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 > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
Steve Thomas BMW
Post Reply
 
Thread Tools Search this Thread
      06-16-2011, 08:20 AM   #1
Len_Beach
Second Lieutenant
 
Drives: E92 M3
Join Date: Jun 2011
Location: UK

Posts: 258
iTrader: (0)

Difference between early and later underdrive pulleys

Hi Guys,
I've been offered an Underdrive pulley but the Guy doesn't know what year of car it came from.
Apparently there was a big change around May/June '08 and it would appear that the pulleys aren't inderchangeable.
My car is a 57 (UK so Sept' '07 to Feb' '08) so should fall sqaurely into the early category.
What physical differences should I be looking for in the early and later pulleys to establish if this will fit?
Thanks.
Ben
Len_Beach is offline  
0
Reply With Quote
      06-16-2011, 08:28 AM   #2
Space Ghost
Captain
 
Space Ghost's Avatar
 
Drives: E92 M3
Join Date: Aug 2008
Location: USA-PA

Posts: 625
iTrader: (5)

I dont know about the pulley itself but, I do know they changed from a single sided belt to a double sided belt. My car is a July 08 build and uses the double sided belt.
Space Ghost is offline   United_States
0
Reply With Quote
      06-16-2011, 08:59 AM   #3
FVM3
Major General
 
FVM3's Avatar
 
Drives: e92 m3, f30 328i
Join Date: Sep 2010
Location: Los Angeles

Posts: 5,710
iTrader: (2)

so when do they start to build double sided belt?
FVM3 is offline  
0
Reply With Quote
      06-16-2011, 11:21 PM   #4
Draff1
Private First Class
 
Draff1's Avatar
 
Drives: 2009 Silverstone M3 Coupe
Join Date: Aug 2009
Location: San Diego, CA

Posts: 195
iTrader: (0)

Go to www.dinan.com and check the two models they offer. Dates and all are listed.
If you have further confusion, call them.
__________________
2009 Silverstone II E92 M3 Coupe - DCT
Dinan Exhaust, RPi scoops, Dinan Tune, Dinan Pulley, BMC filter, LCI Taillights, MS 15mm spacers, Huper Optik tint.
Draff1 is offline   United_States
0
Reply With Quote
      06-17-2011, 12:00 AM   #5
tom @ eas
BimmerPost Supporting Vendor

 
tom @ eas's Avatar
 
Drives: BMW
Join Date: Nov 2005
Location: Anaheim, CA

Posts: 9,941
iTrader: (13)

Garage List
Quote:
Originally Posted by christopherchenm View Post
so when do they start to build double sided belt?
There are 2 different configurations, the change happened on or about 5/08 on the manual transmission and was always present on DCT:

SOP-5/08 6MT - Configuration 1
6/08+ 6MT, including all DCT models - configuration 2

Belt routing:

2008-5/08 6SPD models (non DCT) belt routing


6/08+ and all DCT belt routing


Hope this helps, pulleys provide great (and inexpensive) hp gains.
__________________
Tom G. | european auto source (eas)
email: tom@europeanautosource.com web: www.europeanautosource.com tel 866.669.0705 ca: 714.369.8524 x22

GET DAILY UPDATES ON OUR BLOG FACEBOOK YOUTUBE FLICKR INSTAGRAM
tom @ eas is offline   United_States
0
Reply With Quote
      06-17-2011, 01:41 AM   #6
Len_Beach
Second Lieutenant
 
Drives: E92 M3
Join Date: Jun 2011
Location: UK

Posts: 258
iTrader: (0)

Thanks Tom,
So the crankshaft pulley is unchanged, it's just the belt routing and the use of a different type of belt?
Cheers,
Ben
Len_Beach 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 02:25 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