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 > General E46 Forum

General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

Reply
 
Thread Tools Search this Thread Rating: Thread Rating: 2 votes, 3.00 average. Display Modes
Old 03-15-2013, 04:46 PM   #81
Alex323Ci
Registered User
 
Join Date: Jan 2005
Location: Huntington Beach -Surf City USA
Posts: 16,784
My Ride: M3 & 323Ci (sold)
M3 thrust plate

Quote:
Originally Posted by Grande D View Post
Is the M3 plate made out of steel?
no it is made of 3mm thick aluminum. it's benefits were the weight and the new mounting points on the contol arm bushings to tie them together. the NACA air intake that direct cool air to the transmission is another benefit.

the way this mounts which is integrated to the control arm bushings, and being aluminum, makes me wonder if it's really a good idea to switch over? without those mounting points it's likely to be less firm in it's overall design than the standard steel non-M plate.
__________________
OE CSL WHEELS - OE CSL BRAKES - OE AUTOFOLD MIRRORS - CSL TRUNK - CSL DIFFUSER - AA SPORT TUNE - AA PULLEYS - BILSTEIN PSS9s - AS 40% SSK
CF CSL RACE LIP - NAVI - BMW PERF CF STRUT BAR - BMW GROUP N MNTS - GRUPPE M CF INTAKE - SUPERSPRINT - UUC SS BRKLINES, TRANS MNTS, RTABs - 4.10 M-SPORT DIFF
Alex323Ci is offline   Reply With Quote
Old 03-15-2013, 04:47 PM   #82
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,442
My Ride: M54B30
Quote:
Originally Posted by Alex323Ci View Post
no it is made of 3mm thick aluminum. it's benefits were the weight and the new mounting points on the contol arm bushings to tie them together. the NACA air intake that direct cool air to the transmission is another benefit.

the way this mounts which is integrated to the control arm bushings, and being aluminum, makes me wonder if it's really a good idea to switch over? without those mounting points it's likely to be less firm in it's overall design than the standard steel non-M plate.
SS already confirmed that this plate is used on the Z4M. The Z4M uses ZHP control arms. So it's use in the same manner as we would use on our non-Ms if we swapped. The biggest problem looks to be oil changes.
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS

Last edited by Mango; 03-15-2013 at 04:47 PM.
Mango is offline   Reply With Quote
Old 03-15-2013, 10:46 PM   #83
Grande D
Registered User
 
Join Date: Dec 2006
Location: PA
Posts: 3,309
My Ride: Whiiiite BMW!
The non-M plate on later E46s is aluminum too, I'm 99% sure.
__________________
Quote:
Originally Posted by wasp9166 View Post
here today, gone tomm

i spend it while i can, if i run out i'll swallow all my meds
Grande D is offline   Reply With Quote
Old 03-15-2013, 11:01 PM   #84
TerraPhantm
Registered User
 
Join Date: Feb 2008
Location: Mountain Top
Posts: 5,898
My Ride: 2005 M3 Coupe
Quote:
Originally Posted by Mango View Post
I think you're assuming that every change from the E46 to Z4M has to=improved steering feel. The chassis of the E85 coupe is a hell of a lot more rigid torsionally than the E46 coupe so that right there should increase handling/steering feel alone. The car is also lighter and lower.

Still not convinced that road feel or steering feed back has anything to do with the way the strut attaches. The strut simply rotates on top through a bearing and is the backbone of the mcpherson strut system. If you mean more vibration, then maybe i could understand since there's more of the strut body screwed/attached to the spindle?

Is there any documentation on this from BMW in the way of technical literature or otherwise? Of course I could be wrong, but just not seeing it how the strut attachment at the bottom alone corresponds to steering feel. If we use that logic, then I would think the 1M would have poorer feel than a Z4M or E36 M
More steering feedback at least. I suppose that could be translated as vibrations -- but I kinda like feeling the road through my steering. Also seems like that mounting style may lower Cg

In any case, e36 is less stiff than e46. And I'm not convinced that the E46 M3 coupe is that much less stiff than the Z4MC -- there's a lot more bracing than a non-M, and even the E30 M3 is apparently 22500 NM/ -- e46 should be more. So it's not quite 34,000, but I bet it's still in the mid to upper 20s. I don't believe the numbers floating on the Internet for a second since they've never been published. Only published values are from the e46 convertible, which are higher than the frequently quoted numbers.

And the 1M very well might have poorer steering feel. Most newer BMWs have stiff steering, but it feels incredibly numb to me.

Quote:
Originally Posted by Mango View Post
SS already confirmed that this plate is used on the Z4M. The Z4M uses ZHP control arms. So it's use in the same manner as we would use on our non-Ms if we swapped. The biggest problem looks to be oil changes.
Maybe a small hole could be drilled in the right spot without significantly hindering stiffness?

Last edited by TerraPhantm; 03-15-2013 at 11:06 PM.
TerraPhantm is offline   Reply With Quote
Old 03-16-2013, 05:40 PM   #85
Grande D
Registered User
 
Join Date: Dec 2006
Location: PA
Posts: 3,309
My Ride: Whiiiite BMW!
In the Z4 diagrams on RealOEM, I don't see the same rubber isolation/joints as in the E46s steering setup. If what I found is correct,that would definitely increase steering feel.
__________________
Quote:
Originally Posted by wasp9166 View Post
here today, gone tomm

i spend it while i can, if i run out i'll swallow all my meds
Grande D is offline   Reply With Quote
Old 03-18-2013, 01:54 AM   #86
TerraPhantm
Registered User
 
Join Date: Feb 2008
Location: Mountain Top
Posts: 5,898
My Ride: 2005 M3 Coupe
Quote:
Originally Posted by Grande D View Post
In the Z4 diagrams on RealOEM, I don't see the same rubber isolation/joints as in the E46s steering setup. If what I found is correct,that would definitely increase steering feel.
Hmm you're right -- it uses a double u-joint instead. Wonder if that can be retrofitted
TerraPhantm is offline   Reply With Quote
Old 03-18-2013, 09:46 AM   #87
Mango
Over 15,000 visitors
 
Mango's Avatar
 
Join Date: Mar 2006
Location: Southern California
Posts: 22,442
My Ride: M54B30
Looks like it should. you'd have to take that entire piece out of a non-M and measure it up with the rubber isolated part included vs the z4m part. good find. expensive fine though.. i wonder if you could achieve the same effect as just getting a solid coupling from one of the aftermarket vendors (if they even make one for the e46 which i'm sure they do)
__________________
A lifetime free of problems if you follow my guides
Cooling | Maintenance | Suspension | Vacuum | Supreme Reliability | Details

OVER A MILLION VIEWS

Last edited by Mango; 03-18-2013 at 09:47 AM.
Mango is offline   Reply With Quote
Old 03-18-2013, 01:03 PM   #88
Alex323Ci
Registered User
 
Join Date: Jan 2005
Location: Huntington Beach -Surf City USA
Posts: 16,784
My Ride: M3 & 323Ci (sold)
^ i recall seeing posted both a solid aluminum and a polyurethane version. neither of which i was interested in
Alex323Ci is offline   Reply With Quote
Reply

Tags
control arm bushing, plate, reinforcement, subframe

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 06:58 AM.


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