BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Wheels + Tires Sponsored by The Tire Rack
  TireRack

KEEP M3POST ALIVE BY DOING YOUR TIRERACK SHOPPING FROM THIS BANNER LINK!
Post Reply
 
Thread Tools Search this Thread
      02-29-2008, 07:35 AM   #23
rvacha
Captain
 
rvacha's Avatar
 
Drives: '08 E92 M3
Join Date: Mar 2007
Location: Cleveland, OH

Posts: 745
iTrader: (0)

Garage List
2008 E92 M3  [0.00]
Quote:
Originally Posted by GewoW View Post
traction
and understeer.
__________________

'03 X5 4.4i Blue/Tan
'06 E90 330Xi 6MT Sparkling Graphite/Terra
'08 E92 M3 6MT Jerez/Speed Cloth <-- Evil Twin
rvacha is offline   United_States
0
Reply With Quote
      02-29-2008, 09:46 AM   #24
GewoW
#thatsanicemovebro
 
GewoW's Avatar
 
Drives: E92 M3 LSB/Black 6MT
Join Date: Mar 2007
Location: Montreal, Canada

Posts: 3,832
iTrader: (4)

Garage List
2011 BMW M3  [4.67]
Send a message via Skype™ to GewoW
Quote:
Originally Posted by rvacha View Post
and understeer.
with 11'' REAR wheels?
__________________
GewoW is offline   Greece
0
Reply With Quote
      03-01-2008, 06:17 PM   #25
enigma
Captain
 
Drives: E92 M3 and Elise
Join Date: Oct 2006
Location: Land of the Microchip

Posts: 689
iTrader: (0)

Quote:
Originally Posted by GregW / Oregon View Post
I'm guessing 265F & 285R will be easily possible with the right offset wheels. You can even do that on the E46. Some ran 265 x 4 on the E46 to get rid of the inherent understeer. That is not as much of a problem with the E92, so a staggered setup should be fine.
I used to run 285/30-18 on my E46 front and back. Worked great though the front stuck out just a bit.

I would like to run a 9.5" rims for the front of the E92 and go to the same 285/30 setup for autocross use. If anyone finds info about front offsets before I do please post it.

As to the question about 11" rears. Yes it might cause understeer, but the car would still be faster with the extra traction. It would just need a different driving style.
__________________
Manual gearboxes, the rotary dial of cars.
enigma is offline  
0
Reply With Quote
      03-01-2008, 06:33 PM   #26
!Xoible
Banned
 
Drives: ....
Join Date: Nov 2006
Location: .

Posts: 46,037
iTrader: (4)

Garage List
2008 M3  [3.50]
2007 335i  [4.50]
2008 528i  [4.00]
2006 Infiniti - G35 ...  [4.00]
what's the max width i can go with 9.5 in the rear, et25?
can i go more than 275's?
!Xoible is offline   United_States
0
Reply With Quote
      03-01-2008, 06:37 PM   #27
enigma
Captain
 
Drives: E92 M3 and Elise
Join Date: Oct 2006
Location: Land of the Microchip

Posts: 689
iTrader: (0)

Quote:
Originally Posted by mantis View Post
what's the max width i can go with 9.5 in the rear, et25?
can i go more than 275's?
I'll probably run the 285/30-18 for track use. But I don't like that tire for the street as its considerably shorter than stock and makes for a very harsh ride.

Look at tire rack for your tires of choice. Each will be listed with an allowed rim width under the specs tab.
__________________
Manual gearboxes, the rotary dial of cars.
enigma is offline  
0
Reply With Quote
      03-01-2008, 10:45 PM   #28
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
Quote:
Originally Posted by GewoW View Post
with 11'' REAR wheels?
Understeer is caused by too much traction at the rear axle caused by overly wide tires thus the front end is the first to slide. Many E46 owners who track their cars use the same size tire front and back to get a more balance turn with less oversteer. Plus it allows for swapping tires front to back, reducing tire cost for track days. Only on very slow corners at the track does rear traction become a concern due to too narrow rear tires, in my experience.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive

Last edited by skierman64; 03-02-2008 at 01:12 AM.
skierman64 is offline   United_States
0
Reply With Quote
      03-01-2008, 10:52 PM   #29
enigma
Captain
 
Drives: E92 M3 and Elise
Join Date: Oct 2006
Location: Land of the Microchip

Posts: 689
iTrader: (0)

Quote:
Originally Posted by skierman64 View Post
Understeer is caused by too much traction at the rear axle caused by overly wide tires thus the front end is the first to break away. Many E46 owners who track their cars when with the same size tire front and back to get a more balance turn with less oversteer. Plus it allows for swapping tires front to back, reducing tire cost for track days. Only on very slow corners at the track does rear traction become a concern due to too narrow rear tires, in my experience.
While thats true, I suspect most E46 M3 owners that are running 9.5" all around today could be faster with a 9.5" front and 11" rear setup.

A stable car (understeer) is easier to drive at the limit. Also adding grip never slows down the car. All else being equal.
__________________
Manual gearboxes, the rotary dial of cars.
enigma is offline  
0
Reply With Quote
      03-02-2008, 01:18 AM   #30
skierman64
Brigadier General
 
skierman64's Avatar
 
Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

Posts: 3,068
iTrader: (1)

Garage List
1998 M3 Coupe  [0.00]
2008 M3 Coupe  [0.00]
Send a message via Yahoo to skierman64
Quote:
Originally Posted by enigma View Post
While thats true, I suspect most E46 M3 owners that are running 9.5" all around today could be faster with a 9.5" front and 11" rear setup.

A stable car (understeer) is easier to drive at the limit. Also adding grip never slows down the car. All else being equal.
Enigma - I don't know if 9.5/11 combo would be faster or not. I think there's certain advantages to a 9.5/9.5 combo, but I don't know if it would translate to a faster lap time. Perhaps a 9.5/9.5 combo would just be more fun at a driver's school where lap times don't matter because the car would be more balanced. I think we'd have to ask the club racers who have more experiece in experimenting with different wheel and tire combos and then driving them at the limit.
__________________
Get a professional motorsports full featured stopwatch app for your Blackberry here: http://appworld.blackberry.com/webstore/content/19464
Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive
skierman64 is offline   United_States
0
Reply With Quote
      03-02-2008, 01:53 AM   #31
sayemthree
Brigadier General
 
sayemthree's Avatar
 
Drives: bmw
Join Date: Aug 2007
Location: usa

Posts: 4,844
iTrader: (0)

lots of peeps run spacers with no prob.

stock cars with spacers NO WAY. you want bling? skip the DUBS and get 24 inch wheels.
sayemthree is offline  
0
Reply With Quote
      03-05-2008, 10:05 PM   #32
malter2.0
Banned
 
Drives: em-funf
Join Date: Jun 2006
Location: SF Bay Area

Posts: 908
iTrader: (0)

Garage List
I have spacers on my car 12 mm front, for one reason only. Coilover strut housing does not clear stock front wheels regardless of height adjustment.

As long as you use quality spacers (rogue engineering makes good hubcentric) you should have no problems. Over time though, your wheel bearings will probably have somewhat reduced life and different track front to rear will play games if you are trying to dial in oversteer/understeer.

If you have a choice avoid them, but if you must, try to get something less than 10mm preferably.
malter2.0 is offline   United_States
0
Reply With Quote
      03-05-2008, 11:29 PM   #33
GregW / Oregon
Commander-In-Chief
 
Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

Posts: 7,364
iTrader: (1)

Garage List
Quote:
Originally Posted by malter2.0 View Post
I have spacers on my car 12 mm front, for one reason only. Coilover strut housing does not clear stock front wheels regardless of height adjustment.

As long as you use quality spacers (rogue engineering makes good hubcentric) you should have no problems. Over time though, your wheel bearings will probably have somewhat reduced life and different track front to rear will play games if you are trying to dial in oversteer/understeer.

If you have a choice avoid them, but if you must, try to get something less than 10mm preferably.
I agree with that advice. H&R makes good spacer, as well.
__________________

Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350
GregW / Oregon is offline   United_States
0
Reply With Quote
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
Forum Jump


All times are GMT -5. The time now is 04:17 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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