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
 
BPM Sport
Post Reply
 
Thread Tools Search this Thread
      05-02-2010, 12:34 PM   #1
ChitownM3
Lieutenant
 
Drives: 2001 SS Camaro
Join Date: Jun 2007
Location: Burbs of Chicago

Posts: 489
iTrader: (0)

Can we change trans gearing?

Quick question, is it possible to change the trans gears in this car? The reason I ask, is because I HATE third gear. Our cars get trounced in 3rd gear on the highway every single time. I feel that going to 110mph in 3rd is way too long, and would like a gear that would take the car to a max of 95mph in 3rd. I don't want to change out the rear end because I believe 1st, 2nd and 4th gear are all pefectly geared.
ChitownM3 is offline  
0
Reply With Quote
      05-02-2010, 12:38 PM   #2
elmariachi
Major
 
elmariachi's Avatar
 
Drives: BMW ///M Division
Join Date: Jan 2007
Location: Singapore

Posts: 1,321
iTrader: (1)

Doubt it. Closest I think you can do is to change your final drive.
__________________

2008 E92 ///M3 Alpine White M-DCT| Novillo-Black Interior| Carbon Fibre Roof| Premium Sound System| EDC| 19's Advan RS w/ Michelin PS2 Cups| iPod| GruppeM Air Intake| GruppeM Steel Braided Lines|Ferodo DS2500 Pads| Akrapovic Full Header-Back Titanium Exhaust| 6000K Philips D1S| 3M Tints|
elmariachi is offline  
0
Reply With Quote
      05-02-2010, 12:41 PM   #3
saeedg48
Brigadier General
 
Drives: 12 CLS63 + 14 M6 C
Join Date: Nov 2008
Location: Unknown

Posts: 3,499
iTrader: (1)

seriously a tune would help make 3rd gear more punchy but idk about completely changing redline.
__________________


2008 M3 Sedan + TestPipes + Tune [sold]

2012 CLS63 AMG + P30 Performance Package
2014 M6 Coupe + AMS Downpipes + KW V3
saeedg48 is offline   Iran
0
Reply With Quote
      05-02-2010, 06:34 PM   #4
ChitownM3
Lieutenant
 
Drives: 2001 SS Camaro
Join Date: Jun 2007
Location: Burbs of Chicago

Posts: 489
iTrader: (0)

Quote:
Originally Posted by saeedg48 View Post
seriously a tune would help make 3rd gear more punchy but idk about completely changing redline.
Car has a tune, exhaust, pulley and filter. Doesn't change the fact that 3rd gear is still a dog due to the fact of how long it is.
ChitownM3 is offline  
0
Reply With Quote
      05-02-2010, 07:18 PM   #5
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 ChitownM3 View Post
Car has a tune, exhaust, pulley and filter. Doesn't change the fact that 3rd gear is still a dog due to the fact of how long it is.
change the rear diff gears.... much easier and will probably get you the change you're looking for
__________________
J08M3 is offline   United_States
0
Reply With Quote
      05-02-2010, 08:30 PM   #6
ersin
Brigadier General
 
ersin's Avatar
 
Drives: 08 IB E92 M3
Join Date: Mar 2008
Location: Maryland

Posts: 3,999
iTrader: (1)

Quote:
Originally Posted by J08M3 View Post
change the rear diff gears.... much easier and will probably get you the change you're looking for
+1. I've never heard of anyone changing just one gear ratio, but can't say for sure. I think you'd have to replace the whole transmission.

I don't know of any E9x M3 with a different final ratio other than PencilGeeks. But in other cars it is a difference that you can most assuredly feel. And you benefit in every gear. You may lose a little mpg if you go really radical, but the M3 already sucks in this regard. I think you can keep your BMW trick M3 LSD and just swap the gears. Check with Dinan. And I'd try a 4.10 if I were you.


Cheers.
__________________

I've been assimilated. 6MT/ZPP/18"/PS extended.
ersin 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 06:59 PM.




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