New 2009 2010 BMW Z4 - ZPOST
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   New 2009 2010 BMW Z4 - ZPOST > BMW Z4 Forum (E89) > 2009-Current Z4 Forum (E89) General Discussion

Post Reply
 
Thread Tools Search this Thread
      04-26-2018, 05:21 PM   #1
KIRK!
Amateur Philosopher
KIRK!'s Avatar
United_States
4
Rep
35
Posts

Drives: 2011 Z4 3.0i, Black
Join Date: Apr 2016
Location: Concord, CA

iTrader: (0)

Eibach Lowering Springs Didn't Lower It

I just got my car back from the shop after having them install Eibach Pro springs purchased from a ZPost member. Eibach says they lower the front 1.2" and the rear .8". I see no difference at all. I almost feel like the car got higher. I have put lower springs on cars in the past and know that they settle in and get a bit lower as they wear, but I have never had lowered springs look as if they had no effect. I forgot to measure distances before, but measuring from wheel well peak to rim top on the computer puts them at exactly the same before and after.

The other hint that nothing changed is that the alignment measurements did not change at all.

Maybe the springs that came off were already aftermarket? Maybe the Eibachs that went on were not really for this car?

I can't imagine that the stock springs were so worn out as to be as low as the Eibachs after only 70k miles.

Thoughts? Thanks!

Before:




Front



After:




Front



The springs that went on:




The springs that came off:



Last edited by KIRK!; 04-26-2018 at 08:14 PM..
Appreciate 0
      04-27-2018, 12:05 AM   #2
e46revspeed
Captain
e46revspeed's Avatar
104
Rep
620
Posts

Drives: F06 & E89
Join Date: Jul 2008
Location: oc

iTrader: (6)

yeah that definitely dont look right. i'm on h&r springs
Attached Images
  
__________________

Squattin on Megan Racing and Vertini Monaco
Appreciate 0
      04-27-2018, 01:24 AM   #3
KIRK!
Amateur Philosopher
KIRK!'s Avatar
United_States
4
Rep
35
Posts

Drives: 2011 Z4 3.0i, Black
Join Date: Apr 2016
Location: Concord, CA

iTrader: (0)

That’s what I was expecting.
Appreciate 0
      04-27-2018, 09:12 PM   #4
fmorelli
Lieutenant
fmorelli's Avatar
United_States
160
Rep
561
Posts

Drives: Atacama Yellow 35i
Join Date: Mar 2016
Location: VA

iTrader: (0)

Ok ... dumb question ... did you look to see if they are actually installed?

Filippo
__________________
2011 35i MT Atacama ... lots of bits. Full Öhlins TTX custom suspension. Build thread.
Build sheet. Currently finishing suspension, fuel, ignition system with Barry Battle @ 3DMMotorsport.
Appreciate 0
      04-28-2018, 12:30 AM   #5
KIRK!
Amateur Philosopher
KIRK!'s Avatar
United_States
4
Rep
35
Posts

Drives: 2011 Z4 3.0i, Black
Join Date: Apr 2016
Location: Concord, CA

iTrader: (0)

Quote:
Originally Posted by fmorelli View Post
Ok ... dumb question ... did you look to see if they are actually installed?

Filippo
Ha ha. Yes. They are friends of mine. Plus I have the springs that were removed.
Appreciate 0
      04-28-2018, 06:41 AM   #6
fmorelli
Lieutenant
fmorelli's Avatar
United_States
160
Rep
561
Posts

Drives: Atacama Yellow 35i
Join Date: Mar 2016
Location: VA

iTrader: (0)

I would suggest calling Eibach USA.

I got this card from someone that did H&R springs. His shop took the measurements so I cannot vouch ... but just "FYI"

https://photos.app.goo.gl/9zwueSyUXpK6XAEs5

Filippo
__________________
2011 35i MT Atacama ... lots of bits. Full Öhlins TTX custom suspension. Build thread.
Build sheet. Currently finishing suspension, fuel, ignition system with Barry Battle @ 3DMMotorsport.
Appreciate 0
      04-29-2018, 01:59 PM   #7
Squddie
Second Lieutenant
Squddie's Avatar
United_States
39
Rep
290
Posts

Drives: E89 Z4
Join Date: Apr 2014
Location: Bahston

iTrader: (0)

What model and options do you have?

According to part browsing sites BMW's original springs are supposedly pretty individually picked per car.

You could also measure how strong the old springs are. Measure how much they compress per kilo when sitting on them or something. The Eilbach should have come with a N/m rating.
Appreciate 0
      04-29-2018, 11:08 PM   #8
KIRK!
Amateur Philosopher
KIRK!'s Avatar
United_States
4
Rep
35
Posts

Drives: 2011 Z4 3.0i, Black
Join Date: Apr 2016
Location: Concord, CA

iTrader: (0)

Quote:
Originally Posted by Squddie View Post
What model and options do you have?

According to part browsing sites BMW's original springs are supposedly pretty individually picked per car.

You could also measure how strong the old springs are. Measure how much they compress per kilo when sitting on them or something. The Eilbach should have come with a N/m rating.
I’m doubtful of that being true because Eibach does tons of research and is probably the most reliable and trusted spring manufacturer. If all springs were that different they would have to require every customer to supply them with spring rate measurements that not one customer would be able to supply, and then specially cater every single spring they sell to every single spring they would be replacing.They would not be able to sell any springs by make and model.

The most likely the springs that the other member sold me were not actually for my car.
Appreciate 0
      04-30-2018, 01:05 PM   #9
tr3flip
Private First Class
tr3flip's Avatar
United_States
67
Rep
102
Posts

Drives: E46 M3 | E91 | Acura TSX
Join Date: Oct 2010
Location: Tustin | Eibach

iTrader: (0)

Quote:
Originally Posted by KIRK! View Post
I’m doubtful of that being true because Eibach does tons of research and is probably the most reliable and trusted spring manufacturer. If all springs were that different they would have to require every customer to supply them with spring rate measurements that not one customer would be able to supply, and then specially cater every single spring they sell to every single spring they would be replacing.They would not be able to sell any springs by make and model.

The most likely the springs that the other member sold me were not actually for my car.
Have you checked the part numbers on the springs to confirm you have the right kit? Eibach makes separate kits for 3.0 and 3.5.

The springs should have these numbers stamped on them.

Front = 11-20-019-01-VA
Rear = 11-20-019-01-HA
Appreciate 0
      04-30-2018, 01:22 PM   #10
KIRK!
Amateur Philosopher
KIRK!'s Avatar
United_States
4
Rep
35
Posts

Drives: 2011 Z4 3.0i, Black
Join Date: Apr 2016
Location: Concord, CA

iTrader: (0)

Quote:
Originally Posted by tr3flip View Post
Have you checked the part numbers on the springs to confirm you have the right kit? Eibach makes separate kits for 3.0 and 3.5.

The springs should have these numbers stamped on them.

Front = 11-20-019-01-VA
Rear = 11-20-019-01-HA
Crap! Numbers are different. Wrong springs for sure. That's money in the toilet.

Last edited by KIRK!; 04-30-2018 at 01:46 PM..
Appreciate 0
      04-30-2018, 03:44 PM   #11
tr3flip
Private First Class
tr3flip's Avatar
United_States
67
Rep
102
Posts

Drives: E46 M3 | E91 | Acura TSX
Join Date: Oct 2010
Location: Tustin | Eibach

iTrader: (0)

Quote:
Originally Posted by KIRK! View Post
Crap! Numbers are different. Wrong springs for sure. That's money in the toilet.
Damn, that's a bummer!
Appreciate 0
      05-13-2018, 08:49 PM   #12
bsinsan
New Member
4
Rep
25
Posts

Drives: 2009 Z4 Alpine White
Join Date: Jun 2017
Location: Hong Kong

iTrader: (0)

doesn't look right...so high.
Appreciate 0
      09-10-2018, 10:01 AM   #13
Asbjorn
Captain
Asbjorn's Avatar
China
89
Rep
833
Posts

Drives: Z4 N54 DCT (VTT GC lites)
Join Date: Mar 2012
Location: European in China

iTrader: (0)

Quote:
Originally Posted by KIRK! View Post
Crap! Numbers are different. Wrong springs for sure. That's money in the toilet.
I just installed brand new 23/30i eibach pro springs on my 35i by mistake. Supplier sent the wrong parts. Car is now grounded in more than one way until new springs arrive.

Cheers!

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



All times are GMT -5. The time now is 10:58 AM.




zpost
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
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