BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Suspension | Brakes | Chassis
 
GT Haus
Post Reply
 
Thread Tools Search this Thread
      06-06-2012, 08:56 AM   #1
marconi118
Captain
10
Rep
968
Posts

 
Drives: 06/07 e93 335i
Join Date: Nov 2008
Location: europe

iTrader: (0)

Post your springs marking here please

I am trying to understand how different are the springs + shocks of M3 E90 92 93 and 1M

The E92 M3 has generally X1 or X2 springs that are quite low rate.
Recently purchased a full E90 M3 suspension, springs are front Y4 and rear Y1, both have 1mm thicker wire than the E92.

So my first conclusion is that the E90 has firmer springs and firmer dampers than the E92.

Could everyone post here the marking on the spring and type of car (E90 E92 1M EDC non EDC, ZCP, Japan etc...)

This could help me and others understanding....
Appreciate 0
      06-06-2012, 12:22 PM   #2
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

Probably very closely related to what the options on the car were, so you need that info too. On E46's, transmission choice, folding seats, and even which stereo influenced which spring paint marks the cars had.

My 2008 E90 M3 has X1 front springs, I will look at the rears when I get a chance. The only factory options were 19" wheels, cold weather, and premium packages. A car equipped with the sunroof, DCT, and tech package would weigh in excess of 90lbs more than my car, so I think it's safe to assume it would have different spring codes.
__________________
Appreciate 0
      06-06-2012, 02:05 PM   #3
mlhj83
Scythe-Meister
mlhj83's Avatar
United Kingdom
22
Rep
1,035
Posts

 
Drives: '11 E92 M3 DCT ZCP
Join Date: Aug 2011
Location: London

iTrader: (0)

Mine is X7 front, X4 rear.

E92 2011
DCT
ZCP
iDrive, Nav, iPod, Apps
DAB
Electric + heated seats
Electric folding mirrors
Heated washer jets and wing mirrors

No sunroof, no power-shades, no upgraded HiFi, no digital TV Tuner, no comfort access.

Last edited by mlhj83; 06-07-2012 at 06:31 AM.
Appreciate 0
      06-07-2012, 03:04 AM   #4
marconi118
Captain
10
Rep
968
Posts

 
Drives: 06/07 e93 335i
Join Date: Nov 2008
Location: europe

iTrader: (0)

Yes I know that options will influence the weight thus the spring rate.
Normally for one type of car, lets say the E90 + E92 M3 the letter should be the same, but the number changes.

For light (no options) E92 m3 it is front X1 rear X1 or X2
As posted a full option M3 E92 has X4 up to X7

What makes me strange is that the springs I got from ebay from en E90 M3 have the marking Y4 in front and Y2 in rear.
Changing from X to Y letter, the thickness is 1mm extra for the Y !! This makes the springs a lot more stiff, no sense for an E90!?

Maybe the ebay dude has taken the springs from an E93 M3? and don't want to admit it? But the shocks that where bundled with these springs are indeed from E90 M3 (checked on realoem.com)

Any marking for E93 please?
Appreciate 0
      06-07-2012, 06:35 AM   #5
mlhj83
Scythe-Meister
mlhj83's Avatar
United Kingdom
22
Rep
1,035
Posts

 
Drives: '11 E92 M3 DCT ZCP
Join Date: Aug 2011
Location: London

iTrader: (0)

Quote:
Originally Posted by marconi118 View Post
Yes I know that options will influence the weight thus the spring rate.
Normally for one type of car, lets say the E90 + E92 M3 the letter should be the same, but the number changes.

For light (no options) E92 m3 it is front X1 rear X1 or X2
As posted a full option M3 E92 has X4 up to X7

What makes me strange is that the springs I got from ebay from en E90 M3 have the marking Y4 in front and Y2 in rear.
Changing from X to Y letter, the thickness is 1mm extra for the Y !! This makes the springs a lot more stiff, no sense for an E90!?

Maybe the ebay dude has taken the springs from an E93 M3? and don't want to admit it? But the shocks that where bundled with these springs are indeed from E90 M3 (checked on realoem.com)

Any marking for E93 please?
I wouldn't consider mine fully optioned as I haven't got popular options like comfort access and an upgraded HiFi. I also suspect that the higher spring rate markings on my car are also due to the competition package. We'll find out more if people with ZCP and DCT post their spring markings.
Appreciate 0
      06-10-2012, 05:43 AM   #6
marconi118
Captain
10
Rep
968
Posts

 
Drives: 06/07 e93 335i
Join Date: Nov 2008
Location: europe

iTrader: (0)

could someone with E93 and 1M post their spring markings please?
Appreciate 0
      06-10-2012, 05:58 AM   #7
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

My rears are X2's, by the way. So far we have these confirmed, I'll try to update this as more people post.

Confirmed E9x M3 Spring Codes
USA 2008 E90 6-speed, ZPP and ZCW: X1 Front, X2 Rear
UK 2011 E92 ZCP, DCT, nav: X7 Front, X4 Rear
USA 2011 E92 ZCP 6-speed, tech: X3 Front, X5 rear

USA 2011 1-series M Coupe: Y8 Front, Y8 Rear
__________________

Last edited by Richbot; 06-14-2012 at 08:52 AM.
Appreciate 0
      06-11-2012, 08:17 AM   #8
edwinm3
Colonel
edwinm3's Avatar
United_States
38
Rep
2,099
Posts

 
Drives: E92 MELBOURNE RED M3
Join Date: Nov 2011
Location: Doral

iTrader: (10)

08 E90 X5 rears, fronts dont know
__________________
Appreciate 0
      06-11-2012, 08:45 PM   #9
TXmtrhed
First Lieutenant
TXmtrhed's Avatar
3
Rep
327
Posts

 
Drives: VO 1M
Join Date: Aug 2010
Location: Katy, TX

iTrader: (0)

'11 1M
Y8 front & rear
Appreciate 0
      06-12-2012, 02:51 AM   #10
marconi118
Captain
10
Rep
968
Posts

 
Drives: 06/07 e93 335i
Join Date: Nov 2008
Location: europe

iTrader: (0)

Quote:
Originally Posted by TXmtrhed View Post
'11 1M
Y8 front & rear
Y8 is a lot stiffer than the M3!!!

Y4 is 1mm thicker wire than X2

I suppose Y8 would be 1.5mm thicker, this explains why the 1M is stated as more sporty as the M3
Appreciate 0
      06-13-2012, 10:02 AM   #11
Bubbles
Brigadier General
Bubbles's Avatar
Cayman Islands
86
Rep
3,560
Posts

 
Drives: Green Bastard
Join Date: Jun 2007
Location: Bishop Bend

iTrader: (3)

X3 Front
X5 Rear

'11 ZCP
__________________
Appreciate 0
      06-13-2012, 03:32 PM   #12
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

Bubbles: options?
__________________
Appreciate 0
      06-13-2012, 03:35 PM   #13
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

Thicker wire doesnt necessarily mean higher spring rate though it is a good indicator. If the ramp rate is the same yes, if not then need to get them on a spring tester to be sure what the effect is, or at least measure the ramp angle.
__________________
Appreciate 0
      06-13-2012, 08:41 PM   #14
TXmtrhed
First Lieutenant
TXmtrhed's Avatar
3
Rep
327
Posts

 
Drives: VO 1M
Join Date: Aug 2010
Location: Katy, TX

iTrader: (0)

Quote:
Originally Posted by marconi118 View Post
Y8 is a lot stiffer than the M3!!!

Y4 is 1mm thicker wire than X2

I suppose Y8 would be 1.5mm thicker, this explains why the 1M is stated as more sporty as the M3
For what it's worth, I went ahead and measured the diameter of my Y8 springs.

F: 12.6mm
R: 14.35mm
Appreciate 0
      06-13-2012, 08:45 PM   #15
Bubbles
Brigadier General
Bubbles's Avatar
Cayman Islands
86
Rep
3,560
Posts

 
Drives: Green Bastard
Join Date: Jun 2007
Location: Bishop Bend

iTrader: (3)

Quote:
Originally Posted by Richbot View Post
Bubbles: options?
Zcp, tech, 6mt, pretty much loaded and fat .
__________________
Appreciate 0
      06-14-2012, 05:20 AM   #16
marconi118
Captain
10
Rep
968
Posts

 
Drives: 06/07 e93 335i
Join Date: Nov 2008
Location: europe

iTrader: (0)

Quote:
Originally Posted by TXmtrhed View Post
For what it's worth, I went ahead and measured the diameter of my Y8 springs.

F: 12.6mm
R: 14.35mm

Great job man! this is quite important because the pitch and windings number should be the same, so the wire diameter determines the stiffness.

I will come back with my Y4 springs diameter...
Appreciate 0
      08-16-2012, 11:59 AM   #17
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

Bump, who else has spring codes they can share?
__________________
Appreciate 0
      08-17-2012, 02:45 PM   #18
rzm3
Moderator
rzm3's Avatar
224
Rep
4,603
Posts

 
Drives: E92 M3
Join Date: Aug 2007
Location: USA

iTrader: (14)

I have ETK which is BMW's official electronic parts catalog. Springs part numbers are based on the options each car has. I can take a look at how many variations there are when I get a chance.
__________________
E92 M3 DCT - AiM EVO4 Data Logger / AiM SmartyCam HD / KW Competition 2-Way / OMP ARS Racing Seats / Brembo GT 365 / Pagid Yellow RS-29 / Rear Seats Delete
Appreciate 0
      08-20-2012, 01:50 PM   #19
Richbot
Colonel
30
Rep
2,120
Posts

 
Drives: Jerez Black E90
Join Date: Sep 2007
Location: STL

iTrader: (2)

Quote:
Originally Posted by rldzhao View Post
I have ETK which is BMW's official electronic parts catalog. Springs part numbers are based on the options each car has. I can take a look at how many variations there are when I get a chance.
That'd be awesome, it'd be great to have a spring code compendium on the forums, and once we know what kind of spring comes from what we could start getting rate data compiled. It's not that important to know what car with what options I guess, but it'd be cool to have X1 = xxx free length front, xxx lb/in. Those paper tags aren't going to last forever, and right now I'm in the dark about what is even available.

Good for finding cheaters in competition classes that require factory parts too, it's always been a common cheat to grab convertible or loaded-up springs and stick them on a lighter BMW for those kinds of competition classes, and sometimes hard for an unconnected person to know for sure without doing a VIN order
__________________
Appreciate 0
      03-17-2013, 10:35 PM   #20
///m3e90
Enlisted Member
///m3e90's Avatar
0
Rep
43
Posts

 
Drives: E90M3ZCP
Join Date: Mar 2013
Location: SoCal

iTrader: (0)

Bring this thread back to life.

Anyone know the spring markings for an E90 ZCP with 6MT and no sunroof.
Listed are the part numbers. I just need the markings that go with them.

Front: 31332283563
Rear: 33532283569

Last edited by ///m3e90; 03-18-2013 at 10:00 AM. Reason: added more info
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 -5. The time now is 05:14 AM.




m3post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST