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 > E46 BMW > ///M3 Forum

///M3 Forum
The BMW E46 ///M3 is the M version E46 and puts out an amazing 333 HP and 262 lb-ft of torque at stock specs! There are an amazing amount of modifications for both the coupe and convertible models so read up and get started modifying your cars today!

Reply
 
Thread Tools Search this Thread Rate Thread Display Modes
Old 09-19-2013, 01:22 PM   #1
Alotaps
Registered User
 
Join Date: Jul 2013
Location: California
Posts: 6
My Ride: E46 M3
Would I be able to run these tire sizes?

Considering my fronts are in good shape - I'm only buying rears because they're shot, (PSS'S). My tire sizes are stock right now. 225 in the front, 255 in the rear. Would I be okay if I ordered a set of 275's for the rear and keep the 225 in the front, or would that cause issues?

Last edited by Alotaps; 09-19-2013 at 01:24 PM.
Alotaps is offline   Reply With Quote
Ads by Google

Guests, get your FREE E46Fanatics.com membership to remove this ad.
Old 09-19-2013, 03:04 PM   #2
ME46SM
Registered User
 
Join Date: Sep 2012
Location: South FL
Posts: 110
My Ride: '04 E46 M3
I'm running 275 in the rear without any issues and I have a lowered suspension on 19s. 275 should be fine
__________________

Last edited by ME46SM; 09-19-2013 at 03:06 PM.
ME46SM is offline   Reply With Quote
Old 09-19-2013, 03:09 PM   #3
rcsummers
Registered User
 
Join Date: Jan 2009
Location: Suburbia, NJ
Posts: 3,823
My Ride: M3
those are both fine.

but depending on your wheel size, the side wall ration would be different.

for 18's ---> 225/40/18 would be best in front, 275/35or30/18 rears (depending on how meaty of a side wall you want)

for 19's ---> 225/40/19 best in the front, and 275/35/19 rears.
__________________
rcsummers is offline   Reply With Quote
Old 09-19-2013, 03:12 PM   #4
DSilk56
Registered User
 
Join Date: Nov 2010
Location: Miami, Florida
Posts: 810
My Ride: M-3 Convertible
275's at the rear with 225's in front will really make your car understeer. The reason BMW went with the staggered set-up on the M3 was to keep oversteer in check by increasing grip in the rear as contrasted with the front. As it stands with the 255/225 rear/front split, the car is relatively neutral. Increasing the width of the rears by 20 mm will put you in a position where your front will begin to plow before the rear loses grip, just like a FWD set up.
DSilk56 is offline   Reply With Quote
Old 09-19-2013, 09:10 PM   #5
Alotaps
Registered User
 
Join Date: Jul 2013
Location: California
Posts: 6
My Ride: E46 M3
Quote:
Originally Posted by DSilk56 View Post
275's at the rear with 225's in front will really make your car understeer. The reason BMW went with the staggered set-up on the M3 was to keep oversteer in check by increasing grip in the rear as contrasted with the front. As it stands with the 255/225 rear/front split, the car is relatively neutral. Increasing the width of the rears by 20 mm will put you in a position where your front will begin to plow before the rear loses grip, just like a FWD set up.
Quote:
Originally Posted by rcsummers View Post
those are both fine.

but depending on your wheel size, the side wall ration would be different.

for 18's ---> 225/40/18 would be best in front, 275/35or30/18 rears (depending on how meaty of a side wall you want)

for 19's ---> 225/40/19 best in the front, and 275/35/19 rears.
I have OEM 19's. So this wouldn't be a good setup then? I really like the fat tires in the back - would 265/40 be okay for the rear, or should I just stay at 255?
Alotaps is offline   Reply With Quote
Old 09-20-2013, 09:05 AM   #6
DSilk56
Registered User
 
Join Date: Nov 2010
Location: Miami, Florida
Posts: 810
My Ride: M-3 Convertible
You can go to 275 section tires in back (or 265) as long as you increase the width of the front tires to either maintain the designed in differential, or (as many posters like to do) go to a fully square setup. Just remember that a fully square setup will result in oversteer. Also remember that increasing the width of your tires will also increase the rolling circumference of the wheel and tire package, and result in increased speedometer and odometer error. The 35 section width tires that you are proposing actually have a lower sidewall height, and will decrease your wheel/tire diameter by 1.2 centimeters. This isn't much, indeed the decrease in circumference is less than 1%, so this won't be a serious issue.

Last edited by DSilk56; 09-20-2013 at 09:22 AM.
DSilk56 is offline   Reply With Quote
Old 09-20-2013, 12:41 PM   #7
khr0n1x
Registered User
 
Join Date: Dec 2009
Location: Vancouver Canada
Posts: 178
My Ride: 2004 CARBON BLACK M3
Would I be able to run these tire sizes?

I have 235/35 19s in the front and 285/30 19's in the back


Sent from BimmerApp mobile app
__________________
| 2004 E46 M3 Carbon Black | Black Interior |
| OEM Short Shift Kit | Depo LED Turn Signals |
| Angel Eye LED's | CSL M3 Style Carbon Splitters |
| VMR V710 Gunmetal Grey 19" |
| Agency Power V1 Exhaust |

khr0n1x is offline   Reply With Quote
Reply

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 09:34 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
(c) 1999 - 2011 performanceIX Inc - privacy policy - terms of use