BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Track / Autocross / Dragstrip > Max rubber on the M2?

Post Reply
 
Thread Tools Search this Thread
      03-22-2020, 12:41 PM   #177
2020M2Competition
Lieutenant
2020M2Competition's Avatar
429
Rep
433
Posts

Drives: Yes
Join Date: Oct 2016
Location: Florida

iTrader: (1)

Quote:
Originally Posted by F30Estoril335M View Post
I happen to have a set of 4s in 255/40/19 and 275/40/19 that I was going to put on my GSF. However, just picked up a stock 2018 M2 and was wondering about fitment with the 40 side walls. Anyone have experience there?
No personal experience with these sizes, but just looking at the specs I think they are going to be way too large
Appreciate 1
5.M0NSTER3353.50
      03-22-2020, 07:59 PM   #178
rwalker
Major
United_States
330
Rep
1,084
Posts

Drives: the wheels off
Join Date: Nov 2006
Location: San Diego, CA

iTrader: (1)

Quote:
Originally Posted by ZM2 View Post
What camber do you run in the rear? I use -2.1 for the track.
The car has whatever the stock alignment is. Rear grip is excellent to excessive.

Camber would help with tire wear, but I can't bring myself to put camber plates in, so I just drive it as fast as I can stock.
__________________
rwalker@rwalker.com (I really dislike Private Messaging)
Appreciate 0
      03-22-2020, 08:38 PM   #179
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by rwalker View Post
The car has whatever the stock alignment is. Rear grip is excellent to excessive.

Camber would help with tire wear, but I can't bring myself to put camber plates in, so I just drive it as fast as I can stock.
An interesting approach, including your use of 275/40 in the front.

I’d venture to say that if you put plates on and went 275/35 in the front you’d get better wear and the plates would pay for themselves. Not to mention better grip and quicker times.

Your input gives me even more hope that my rear setup will work as stock rear camber is -1.8 deg and -2.1 will give more top tire edge clearance.

BTW, no aftermarket parts are needed to adjust rear camber & toe.

Last edited by ZM2; 03-22-2020 at 08:45 PM..
Appreciate 1
rwalker329.50
      03-22-2020, 08:47 PM   #180
rwalker
Major
United_States
330
Rep
1,084
Posts

Drives: the wheels off
Join Date: Nov 2006
Location: San Diego, CA

iTrader: (1)

Quote:
Originally Posted by ZM2 View Post
An interesting approach, including your use of 275/40 in the front.

I’d venture to say that if you put plates on and went 275/35 in the front you’d get better wear and the plates would pay for themselves.
I'm the guy who tried every camber plate for this platform and decided they're all shit. Until someone comes up with an elastomer-suspended washer design I'm staying away.

Quote:
Originally Posted by ZM2 View Post
Not to mention better grip and quicker times.
I do ok as-is. I actually enjoy seeing what I can get out of the stock setup. I save my "mod bug" for my crapcan racecar.

Quote:
Originally Posted by ZM2 View Post
Your input gives me even more hope that my rear setup will work as stock rear camber is -1.8 deg and -2.1 will give more top tire edge clearance.
Keep us posted.
__________________
rwalker@rwalker.com (I really dislike Private Messaging)
Appreciate 0
      03-22-2020, 08:54 PM   #181
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by rwalker View Post
I'm the guy who tried every camber plate for this platform and decided they're all shit. Until someone comes up with an elastomer-suspended washer design I'm staying away.


I do ok as-is. I actually enjoy seeing what I can get out of the stock setup. I save my "mod bug" for my crapcan racecar.


Keep us posted.
I haven’t had any issues with my Vorshlag’s.

Do you need a camber plate to do anything besides adjust camber?
Appreciate 0
      03-22-2020, 08:55 PM   #182
rwalker
Major
United_States
330
Rep
1,084
Posts

Drives: the wheels off
Join Date: Nov 2006
Location: San Diego, CA

iTrader: (1)

Quote:
Originally Posted by ZM2 View Post
I haven’t had any issues with my Vorshlag’s.

Do you need a camber plate to do anything besides adjust camber?
I need them to be noise-free.
__________________
rwalker@rwalker.com (I really dislike Private Messaging)
Appreciate 0
      03-22-2020, 09:05 PM   #183
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by rwalker View Post
I need them to be noise-free.
Got it.

I only recently picked up a small rattle on my driver’s side over certain bumps after 50 or so track days and 30k miles, but I haven’t investigated enough yet to determine the cause.

Sounds like spring rattle which could be a worn bump stop.
Appreciate 0
      03-22-2020, 09:07 PM   #184
rwalker
Major
United_States
330
Rep
1,084
Posts

Drives: the wheels off
Join Date: Nov 2006
Location: San Diego, CA

iTrader: (1)

Quote:
Originally Posted by ZM2 View Post
Got it.

I only recently picked up a small rattle over certain bumps after 50 or so track days and 30k miles, but I haven’t investigated enough yet to determine the cause.

Sounds like spring rattle which could be a worn bump stop.
In my experience it's always the spherical.

The only plates without the spherical (K-MAC) had other issues (grit in the bearings).
__________________
rwalker@rwalker.com (I really dislike Private Messaging)
Appreciate 1
ZM22785.00
      03-22-2020, 09:15 PM   #185
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by rwalker View Post
In my experience it's always the spherical.

The only plates without the spherical (K-MAC) had other issues (grit in the bearings).
Will give it a look and let you know.
Appreciate 0
      06-14-2020, 09:48 PM   #186
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by rwalker View Post
In my experience it's always the spherical.

The only plates without the spherical (K-MAC) had other issues (grit in the bearings).
Long needed update: Turns out my tie rod was a tiny bit loose and was rattling. Tightened it up and no more sounds.

So, the Vorshlag’s are holding up well after 32k miles and ~50 track days.
Appreciate 0
      06-18-2020, 03:15 PM   #187
RSXDC5
Captain
RSXDC5's Avatar
704
Rep
886
Posts

Drives: M3
Join Date: Sep 2012
Location: Scottsdale, AZ

iTrader: (0)

For what it’s worth, my F80 runs 295/30/19 up front on a 19x10.5 +20 & -3 camber. No rubbing, works great, fits extremely well with the camber
Appreciate 0
      06-18-2020, 03:28 PM   #188
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by RSXDC5 View Post
For what it’s worth, my F80 runs 295/30/19 up front on a 19x10.5 +20 & -3 camber. No rubbing, works great, fits extremely well with the camber
Yeah, that’s not happening on the M2.

My buddy with an M3 runs 295/315/30/18 A052. Ridiculous grip.

Last edited by ZM2; 06-18-2020 at 03:38 PM..
Appreciate 1
CSBM52695.50
      06-22-2020, 12:28 PM   #189
Megator
Captain
Megator's Avatar
518
Rep
744
Posts

Drives: M2 Competition
Join Date: Mar 2019
Location: NL

iTrader: (0)

Quote:
Originally Posted by RSXDC5 View Post
For what it’s worth, my F80 runs 295/30/19 up front on a 19x10.5 +20 & -3 camber. No rubbing, works great, fits extremely well with the camber
Whats the clearance to the coilovers like?
__________________
AX 1.1 --> AX GTI --> NA Roadster 1.8 --> E39 528i --> Xsara VTS --> Volvo 940 LPT --> Focus RS MK3 --> M2C + NA Miata 1.8
Appreciate 0
      06-25-2020, 10:04 AM   #190
SafariEdition
Private
40
Rep
55
Posts

Drives: 2017 BMW M2
Join Date: Oct 2019
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by ZM2 View Post
Yeah, that’s not happening on the M2.

My buddy with an M3 runs 295/315/30/18 A052. Ridiculous grip.
Any particular reason you think that wont work with the M2? I'm planning on running 295/30R18 all around in STU trim for autocross next year. Tyspeed is running the same size all around on their track prepped M2 with something like a +15 offset up front on 10.5" wide wheels.
__________________
2017 M2| I make poor decisions| Devin@tirerack.com ext 4197
Appreciate 0
      06-25-2020, 10:59 AM   #191
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by SafariEdition View Post
Any particular reason you think that wont work with the M2? I'm planning on running 295/30R18 all around in STU trim for autocross next year. Tyspeed is running the same size all around on their track prepped M2 with something like a +15 offset up front on 10.5" wide wheels.
I'll rephrase:

Is it doable? Sure, but you either need to have a prepped race car or be a crazy person.

That setup will only fit up front on a lowered car with some serious fender work, or you likely won't be able to lower it much. And, there's no way it's a true square setup, unless you're going to run a 20-25mm spacer up front.

Plus, if you get it to work it's going to throw all kinds of stuff all over the side of the car b/c the tires stick out so far.

I see the tagline in your signature, so IDK, let us know what you decide to do.

Last edited by ZM2; 06-25-2020 at 11:04 AM..
Appreciate 0
      06-25-2020, 11:07 AM   #192
Kelse92
Major
United_States
1132
Rep
1,366
Posts

Drives: Former e92 M3 Owner
Join Date: Aug 2018
Location: Dallas, TX

iTrader: (0)

Quote:
Originally Posted by SafariEdition View Post
Any particular reason you think that wont work with the M2? I'm planning on running 295/30R18 all around in STU trim for autocross next year. Tyspeed is running the same size all around on their track prepped M2 with something like a +15 offset up front on 10.5" wide wheels.
Lol I came to this thread to find info on what fits before going back to our other conversation elsewhere . 295 Yoko is a big tire, I have my doubts on fitting it up front usably on the M2. I guess I need to take a closer look a the Tyspeed car.
__________________

#ladydriven Heavy-spec M3 // KW Clubsports // AA x-pipe // Gintani muffler // Macht-Schnell intake // Gintani tune // OMP Seats // Too Many Apex Wheels // Stoptech ST-60 // Cobalt Friction brake pads
Appreciate 0
      06-25-2020, 11:26 AM   #193
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by Kelse92 View Post
Lol I came to this thread to find info on what fits before going back to our other conversation elsewhere . 295 Yoko is a big tire, I have my doubts on fitting it up front usably on the M2. I guess I need to take a closer look a the Tyspeed car.
Here's the quick summary on where I ended up: https://f87.bimmerpost.com/forums/sh...&postcount=170

I haven't mounted anything on the EC-7R's, yet, so I can't provide additional info for a bit. My focus is track driving on a mod'ed daily driver, vs AutoX or racing (at least with my M2).

Other folks may have some input, as well.
Appreciate 0
      06-25-2020, 11:33 AM   #194
SafariEdition
Private
40
Rep
55
Posts

Drives: 2017 BMW M2
Join Date: Oct 2019
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by ZM2 View Post
I'll rephrase:

Is it doable? Sure, but you either need to have a prepped race car or be a crazy person.

That setup will only fit up front on a lowered car with some serious fender work, or you likely won't be able to lower it much. And, there's no way it's a true square setup, unless you're going to run a 20-25mm spacer up front.

Plus, if you get it to work it's going to throw all kinds of stuff all over the side of the car b/c the tires stick out so far.

I see the tagline in your signature, so IDK, let us know what you decide to do.
Ohhh rest assured...I'll be making terrible decisions again... luckily, I have the resources to help me test things and see just how dumb I am

I agree, I think the overall offset is going to need to be somewhere around +15 to not have contact with the shock. With a fender roll, maybe it'll work? I'm running 275's all around right now without any issues, so another 10mm on each side SHOULD be possible with camber and a fender roll. I'm not too concerned about the getting crap thrown on the side of the car as I'll only be running the 295's for competition use, and will otherwise run the stock sizes for DD use...

Quote:
Originally Posted by Kelse92 View Post
Lol I came to this thread to find info on what fits before going back to our other conversation elsewhere . 295 Yoko is a big tire, I have my doubts on fitting it up front usably on the M2. I guess I need to take a closer look a the Tyspeed car.
: Heres to looking at seeing you in STU next season! Unless you guys are just gonna run the new vette full time?

I think the 295 yok could fit on the front in stock form...just with maybe some rubbing at full lock. I havent tried it because well...I just dont see a reason to run the yok's with how little camber the M2 can get up front in BS set up...yok's arent any faster than the other tires without camber, and they die faster then too...so for now the 275 goodyears are doing just fine
__________________
2017 M2| I make poor decisions| Devin@tirerack.com ext 4197
Appreciate 1
ZM22785.00
      06-25-2020, 11:39 AM   #195
SafariEdition
Private
40
Rep
55
Posts

Drives: 2017 BMW M2
Join Date: Oct 2019
Location: Michigan

iTrader: (0)

Also, heres the link Apex sent me when I asked them about the fitment ideas:

https://www.apexraceparts.com/blog/t...forged-wheels/
__________________
2017 M2| I make poor decisions| Devin@tirerack.com ext 4197
Appreciate 0
      06-25-2020, 11:56 AM   #196
ZM2
Brigadier General
2785
Rep
3,681
Posts

Drives: 2017 LBB M2
Join Date: Mar 2017
Location: Baltimore

iTrader: (1)

Quote:
Originally Posted by SafariEdition View Post
Also, heres the link Apex sent me when I asked them about the fitment ideas:

https://www.apexraceparts.com/blog/t...forged-wheels/
Throw those monsters on, let’s see them!

I ruled out 285/295 square early on bc I’m keeping a suspension setup that works for staggered on the street and track.

And, I wouldn’t fully discount the 295s not throwing rocks and other things on the side of your car whether in AutoX or on track. You’ll def get some dings and whatnot from all that rubber sticking out.

But, I get your motivation. It’s why I started this thread!
Appreciate 0
      06-25-2020, 12:27 PM   #197
SafariEdition
Private
40
Rep
55
Posts

Drives: 2017 BMW M2
Join Date: Oct 2019
Location: Michigan

iTrader: (0)

Quote:
Originally Posted by ZM2 View Post
Throw those monsters on, let’s see them!

I ruled out 285/295 square early on bc I’m keeping a suspension setup that works for staggered on the street and track.

And, I wouldn’t fully discount the 295s not throwing rocks and other things on the side of your car whether in AutoX or on track. You’ll def get some dings and whatnot from all that rubber sticking out.

But, I get your motivation. It’s why I started this thread!
Oh I full expect some stuff to get thrown on the car...but shes not going to be a garage queen anyway. She still has cone scuffs from 2 weeks ago so it is what it is.

At the end of the day....I want to try to find every single advantage I can out of the car, even if its at the sacrifice of something else...because we have a sickness lol

I actually wouldnt mind a staggered set up for track in some cases, but autocross/time trials...I definitely need as much front wheel/tire as I can possibly fit.
__________________
2017 M2| I make poor decisions| Devin@tirerack.com ext 4197
Appreciate 1
ZM22785.00
      06-25-2020, 12:44 PM   #198
Kelse92
Major
United_States
1132
Rep
1,366
Posts

Drives: Former e92 M3 Owner
Join Date: Aug 2018
Location: Dallas, TX

iTrader: (0)

Quote:
Originally Posted by SafariEdition View Post
: Heres to looking at seeing you in STU next season! Unless you guys are just gonna run the new vette full time?

I think the 295 yok could fit on the front in stock form...just with maybe some rubbing at full lock. I havent tried it because well...I just dont see a reason to run the yok's with how little camber the M2 can get up front in BS set up...yok's arent any faster than the other tires without camber, and they die faster then too...so for now the 275 goodyears are doing just fine
Lol hoping to be there next year!
285 Stone's I could easily see fitting square o the M2, just really not sure how to cram the 295 Yoko up front. If it can be done though the car honestly might be too good.

My e92 right now doesn't work right with the current setup still so needs more time/testing to get it right. Maybe I'll run it in STUL or something still this year but Pax is an uphill battle in L3. Plus, it's too under-tired on 265's Yoko's and too costly when they last 43 runs.
So 'Vette right now it is in terms of competitiveness and cost!

If I can put some 295 Yoko's on I'll be a happy camper, the e9x needs it. But with similar tires, lighter weight/size, and more low-end torque though the M2 is easily the better car though in otherwise similar setup.
__________________

#ladydriven Heavy-spec M3 // KW Clubsports // AA x-pipe // Gintani muffler // Macht-Schnell intake // Gintani tune // OMP Seats // Too Many Apex Wheels // Stoptech ST-60 // Cobalt Friction brake pads
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 02:08 PM.




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