same sized tires can vary dramatically from brand to bramd, and even inner brand similar models. You appear to have done your homework. Sorry it didnt work out.

Car look FANTASTIC btw... I love the whole look.

Good luck!

josh
Appreciate 1
HotRodM4691.50
      05-14-2023, 04:10 AM   #3
arfboy
Private
25
Rep
79
Posts

Drives: F80 M3
Join Date: Jan 2023
Location: CA

iTrader: (3)

Quote:
Originally Posted by spidy512 View Post
Heya.

The profile of the tire looks very square to me. In comparo to my 437m (stock size PS4 with 15mm spacers front and rear, lowered in front), the tire has much more angle, not so square. I would think a 8-10mm spacer would be perfect in the rear.

The front I would do what you are doing. Mold the liner. Again, the frofile of this tire is super square, which is why I think your having the issues. I am sure you know, but the dimensions of same sized tires can vary dramatically from brand to bramd, and even inner brand similar models. You appear to have done your homework. Sorry it didnt work out.

Car look FANTASTIC btw... I love the whole look.

Good luck!

josh
Thanks for the feedback! I’m looking at Macht Schnell and I’m stuck between the 10mm and 5mm. I WANT to get the 10mm, but I’m afraid it would still rub… so thinking maybe I’d be safer going with the 5mm.
Appreciate 1
spidy512502.00
      05-14-2023, 08:07 AM   #4
swagon
Major General
swagon's Avatar
No_Country
13568
Rep
8,185
Posts

Drives: F80 6MT
Join Date: Jun 2013
Location: .

iTrader: (0)

stock ride height, oversized tyres sticking out the fenders... don't think it even looks remotely good. take the spacers off and go from there. the sidewalls are so square that they will fill out the fenders well enough, imho.
__________________
Appreciate 2
      05-14-2023, 10:43 AM   #5
spidy512
Captain
United_States
502
Rep
696
Posts

Drives: 2015 f80 M3
Join Date: Oct 2016
Location: East Bay Area, CA

iTrader: (0)

Garage List
2015 BMW M3  [0.00]
Quote:
Originally Posted by arfboy View Post
Thanks for the feedback! I’m looking at Macht Schnell and I’m stuck between the 10mm and 5mm. I WANT to get the 10mm, but I’m afraid it would still rub… so thinking maybe I’d be safer going with the 5mm.
After looking at the rear pic again, I think 5mm would be the safe bet.

Thankfully spacers are not that pricey. I have just about every width as I experimented between the look/fit that I wanted.

I also suggest thinking about a stud conversion while you are getting the spacers. I find having to get new wheel bolts in different lengths is not ideal for a few reasons (especially for wide spacers). Yeah, they are sorta meant for race cars, but I way prefer them and it makes wheel work a breeze. Just my opinion.

looking forward to new pics when you get it settled....

josh
Appreciate 0
      05-15-2023, 02:23 AM   #6
arfboy
Private
25
Rep
79
Posts

Drives: F80 M3
Join Date: Jan 2023
Location: CA

iTrader: (3)

Quote:
Originally Posted by swagon View Post
stock ride height, oversized tyres sticking out the fenders... don't think it even looks remotely good. take the spacers off and go from there. the sidewalls are so square that they will fill out the fenders well enough, imho.
Thanks for the input. Not looking to keep the wheels poking past the fender. Aiming for close to flush without going past.
Appreciate 0
      05-15-2023, 02:25 AM   #7
arfboy
Private
25
Rep
79
Posts

Drives: F80 M3
Join Date: Jan 2023
Location: CA

iTrader: (3)

Quote:
Originally Posted by spidy512 View Post
After looking at the rear pic again, I think 5mm would be the safe bet.

Thankfully spacers are not that pricey. I have just about every width as I experimented between the look/fit that I wanted.

I also suggest thinking about a stud conversion while you are getting the spacers. I find having to get new wheel bolts in different lengths is not ideal for a few reasons (especially for wide spacers). Yeah, they are sorta meant for race cars, but I way prefer them and it makes wheel work a breeze. Just my opinion.

looking forward to new pics when you get it settled....

josh
After further thought, I ordered 5mm all around. If that still doesn’t work, I’ll go spacer-less. Will update once they’re on. Thanks again!
Appreciate 1
spidy512502.00
      05-17-2023, 05:50 PM   #8
5thscaleracer
Private First Class
70
Rep
138
Posts

Drives: 2018 M3CS, Merc 2.3-16v
Join Date: May 2019
Location: Pasadena CA

iTrader: (4)

FYI MPS4S run wider than PSS. I am running the same sizes with 12mm spacer all around. Front no rubbing, Rear slight rubbing.

Lowered .5" using MCS 2WNR setup.
Appreciate 0
      05-30-2023, 07:37 PM   #9
arfboy
Private
25
Rep
79
Posts

Drives: F80 M3
Join Date: Jan 2023
Location: CA

iTrader: (3)

Quote:
Originally Posted by spidy512 View Post
After looking at the rear pic again, I think 5mm would be the safe bet.

Thankfully spacers are not that pricey. I have just about every width as I experimented between the look/fit that I wanted.

I also suggest thinking about a stud conversion while you are getting the spacers. I find having to get new wheel bolts in different lengths is not ideal for a few reasons (especially for wide spacers). Yeah, they are sorta meant for race cars, but I way prefer them and it makes wheel work a breeze. Just my opinion.

looking forward to new pics when you get it settled....

josh
Update: 5mm eliminated rubbing on both front and rear! I also ordered a stud conversion kit and Eibach V1 springs - will post further results once those are installed.



Appreciate 0
      05-30-2023, 07:51 PM   #10
NSX2M4
Major
NSX2M4's Avatar
1405
Rep
1,371
Posts

Drives: 2019 M4 ZCP- RIVIAN R1S QUAD
Join Date: Jun 2019
Location: FTL, FL

iTrader: (1)

Get some PPF...
__________________
MGM Ext, SO int, Euro IKON, CS front lip, Carbon 1.5 diffuser, GTS/CS coding, M perf rear spoiler, & everything else STOCK.
(Previous E39 and NA1 NSX owner) Those were the days!
Appreciate 0
      05-30-2023, 10:17 PM   #11
spidy512
Captain
United_States
502
Rep
696
Posts

Drives: 2015 f80 M3
Join Date: Oct 2016
Location: East Bay Area, CA

iTrader: (0)

Garage List
2015 BMW M3  [0.00]
Quote:
Originally Posted by arfboy View Post
Update: 5mm eliminated rubbing on both front and rear! I also ordered a stud conversion kit and Eibach V1 springs - will post further results once those are installed.
Stoked!

Looks great....

josh
Appreciate 0
      05-31-2023, 05:16 PM   #12
E30_Bastard
Enlisted Member
United_States
16
Rep
42
Posts

Drives: 1988 E30 325iS, 2015 F80 M3
Join Date: Jul 2022
Location: San Jose, CA

iTrader: (0)

Has a 70s camaro on 275 rear 235 front look lol I'm a fan
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:17 PM.




f80post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST