BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Wheels / Tires -- Sponsored by The Tire Rack > Anyone running a 285/30/18 square setup?

Post Reply
 
Thread Tools Search this Thread
      01-21-2020, 05:02 PM   #1
SEAT TIME RULES
Major
SEAT TIME RULES's Avatar
1095
Rep
1,261
Posts

Drives: 20 BMW M2C 17 Mazda MX-5 RF
Join Date: Oct 2006
Location: "Get Busy Living, or Get busy Dying"

iTrader: (0)

Garage List
2020 BMW M2C  [5.00]
Anyone running a 285/30/18 square setup?

Gang, looking to jump on the front Essex BBK, Apex EC-7 18x10's E35 w/285/30/18 BFG R1's.

I've always had a sq track/auto X setup. Lots of positive reasons for it...

With that said, anyone else running 285's square on their M2's?
__________________
2005-2006 BMWCCA Boston Chapter president
2004 Mazda Rev It Up Finalist
2002-Present HPDE Instructor
My 2020M2C Build: https://f87.bimmerpost.com/forums/sh....php?t=1696726
Appreciate 0
      01-21-2020, 05:30 PM   #2
detroitm2
Colonel
detroitm2's Avatar
United_States
2427
Rep
2,526
Posts

Drives: 2018 M2
Join Date: Aug 2018
Location: Michigan

iTrader: (2)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by SEAT TIME RULES View Post
Gang, looking to jump on the front Essex BBK, Apex EC-7 18x10's E35 w/285/30/18 BFG R1's.

I've always had a sq track/auto X setup. Lots of positive reasons for it...

With that said, anyone else running 285's square on their M2's?
You're going to need a lot of camber and some big spacers.

I'm running 265 35 18 with the same wheels. I have 2.4 degrees of camber and 12mm spacers. It barely clears in the front. I am lowered about 0.8"
__________________
2018 M2 - Daily Driver/Track Car
Motorcity BMWCCA Member
Instagram | YouTube
Appreciate 0
      01-21-2020, 06:07 PM   #3
SEAT TIME RULES
Major
SEAT TIME RULES's Avatar
1095
Rep
1,261
Posts

Drives: 20 BMW M2C 17 Mazda MX-5 RF
Join Date: Oct 2006
Location: "Get Busy Living, or Get busy Dying"

iTrader: (0)

Garage List
2020 BMW M2C  [5.00]
Will be running 3.5F / 2.2 R Neg Camber, with spacers where needed.

Its supposed to fit according to Apex...
__________________
2005-2006 BMWCCA Boston Chapter president
2004 Mazda Rev It Up Finalist
2002-Present HPDE Instructor
My 2020M2C Build: https://f87.bimmerpost.com/forums/sh....php?t=1696726
Appreciate 0
      01-21-2020, 06:29 PM   #4
Drop the hammer
First Lieutenant
249
Rep
391
Posts

Drives: '17 F87 M2 AW, Dct
Join Date: Mar 2012
Location: Calgary, AB, Canada

iTrader: (0)

I’m running apex ec7 18x10’s et 35 square with 285/30 re71r’s for autocross. Just needed a 10mm spacer in front and the longer lugs. Stock height, stock Springs’s/shocks, tckline plates camber is -2 with 0 toe. Same settings front and rear. I will try -2.75 this summer on front camber. No rubbing at all and looks perfect. Way better autocross times with this set up versus stock, instant 2-3 seconds faster on a 45 second autocross.
Appreciate 0
      01-21-2020, 07:03 PM   #5
boony1968
Private
boony1968's Avatar
18
Rep
50
Posts

Drives: M2
Join Date: Jan 2019
Location: B'ham AL

iTrader: (1)

That short rear tire would drive me nuts on course.
__________________
'18 M2 - Alpine White - 6M
Appreciate 0
      01-21-2020, 07:57 PM   #6
detroitm2
Colonel
detroitm2's Avatar
United_States
2427
Rep
2,526
Posts

Drives: 2018 M2
Join Date: Aug 2018
Location: Michigan

iTrader: (2)

Garage List
2018 BMW M2  [0.00]
Quote:
Originally Posted by Drop the hammer View Post
I'm running apex ec7 18x10's et 35 square with 285/30 re71r's for autocross. Just needed a 10mm spacer in front and the longer lugs. Stock height, stock Springs's/shocks, tckline plates camber is -2 with 0 toe. Same settings front and rear. I will try -2.75 this summer on front camber. No rubbing at all and looks perfect. Way better autocross times with this set up versus stock, instant 2-3 seconds faster on a 45 second autocross.
Interesting. I tried 10mm spacers with 265 federals and they rubbed on the struts. I was lowered but it shouldn't affect strut to tire spacing.
__________________
2018 M2 - Daily Driver/Track Car
Motorcity BMWCCA Member
Instagram | YouTube
Appreciate 0
      01-21-2020, 11:13 PM   #7
Drop the hammer
First Lieutenant
249
Rep
391
Posts

Drives: '17 F87 M2 AW, Dct
Join Date: Mar 2012
Location: Calgary, AB, Canada

iTrader: (0)

Yes this tire is short. But I’m dct, run most of the courses in 2nd (occasionally can hit limiter) and only on faster courses do I need 3rd for a bit. Broad torque band makes it pretty easy. Manual guys I can see this as more a pain as you would lose time in shifting. I do know one guy running a 295/30 on a 19, he has a manual and stays in 2nd with that tall tire.
Appreciate 0
      01-21-2020, 11:16 PM   #8
Drop the hammer
First Lieutenant
249
Rep
391
Posts

Drives: '17 F87 M2 AW, Dct
Join Date: Mar 2012
Location: Calgary, AB, Canada

iTrader: (0)

i Can nearly get my pinky finger in between tire and strut. But I’m also 30 series tire which is way lower.
Appreciate 0
      01-22-2020, 07:52 AM   #9
Twt
Captain
Twt's Avatar
633
Rep
650
Posts

Drives: 2017 M2
Join Date: Sep 2016
Location: Atlanta

iTrader: (4)

Quote:
Originally Posted by detroitm2 View Post
You're going to need a lot of camber and some big spacers.

I'm running 265 35 18 with the same wheels. I have 2.4 degrees of camber and 12mm spacers. It barely clears in the front. I am lowered about 0.8"
I am similar. I have 2 sets of 18 wheels, Bimmerworld and TR. Lowered on MCS with negative 3.2...I have tried over a dozen different tires, sizes, and spacers. The 265/35/18 set up with 10mm front spacers is the sweet spot. I have run a 275/35/18 up front but it takes a 15 mm and that causes the tire to rub on the outside on track.
Appreciate 0
      01-23-2020, 12:20 PM   #10
SEAT TIME RULES
Major
SEAT TIME RULES's Avatar
1095
Rep
1,261
Posts

Drives: 20 BMW M2C 17 Mazda MX-5 RF
Join Date: Oct 2006
Location: "Get Busy Living, or Get busy Dying"

iTrader: (0)

Garage List
2020 BMW M2C  [5.00]
What rim and offset?
__________________
2005-2006 BMWCCA Boston Chapter president
2004 Mazda Rev It Up Finalist
2002-Present HPDE Instructor
My 2020M2C Build: https://f87.bimmerpost.com/forums/sh....php?t=1696726
Appreciate 0
      01-24-2020, 06:55 AM   #11
Twt
Captain
Twt's Avatar
633
Rep
650
Posts

Drives: 2017 M2
Join Date: Sep 2016
Location: Atlanta

iTrader: (4)

Quote:
Originally Posted by SEAT TIME RULES View Post
What rim and offset?
BimmerWorld TA16 18x9.5" ET35
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 08:34 AM.




m2
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