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 > Track / Autocross / Dragstrip / Driving Techniques
 
European Auto Source
Post Reply
 
Thread Tools Search this Thread
      05-03-2009, 11:28 AM   #1
Roaders
Private
 
Roaders's Avatar
 
Drives: E92 M3 DCT
Join Date: Dec 2008
Location: London, UK

Posts: 86
iTrader: (0)

Wheel Torque settings

Hi

I've got the OEM 19s on my car and will be getting a set of OEM 18s for use as track tyres. I assume that when I swap these over I should use a torque wrench to tighten them up.

Is the correct torque listed anywhere in the manual? I assume it'll be the same for both sets of wheels.

Thanks
__________________
Roaders is offline   United Kingdom
0
Reply With Quote
      05-03-2009, 11:33 AM   #2
lucid
Major General
 
lucid's Avatar
 
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
iTrader: (0)

88 ft lbs
__________________
lucid is offline   United_States
0
Reply With Quote
      05-03-2009, 11:43 AM   #3
1MOREMOD
2014 Track Days - 9|Ridge 1:52:25|Pacific 1:35:72
 
1MOREMOD's Avatar
 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

Posts: 11,886
iTrader: (5)

what he said.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings & bearings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW race|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
1MOREMOD is offline   United_States
0
Reply With Quote
      05-04-2009, 04:07 AM   #4
Roaders
Private
 
Roaders's Avatar
 
Drives: E92 M3 DCT
Join Date: Dec 2008
Location: London, UK

Posts: 86
iTrader: (0)

Thanks guys, is that out of the manual? I couldn't see it.
__________________
Roaders is offline   United Kingdom
0
Reply With Quote
      05-04-2009, 10:02 AM   #5
1MOREMOD
2014 Track Days - 9|Ridge 1:52:25|Pacific 1:35:72
 
1MOREMOD's Avatar
 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

Posts: 11,886
iTrader: (5)

didnt look for it in the manual. this is just what i have been told my numerous people when i asked. Stricly BMW, les schwab, BMW service. its 88.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings & bearings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW race|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
1MOREMOD is offline   United_States
0
Reply With Quote
      05-04-2009, 10:12 AM   #6
gambitx28
shop smart, shop s-mart
 
gambitx28's Avatar
 
Drives: 2008 E90 M3
Join Date: May 2008
Location: Cape Cod, MA

Posts: 80
iTrader: (0)

yeah, 88 is what my old E46 manual recommended, so I too have been using that setting for the E90 M3 as a 'good enough' guess.
__________________
2008 E90 M3 (IB, Premium, Tech, Cold Weather packages, PDC, 6MT, 19")
gambitx28 is offline   United_States
0
Reply With Quote
      05-04-2009, 03:51 PM   #7
lucid
Major General
 
lucid's Avatar
 
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
iTrader: (0)

BMW doesn't want us to touch our cars anymore, so no more torque specs or dip stick for us!
__________________
lucid is offline   United_States
0
Reply With Quote
      05-05-2009, 11:32 AM   #8
tszene
Private First Class
 
Drives: e92 m3
Join Date: Apr 2008
Location: Philadelphia

Posts: 181
iTrader: (0)

Quote:
Originally Posted by lucid View Post
BMW doesn't want us to touch our cars anymore, so no more torque specs or dip stick for us!
tszene is offline   United_States
0
Reply With Quote
      06-01-2009, 01:57 AM   #9
Thinker23
Private First Class
 
Thinker23's Avatar
 
Drives: '09 E92 M3 - AW, 6MT
Join Date: Apr 2009
Location: Bay Area

Posts: 186
iTrader: (1)

130N-m indicated on the wrench that came with the BMW jack set.
130N-m= 95 ft-lb
Thinker23 is offline   United_States
0
Reply With Quote
      06-01-2009, 03:02 AM   #10
bigjae1976
Takes threads off topic...daily
 
bigjae1976's Avatar
 
Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

Posts: 5,313
iTrader: (12)

Garage List
2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
IIRC there was a TSB that changed the wheel torque spec from 88 ft/lb to 92 ft/lb for E46s. I know I changed from using 88 to 92 for a reason.
__________________


Sponsored by Momentum BMW #593...We Bleed BMW BLUE!
bigjae1976 is offline  
0
Reply With Quote
      06-08-2009, 11:15 AM   #11
Roaders
Private
 
Roaders's Avatar
 
Drives: E92 M3 DCT
Join Date: Dec 2008
Location: London, UK

Posts: 86
iTrader: (0)

Thanks for your replies guys.

I just phoned up BMW service and he said that the torque setting is 120 ft lbs for the E92 M3.

Is this different as you guys are talking about E46?
__________________
Roaders is offline   United Kingdom
0
Reply With Quote
      06-08-2009, 11:23 AM   #12
lucid
Major General
 
lucid's Avatar
 
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
iTrader: (0)

Quote:
Originally Posted by Roaders View Post
Thanks for your replies guys.

I just phoned up BMW service and he said that the torque setting is 120 ft lbs for the E92 M3.

Is this different as you guys are talking about E46?
This is good info. Thanks. But it contradicts the info posted above by Thinker23. I wonder if his jack set was M3 specific. I've been going with the E46 spec after asking around BMW CCA folks as I couldn't find any specs in the manual for the E92 M3. I now feel the need to call my service guy since we have too many different numbers floating around. Does anyone have a "published" spec on this?
__________________
lucid is offline   United_States
0
Reply With Quote
      06-08-2009, 12:03 PM   #13
Dascamel
Lieutenant Colonel
 
Dascamel's Avatar
 
Drives: 2008 e92 M3, 2010 e91 328i
Join Date: Jul 2007
Location: Bakersfield, CA

Posts: 1,662
iTrader: (0)

120 seems extremely high? Anyone verify this? 50% increase? I would be shocked if it differs greatly from 88, thats what I had torqued for 3 consecutive track days, none of them budged.
__________________
2008 E92 M3 Jerez Black,DCT,Fox Red ext,Prem,Tech,19", ipod/usb, CF roof and trim
2010 E91 328i Space Gray,Black int, M sport, most options
2007 Montego Blue 335i (retired)

Last edited by Dascamel; 06-08-2009 at 12:52 PM.
Dascamel is offline  
0
Reply With Quote
      06-10-2009, 01:56 AM   #14
Roaders
Private
 
Roaders's Avatar
 
Drives: E92 M3 DCT
Join Date: Dec 2008
Location: London, UK

Posts: 86
iTrader: (0)

I'd rather have it too tight than too loose!
__________________
Roaders is offline   United Kingdom
0
Reply With Quote
      06-10-2009, 03:00 AM   #15
bigjae1976
Takes threads off topic...daily
 
bigjae1976's Avatar
 
Drives: 11 E90 M3 Individual
Join Date: Mar 2006
Location: Milwaukee, WI

Posts: 5,313
iTrader: (12)

Garage List
2004 BMW M3  [4.50]
2011 BMW E90 M3  [5.00]
2013 BMW 328i  [5.00]
Quote:
Originally Posted by bigjae1976 View Post
IIRC there was a TSB that changed the wheel torque spec from 88 ft/lb to 92 ft/lb for E46s. I know I changed from using 88 to 92 for a reason.
Correction, the change was from 74 lb/ft to 88 lb/ft +/- 7 lb/ft.

120lb/ft? That seems pretty high. I guess a tech or service advisor would have the right answer for sure.
__________________


Sponsored by Momentum BMW #593...We Bleed BMW BLUE!
bigjae1976 is offline  
0
Reply With Quote
      06-10-2009, 03:34 AM   #16
Roaders
Private
 
Roaders's Avatar
 
Drives: E92 M3 DCT
Join Date: Dec 2008
Location: London, UK

Posts: 86
iTrader: (0)

Can someone else phone up their service department and ask the same question? If we get the same answer I think we can believe it.

What's the downside for having it too tight? Damaging the wheels?
__________________
Roaders is offline   United Kingdom
0
Reply With Quote
      06-10-2009, 09:15 AM   #17
J08M3
Major General
 
J08M3's Avatar
 
Drives: 2011 M3 COUPE
Join Date: May 2008
Location: NEW YORK

Posts: 6,012
iTrader: (8)

Quote:
Originally Posted by Roaders View Post
What's the downside for having it too tight? Damaging the wheels?
warped rotors I believe??

Got mine at 90 ft. lbs and my wheels haven't fallen off yet think I'll leave it.
__________________
J08M3 is offline   United_States
0
Reply With Quote
      06-10-2009, 09:24 AM   #18
FStop7
I like cars
 
FStop7's Avatar
 
Drives: M6
Join Date: Oct 2008
Location: Newbury Park, CA

Posts: 5,059
iTrader: (3)

120ft-lb? sounds way high. 90ft-lb has been the norm forever.
FStop7 is offline   Vatican City State
0
Reply With Quote
      06-10-2009, 12:36 PM   #19
lucid
Major General
 
lucid's Avatar
 
Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

Posts: 8,034
iTrader: (0)

Quote:
Originally Posted by Roaders View Post
Can someone else phone up their service department and ask the same question? If we get the same answer I think we can believe it.

What's the downside for having it too tight? Damaging the wheels?
You don't want to overtorque it as it might fail. Here is an example of a failed bolt from the Rogue Engineering site:

http://www.rogueengineering.com/Merc...t_Code=WSPACER

They also state that the BMW spec for M12 bolts is 88 ft lbs. I don't have access to my car, so I can't check to see what kind of bolts are on it. Someone should check this, and call their SA. RE says spec is higher for M14 bolts.
__________________
lucid is offline   United_States
0
Reply With Quote
      06-10-2009, 01:20 PM   #20
r53s65e90
8300
 
r53s65e90's Avatar
 
Drives: r53 s65e90
Join Date: Mar 2009
Location: San Jose, CA

Posts: 529
iTrader: (0)

Quote:
Originally Posted by Roaders View Post
Thanks for your replies guys.

I just phoned up BMW service and he said that the torque setting is 120 ft lbs for the E92 M3.

Is this different as you guys are talking about E46?
Weird. 120 lbft is too high IMO. Also 120 nm is 90 lbft which can explain the SA misfire.

Shortly after delivery my lug nuts where <90lbft so no way 120 is the way to go. I keep them at 90 lbft.

I don't trust random SAs but I will ask the good independent shop I use for my track inspections and misc work.
r53s65e90 is offline   United_States
0
Reply With Quote
      06-10-2009, 01:21 PM   #21
Gearhead999s
Major General
 
Gearhead999s's Avatar
 
Drives: E93 335is(wifes)E92 M3
Join Date: Apr 2007
Location: Toronto

Posts: 6,696
iTrader: (0)

Torque wrench thats for girls I prefer this method

Gearhead999s is offline  
0
Reply With Quote
      06-10-2009, 03:21 PM   #22
von_zoom
Captain
 
von_zoom's Avatar
 
Drives: 2010 Z06
Join Date: Apr 2009
Location: North Carolina

Posts: 913
iTrader: (0)

I agree with 120 being too tight. 88 to 90 sounds correct. Mine were in the 90 lbs range on delivery however I have no confirmation this is the correct setting. Over tight can cause failure. I have seen it happen at the track. Lugs will expand as they heat up.
vz
__________________


Previous Track Toy
von_zoom is offline  
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 02:41 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