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 Sun, Sep-07-2014, 01:37:19 PM   #31
CharlaybitM3
I dont like DSC
 
CharlaybitM3's Avatar
 
Join Date: Sep 2012
Age: 33
Posts: 901
In the garage:
Reputation: 0 CharlaybitM3 is on a distinguished road
Location: Centreville

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by Mr. Wolfe View Post
So slight toe in will track better and be more suitable for the highway and toe out will make the car more lively, but more of a handful, correct?

Mr. Wolfe
Correct. Toe out is preferable for the track as it quickens/sharpens turn in to corners. On the road it'll make the car twitchy though. It will also increase your tire wear.
__________________


"Not putting miles on your M3 is like not having sex with your girlfriend so she'll be more desirable to her next boyfriend..." -Someone Awesome
Quote:
Originally Posted by TMS951 View Post
I like it on mine, tips didn't line up perfect, but good enough. Its off a newer car that makes more power so I know it makes more power on my car.

You can make a custom flange to connect it to your stock header with JB weld.

Sound is an 8/10, I was expecting it to sound like a V8 since its a V8 exhaust. It doesn't, anybody know why this is? Does it have to do with how I installed it?
Jump to top CharlaybitM3 is offline   Reply With Quote
Sponsored Links
Register now and remove these ads
Old Sun, Sep-07-2014, 01:43:37 PM   #32
CharlaybitM3
I dont like DSC
 
CharlaybitM3's Avatar
 
Join Date: Sep 2012
Age: 33
Posts: 901
In the garage:
Reputation: 0 CharlaybitM3 is on a distinguished road
Location: Centreville

United States




Default Re: Ultimate Alignment Specs?

I should add that is for front axle. Toe in is preferable for the rear axle in any situation besides drifting
__________________


"Not putting miles on your M3 is like not having sex with your girlfriend so she'll be more desirable to her next boyfriend..." -Someone Awesome
Quote:
Originally Posted by TMS951 View Post
I like it on mine, tips didn't line up perfect, but good enough. Its off a newer car that makes more power so I know it makes more power on my car.

You can make a custom flange to connect it to your stock header with JB weld.

Sound is an 8/10, I was expecting it to sound like a V8 since its a V8 exhaust. It doesn't, anybody know why this is? Does it have to do with how I installed it?
Jump to top CharlaybitM3 is offline   Reply With Quote
Old Sun, Sep-07-2014, 01:58:34 PM   #33
bigjae1976
Registered User
 
Join Date: Nov 2008
Posts: 6,167
In the garage:
Reputation: 0 bigjae1976 is on a distinguished road
Location: Wichita

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by Obioban View Post
Indeed, just mentioned it because the op said he was looking for the ultimate aggressive street alignment.
My reading comprehension temporarily failed me.

But the key for an aggressive street alignment is the toe. I've killed a set of RS3s in about half the time running 1/4" toe out on the front vs 0" toe. I would also say that there is little value in running toe out on the track unless you are running a low speed configuration.

What I used to do with the Vorshlag plates is align the car at my tracks settings (-3.5, 1/8" toe out each side), mark the camber plate and then find out how much camber I would need to get 1/16" toe in on each side. If your shock towers are good to go then, on Vorshlag plates, go from max camber to close to min camber. It was great because I just show up at the track, jack up a corner, loosen 5 nuts, slide the strut inward, and tighen down. Repear on other side. Done.

Vorshlag does make good camber plates (IMO crap everything else) that are apparently designed to do this. Not sure what other brands are doing.
__________________
2013 F30 328i - Melbourne Red
2011 E90 M3 - Monte Carlo Blue
2004 E46 M3 - Imola Red

Last edited by bigjae1976; Sun, Sep-07-2014 at 02:05:17 PM.
Jump to top bigjae1976 is online now   Reply With Quote
Old Sun, Sep-07-2014, 02:00:39 PM   #34
bimmerfan08
Registered User
 
bimmerfan08's Avatar
 
Join Date: Jan 2009
Age: 27
Posts: 6,217
In the garage:
Reputation: 0 bimmerfan08 is on a distinguished road
Location: Charlotte

United States




Default Re: Ultimate Alignment Specs?

I've been told if the car has more negative camber than factory and is to remain street driven but experience some track days and spirited driving, then 0 total toe up front and minimal toe-in in the rear. This will minimize tire wear with increased camber while not making the car too fluttery.
__________________
Quote:
For those apprehensive about DIYing...

"The most difficult part of figuring out a car, the engineering, has been done. Repairs and maintenance are simply taking parts apart and putting them back together again." - bimmerfan08
Jump to top bimmerfan08 is offline   Reply With Quote
Old Sun, Sep-07-2014, 02:02:15 PM   #35
bimmerfan08
Registered User
 
bimmerfan08's Avatar
 
Join Date: Jan 2009
Age: 27
Posts: 6,217
In the garage:
Reputation: 0 bimmerfan08 is on a distinguished road
Location: Charlotte

United States




Default Re: Ultimate Alignment Specs?

And if it helps...my thread about getting 25k+ miles on my PSS tires was with the alignment settings I posted in this thread.
__________________
Quote:
For those apprehensive about DIYing...

"The most difficult part of figuring out a car, the engineering, has been done. Repairs and maintenance are simply taking parts apart and putting them back together again." - bimmerfan08
Jump to top bimmerfan08 is offline   Reply With Quote
Old Sun, Sep-07-2014, 03:00:47 PM   #36
bigjae1976
Registered User
 
Join Date: Nov 2008
Posts: 6,167
In the garage:
Reputation: 0 bigjae1976 is on a distinguished road
Location: Wichita

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by bimmerfan08 View Post
I've been told if the car has more negative camber than factory and is to remain street driven but experience some track days and spirited driving, then 0 total toe up front and minimal toe-in in the rear. This will minimize tire wear with increased camber while not making the car too fluttery.
Spot on. Rear toe should be close to OEM spec.

The reason why you run toe in at the rear is when the rear end squats under acceleration, the rear wheels will toe out. So if you run zero toe in the rear...better keep that DSC on! What you want is to allow the rear wheels to be at most at 0 toe under max rear suspension travel. Luckily BMW figured that out for us assuming we are on the OEM suspension. This will help you straighten the car up if you encounter oversteer.

OT...this is a big reason why the E9X platform is a superior handling car. The E9X toes in at the rear under acceleration which provides stability. The OEM specs about 1/2 the rear toe on the E9X as the E46.
__________________
2013 F30 328i - Melbourne Red
2011 E90 M3 - Monte Carlo Blue
2004 E46 M3 - Imola Red
Jump to top bigjae1976 is online now   Reply With Quote
Old Sun, Sep-07-2014, 03:13:19 PM   #37
EricSMG
40 something
 
Join Date: Nov 2008
Posts: 10,719
Reputation: 0 EricSMG is on a distinguished road
Location: San Diego

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by Mr. Wolfe View Post
So slight toe in will track better and be more suitable for the highway and toe out will make the car more lively, but more of a handful, correct?

Mr. Wolfe
Exactly, although I would replace the word lively with difficult. With zero/out front toe the car will never drive straight and tram line badly over bumps and grooves. There will also be no performance gain although it will feel more responsive just off center.

There seems to be two camps: those that want a stable wheel and those that want to give constant attention to it.
__________________


'04 SG/Black 6MT || '04 JB/IR SMG

Last edited by EricSMG; Sun, Sep-07-2014 at 03:18:40 PM.
Jump to top EricSMG is online now   Reply With Quote
Old Sun, Sep-07-2014, 03:42:46 PM   #38
aspa
Registered User
 
Join Date: Jan 2014
Posts: 266
Reputation: 0 aspa is on a distinguished road

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by EricSMG View Post
Exactly, although I would replace the word lively with difficult. With zero/out front toe the car will never drive straight and tram line badly over bumps and grooves. There will also be no performance gain although it will feel more responsive just off center.
I don't find it difficult at all. But yeah, it's totally a personal taste issue. I also like my food super salty and most people would say "that's inedible it's way too salty". Nope, it's just right!

I have some toe out right now in my "track" alignment so that when I push the strut tops in to reduce camber I wind up with the correct toe in. That is, toe was set at -2.5 camber to be the ideal toe in, and then I pull the struts out to -3.2 for the track and get a slight toe out.

I thought it would suck on the road, but it's totally fine for me. Yes it tramlines and yes you have to be steering constantly. I don't mind that. It's way less than my 911 did (305 tires = terrible tramlining).

For me personally the worse thing is the way a car with toe in doesn't respond to small steering changes on center. It has a small "dead zone" and I just hate the feeling of that. I want immediate response any time I adjust the wheel, even slightly.

Last edited by aspa; Sun, Sep-07-2014 at 04:50:46 PM.
Jump to top aspa is offline   Reply With Quote
Old Sun, Sep-07-2014, 03:44:18 PM   #39
aspa
Registered User
 
Join Date: Jan 2014
Posts: 266
Reputation: 0 aspa is on a distinguished road

United States




Default Re: Ultimate Alignment Specs?

Quote:
Originally Posted by bigjae1976 View Post
OT...this is a big reason why the E9X platform is a superior handling car. The E9X toes in at the rear under acceleration which provides stability. The OEM specs about 1/2 the rear toe on the E9X as the E46.
Interesting!

Part of why the 911 is still so much better than the Cayman is the sophisticated multi-link suspension in the rear end that does roughly the same thing : toe in under compression. (whereas the Cayman has those crap Mac-struts in the rear).
Jump to top aspa is offline   Reply With Quote
Old Sun, Sep-07-2014, 04:41:01 PM   #40
samo6556
Registered User
 
samo6556's Avatar
 
Join Date: Jun 2009
Posts: 861
Reputation: 0 samo6556 is on a distinguished road
Location: Palatine

United States




Default Re: Ultimate Alignment Specs?

-3.2 front camber
-.05 toe front.

-2.1 rear camber
.19 toe rear.
__________________
2003 Jet Black BMW M3.
Motion Control 2-way,4.10,Ground control sways,Flossman gtr hood,Flossman CSL Trunk,V-CSL bumper,Supersprint stepped headers,Supersprit mids,Supersprint race,Dinan throttle bodies, Karbonious CSL intake ,PFC BBK ,Fall Line pulleys,Apex EC-7 ,Recaro Profi Xl, OEM CSL Roof.
Jump to top samo6556 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 05:00:17 PM.


Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2018, 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 Ultimate Alignment Specs? 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)