E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > X-Drive owners...



Reply
 
Thread Tools Search this Thread
      06-09-2009, 10:58 AM   #23
UdubBadger
Banned
 
Drives: '04 330i ZHP
Join Date: Dec 2007
Location: Chicago Burbs

Posts: 24,716
iTrader: (22)

Garage List
2004 BMW 330i ZHP  [4.75]
2011 135i  [3.73]
2008 328xi  [4.38]
245/35/19 front 275/30/19 rears on my xi.

even though xi's are awd they are still RWD biased until they feel slippage (i know this has been said earlier).

xi's still can benefit from staggered wheels but not as much as RWD does.

so just like everyone else has said: 80% aesthetics, 20% functionality.... and nothing looks better than a set of 275's pushed out to the fenders.
UdubBadger is offline   No_Country
0
Reply With Quote
      06-09-2009, 03:59 PM   #24
jgalaxy
Gearing
 
jgalaxy's Avatar
 
Drives: E46 M3
Join Date: Oct 2006
Location: Montreal

Posts: 3,798
iTrader: (3)

There is no advantage of staggered on the E9x other than looks. In fact it just worsens the understeer that car suffers from.

Track fiends would want to run same size tire/rim all around. Helps, but still suffers from understeer.
__________________
"Our enemies are innovative and resourceful, and so are we. They never stop thinking
about new ways to harm our country and our people, and neither do we." - George W

jgalaxy is offline   Canada
0
Reply With Quote
      06-12-2009, 11:29 AM   #25
AWD Addict
Chief Executive
 
AWD Addict's Avatar
 
Drives: 2008 335xi 6spd Coupe
Join Date: Dec 2007
Location: Boston

Posts: 2,483
iTrader: (1)

Garage List
2008 335xi  [0.00]
I'm staggered 265 / 235.

The "why" is simple. More contact patch = more grip. If i could run the 265s on the front, I'd do that too.

As for bragging rights, that doesn't even make sense.

With a little tire pressure management, the xi actually handles nice and neutral. I found it to understeer a bit before I adjusted pressures. Now it's great. On my previous AWD cars, even with tire pressure management, a sway bar was really necessary to get a nice neutral feel. I'm guessing BMWs 50/50 weight distribution has a lot to do with it.

My winter setup, for the record, isn't staggered. I run 225s front and back. Narrower tire in snow = better traction.
AWD Addict is offline  
0
Reply With Quote
      06-12-2009, 12:21 PM   #26
TwnTrboCAT1212
The Moose Whisperer
 
TwnTrboCAT1212's Avatar
 
Drives: '08 E92 GIAC S1 335xi 6-MT
Join Date: Oct 2008
Location: Massachusetts

Posts: 407
iTrader: (2)

Quote:
Originally Posted by AWD Addict View Post

With a little tire pressure management, the xi actually handles nice and neutral.
Hey man what are you running for pressures?...I have yet to find a happy medium between the front and rear's on mine that I'm satisfied with. (I'm running 235 / 275's) What do you recommend I use? Thanks,

~Chris~
TwnTrboCAT1212 is offline   United_States
0
Reply With Quote
      06-17-2009, 03:32 PM   #27
AWD Addict
Chief Executive
 
AWD Addict's Avatar
 
Drives: 2008 335xi 6spd Coupe
Join Date: Dec 2007
Location: Boston

Posts: 2,483
iTrader: (1)

Garage List
2008 335xi  [0.00]
Quote:
Originally Posted by TwnTrboCAT1212 View Post
Hey man what are you running for pressures?...I have yet to find a happy medium between the front and rear's on mine that I'm satisfied with. (I'm running 235 / 275's) What do you recommend I use? Thanks,

~Chris~
Hey,

I'm running 36R and 32F on my summers. With your larger rear contact patch, you may not get as much benefit. What are your current pressures, and what's your analysis on the feel? Lonely exit ramps are usually the best litmus test for me. I can kick the ass out if I try, but for the most part, she'll just lose grip equally. I don't think you can dial in any meaningful oversteer just by manipulating tire pressure. Maybe without a staggered setup...



Of course, YMMV.
AWD Addict is offline  
0
Reply With Quote
      07-03-2009, 11:19 PM   #28
chillychan
Second Lieutenant
 
Drives: 08 e92 335xi
Join Date: Jul 2009
Location: Jersey City

Posts: 240
iTrader: (0)

Quote:
Originally Posted by jgalaxy View Post
There is no advantage of staggered on the E9x other than looks. In fact it just worsens the understeer that car suffers from.

Track fiends would want to run same size tire/rim all around. Helps, but still suffers from understeer.
Apparently DINAN agrees with you.

http://www.dinancars.com/store/produ...cat=321&page=2
chillychan is offline   Philippines
0
Reply With Quote
      07-04-2009, 12:00 AM   #29
Montego eyez
Captain
 
Montego eyez's Avatar
 
Drives: BMW e90 xi
Join Date: Feb 2009
Location: NYC

Posts: 686
iTrader: (2)

yeaaaa, i got 10's in the backk
__________________
Got them 17 year old biches saying
Montego eyez is offline  
0
Reply With Quote
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 07:09 PM.




e90post
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