E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Welcome to the E46Fanatics forums. E46Fanatics is the premiere website for BMW 3 series owners around the world with interactive forums, a geographical enthusiast directory, photo galleries, and technical information for BMW enthusiasts.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   E46Fanatics > Tuning & Tech > Forced Induction Forum

Forced Induction Forum
Discuss supercharging, turbocharging and even nitrous and water injection here.

Thread Tools Search this Thread Rate Thread Display Modes
Prev Previous Post   Next Post Next
Old 11-24-2012, 04:37 AM   #1
Registered User
Join Date: Jul 2011
Location: Germany
Posts: 2,657
My Ride: 330iC
How to upgrade auto tranny?

hello guys,

im curious about all those forced induction guys running auto trannys and sometimes even run shorter diffs.

how to those guys prevent their transmission from going into limp mode at high speeds?

i dynoed my car (2002 330iCA with 3.91 diff) yesterday at 236hp in fourth gear were torque isnt limited and when measured in fifth gear the transmission ecu lowers the power to 204hp.
thats exactly why the car feels awefull in fifth gear at speeds over 200km/h. It accelerates easily to 200km/h in fourth gear just to flatten out at 220 in fifth gear.

is there some tuner able to unlock this limiter? i really want to get rid of it
Attached Thumbnails
Click image for larger version

Name:	gearratio_330_3-91.jpg
Views:	183
Size:	140.2 KB
ID:	479374  

Last edited by daniel_f.; 11-24-2012 at 04:39 AM.
daniel_f. is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

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 On
Censor is ON

All times are GMT -5. The time now is 04:52 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
(c) 1999 - 2016 performanceIX Inc - privacy policy - terms of use