BMW M3 Forum
BMW M3 Forum BMW M3 Gallery BMW M3 Reviews BMW M3 Social Groups BMW M3 Chat M3Forum Sponsors >>
Loading


Mobile M3forum
Go Back   BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X) > BMW M3 Discussions > E46 M3 (2001-2006)
Tire Rack Buy Winter Tires Now!
Not a member? Register Now!
Register Gallery All Albums Garage Search Today's Posts Mark Forums Read Calendar FAQ

E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


Reply
 
Thread Tools Display Modes
Old Sat, Aug-12-2017, 08:19:29 PM   #1
schoonerm3
Registered User
 
Join Date: Nov 2011
Posts: 385
Reputation: 0 schoonerm3 is on a distinguished road

Ireland




Default Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

My friend mentioned this to me a few days ago. And now I am wondering if I have sped up the way the car records the mileage?

Can it be recalibrated?
Jump to top schoonerm3 is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Sat, Aug-12-2017, 09:30:43 PM   #2
terraphantm
Moderator
 
Join Date: Dec 2010
Posts: 10,824
In the garage:
Reputation: 11 terraphantm is on a distinguished road
Location: Philadelphia

United States




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

No impact. The speedometer and odometer uses the ABS sensors (on the wheel hubs) to measure speed/distance.
__________________
Jump to top terraphantm is offline   Reply With Quote
Old Sat, Aug-12-2017, 10:56:47 PM   #3
Slowmobile
Na Na Na Na Na Na Na Na
 
Join Date: Apr 2015
Posts: 423
In the garage:
Reputation: 0 Slowmobile is on a distinguished road
Location: Los Angeles

United States




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

now if you went up in wheel size... then that's another story I would assume
__________________
Legen... Wait For It... ///M
Jump to top Slowmobile is offline   Reply With Quote
Old Sat, Aug-12-2017, 11:06:14 PM   #4
johnewhite
USMC-Vet ProCivEng
 
johnewhite's Avatar
 
Join Date: Sep 2005
Posts: 844
Reputation: 0 johnewhite will become famous soon enough
Location: Aptos CA

United States




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

Speed is a direct function of the diameter of the tires.
Jump to top johnewhite is online now   Reply With Quote
Old Sat, Aug-12-2017, 11:54:47 PM   #5
ThunderMoose
Registered User
 
Join Date: Dec 2011
Posts: 2,172
In the garage:
Reputation: 0 ThunderMoose is on a distinguished road
Location: League City

United States




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

I am pretty sure speed is measured by a pitot tube hidden in the front bumper.


Sent from my iPhone using Tapatalk
__________________


#67 2017 NASA TX TT3 Champion

FLMS Half Cage, RaceTech 4009HR drivers seat, Schroth 6-Pt Harness, E.S.S. Fire System, AIM SOLO DL with ECU Harness, SmartyCam, Angle Aluminum with VAC dead pedal, Sparco Steering Wheel on MOMO hub, MCS Suspension, Hyperco 800F 900R springs, Hotchkis Front and Rear Sway bars, Vorshlag Camber Plates, Turner ARCA, AJ Hartman Front Splitter, BW V2 Wing, BW CF Rear Diffuser, APEX ARC-8 wheels, Brembo BBK Front, Carbon Fiber Roof, CF Headlight Blanks, Door Windows and Cards Delete, TMS rear and front subframe reinforcement, Zionsville Competition Cooler, BW Oil Cooler, Oil Diverter Valve, Motorsports Thermostat, Evolve CF Intake, Epic Stepped Headers, Turner Pulleys, BW 3.5" Race Exhaust, EPIC Alpha N Tune, Beisan Oil Disk and Vanos Seals, ZF 5MT, CAE Ultra Shifter

My track journal: http://www.m3forum.net/m3forum/showthread.php?t=509148
Jump to top ThunderMoose is offline   Reply With Quote
Old Sun, Aug-13-2017, 12:11:57 AM   #6
johnewhite
USMC-Vet ProCivEng
 
johnewhite's Avatar
 
Join Date: Sep 2005
Posts: 844
Reputation: 0 johnewhite will become famous soon enough
Location: Aptos CA

United States




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

You mean like the FM3?
Jump to top johnewhite is online now   Reply With Quote
Old Sun, Aug-13-2017, 03:09:33 PM   #7
schoonerm3
Registered User
 
Join Date: Nov 2011
Posts: 385
Reputation: 0 schoonerm3 is on a distinguished road

Ireland




Default Re: Is my odometer clocking the wrong mileage with a 4.1 ratio diff?

Cool. Thanks fellas. Does that mean if your wheel speed sensors are not working then your not recoding mileage??
Jump to top schoonerm3 is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

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. The time now is 02:28:17 AM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
M3Forum.com and M3forum.net is in no way sponsored, endorsed or affiliated by or with BMW NA / BMW AG or any of it's subsidiaries or vendors.
BMW and M3 (E90 M3 | E92 M3 | E93 M3 | E46 M3 | E36 M3 | E30 M3) are registered trademarks of BMW AG.
M3Forum Terms of Service
Copyright 1999-2017 M3Forum.com
Discussing Is my odometer clocking the wrong mileage with a 4.1 ratio diff? in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)