E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > Need Help...with wheels.



Reply
 
Thread Tools Search this Thread
      04-20-2009, 07:36 PM   #1
Julyzon
Member
United_States
14
Rep
40
Posts

Drives: 2016 X5 35i Msport
Join Date: Sep 2008
Location: Anchorage, AK

iTrader: (2)

Need Help...with wheels.

Sorry, I have read other post on this but I want to make sure.
Will these wheels be ok, or do I have to get new tires. I have a 2008 335xi with 17's.

19x8.5 front, 19x10 back
245/35/19 front, 275/30/19 rear

Thanks in advance.
Appreciate 0
      04-20-2009, 08:19 PM   #2
DESI4life10
Banned
DESI4life10's Avatar
Canada
201
Rep
3,328
Posts

Drives: Coding: Desi4life10@gmail.com
Join Date: Oct 2008
Location: West of Toronto, Canada

iTrader: (18)

That tire combo is no good.

The difference in the rotating diameter is at 1%. The maximum difference for an Xi vehicle is 1%.

Running right on the high end of the limit is a risk in my opinion.

The best set of wheels are

235/35/19 Front
275/30/19 Rear

The rotating diameter difference with this set is only 0.1% which is pretty much 0% difference. Much safer.
Appreciate 0
      04-20-2009, 08:41 PM   #3
ium3
Lieutenant Colonel
ium3's Avatar
126
Rep
1,819
Posts

Drives: e92 m3
Join Date: Feb 2009
Location: Btown IN/ Indonesia

iTrader: (21)

I am actually running 245/35/19 both front and rear with no problems at all. I din't lower my car though.
Appreciate 0
      04-20-2009, 08:44 PM   #4
DESI4life10
Banned
DESI4life10's Avatar
Canada
201
Rep
3,328
Posts

Drives: Coding: Desi4life10@gmail.com
Join Date: Oct 2008
Location: West of Toronto, Canada

iTrader: (18)

Quote:
Originally Posted by IU328xi View Post
I am actually running 245/35/19 both front and rear with no problems at all. I din't lower my car though.
Yea.. you are driving non-staggered which is fine.

However OP is putting a staggered setup on his car which means having a rotating diameter difference between fronts and rears of no more than 1% (high end) is allowed.
Appreciate 0
      04-21-2009, 09:00 AM   #5
JaysBlueE92
Mr. Monaco
JaysBlueE92's Avatar
United_States
155
Rep
4,197
Posts

Drives: Slow..
Join Date: Sep 2008
Location: New Jersey

iTrader: (9)

Garage List
2007 E92  [5.00]
depending on offset and suspension setup, 275s may rub in the rear. This is the reason many go with 235/35 up front and 265/30 in the rears
__________________
Appreciate 0
      04-23-2009, 05:47 AM   #6
Julyzon
Member
United_States
14
Rep
40
Posts

Drives: 2016 X5 35i Msport
Join Date: Sep 2008
Location: Anchorage, AK

iTrader: (2)

Ok, I am currently using this setup and there is no rub because I am on stock suspension. Im really trying not to buy new tires if not needed. What would be the affects if I continue to use this setup?

Thanks again.
Appreciate 0
      04-23-2009, 12:30 PM   #7
xDrive Mike
Private First Class
xDrive Mike's Avatar
United_States
4
Rep
173
Posts

Drives: 08 E90 M3
Join Date: Nov 2008
Location: Minneapolis

iTrader: (14)

Well with that set up you are at 1.01% differance. since that is right at the maxium limit, you will be putting a little more stress on the transfer case, and might trigger a DSC fault. I would really recommend to get a set of 235/35R19 for the front. Then you will have a .08% difference.
__________________
12 550i xdrive
11 X5d toy hauler
08 E90 M3 - Sold
Appreciate 0
      04-23-2009, 01:58 PM   #8
DESI4life10
Banned
DESI4life10's Avatar
Canada
201
Rep
3,328
Posts

Drives: Coding: Desi4life10@gmail.com
Join Date: Oct 2008
Location: West of Toronto, Canada

iTrader: (18)

You do have an increase risk of blowing the AWD transfer case.
Keeping the difference below 1% is fine by BMW. I guess the margin of error they set was 1%.
Appreciate 0
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 04:20 AM.




e90post
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