E90Post
 


European Auto Source
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > BMW Performance & ZSP Springs



Reply
 
Thread Tools Search this Thread
      11-08-2008, 02:25 AM   #1
Gesler
Second Lieutenant
 
Gesler's Avatar
 
Drives: 335i e90 6MT
Join Date: Jul 2007
Location: US

Posts: 246
iTrader: (0)

BMW Performance & ZSP Springs

Since it wasn't clear if the performance springs were the black ZSP springs painted yellow or different ones altogether, I tried to compare the two. However, I was unable to be present when the shop changed the springs and could not compare the two side by side. The Performance Springs are definitely shorter, maybe by 0.5 to 1 inch.

As for the ride, I unfortunately had to rent an F-150 while my car was in the truck, and I just could not tell initially if there was a difference when I got the car back. It felt immensely better after driving the F-150 boat and it was difficult to compare with how it was before the suspension change. After 600 miles, I am inclined to agree with Mr.5's review. I think my car is slightly lower but I will try to take representative photos and post them.

So, here are the photos of the springs:
Attached Images
  
__________________
Gesler is offline   United_States
0
Reply With Quote
      11-08-2008, 04:10 AM   #2
Gen_E92
Brigadier General
 
Drives: slow
Join Date: Oct 2006
Location: Vancouver

Posts: 3,386
iTrader: (17)

Garage List
2007 335i  [3.90]
post some before and after pics!
Gen_E92 is offline   Japan
0
Reply With Quote
      11-08-2008, 02:05 PM   #3
Autobot
Colonel
 
Autobot's Avatar
 
Drives: 07 E90 Montego 6MT
Join Date: Feb 2007
Location: Monterey, California

Posts: 2,980
iTrader: (8)

Garage List
06 325i  [0.00]
07 328i  [0.00]
They look good
__________________
MODS: Blacklines|M6 Reps|Rear Fog|Silver CF Int Trim |Silver CF Pedals, Dead Pedal & Brake hande|OEM CF Trunk Spoiler |ACS Roof Spoiler|CF Mirror Covers|CF Door Pillars |8000K D1S| Blue LED Interior Lights|Black Grille| LUX 5.0| ACS front lip| 20% Tint| CF Roundels | LED Turn signals |Deleted Secondary Cats|Eisenmann Race with mid-pipes|BMW Perf SSK| Black roof | SWS 8 & PDX amp|BMW Perf Fr Brakes | Vorsteiner CF Hood
Autobot is offline   United_States
0
Reply With Quote
      11-09-2008, 04:36 AM   #4
Dux
All ducked out
 
Dux's Avatar
 
Drives: E90
Join Date: Jul 2008
Location: Salem, OR

Posts: 49
iTrader: (0)

Please keep us posted with pix. If you can give us numbers on how much it lowered your car on both ends, if any, that would be great too. I'm thinking the performance springs may be shorter b/c it is stiffer.

I have the base suspension springs right now and the E90 Aftermarket Suspension Guide says the ZSP lowers it about .6". If the performance springs does lower it more from the ZSP springs than I can potentially lower my car to about 1" with the performance springs? I asked Jason from Tisher but he was unable to give me with a definitive answer.
Dux is offline   United_States
0
Reply With Quote
      11-09-2008, 04:26 PM   #5
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: 335 E90 ZSP+
Join Date: Jun 2005
Location: MO

Posts: 9,444
iTrader: (0)

Excellent. They clearly are not identical. Remind us what the cost of the performance springs is. Did you install the performance dampers at the same time?

I wish we could get lightweight titanium springs.
__________________
My not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829
Quaife, BMW Perf & M3 suspension, V5, M-sport, ...
Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
stressdoc is offline   Dominica
0
Reply With Quote
      11-09-2008, 06:44 PM   #6
Mr. 5
Modder Raider
 
Mr. 5's Avatar
 
Drives: M3
Join Date: Apr 2007
Location: Surf City, HB

Posts: 8,618
iTrader: (31)

Garage List
2007 e90 335i  [4.00]
Wow man!
What a difference.
What I'd like to know is if the spring rates are the same.
__________________
e36 M3 Coupe, e36 325i Sedan
e90 335i--SOLD

Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
Mr. 5 is offline   Scotland
0
Reply With Quote
      11-09-2008, 07:27 PM   #7
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: 335 E90 ZSP+
Join Date: Jun 2005
Location: MO

Posts: 9,444
iTrader: (0)

Are these the performance springs for the 135?
If they are for the 335, where did you order them from?
__________________
My not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829
Quaife, BMW Perf & M3 suspension, V5, M-sport, ...
Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
stressdoc is offline   Dominica
0
Reply With Quote
      11-09-2008, 07:32 PM   #8
Dux
All ducked out
 
Dux's Avatar
 
Drives: E90
Join Date: Jul 2008
Location: Salem, OR

Posts: 49
iTrader: (0)

Quote:
Originally Posted by stressdoc View Post
Excellent. They clearly are not identical. Remind us what the cost of the performance springs is. Did you install the performance dampers at the same time?

I wish we could get lightweight titanium springs.

Jason from Tischer quoted me this price:

Front 31336788891 $85.56 each

Rear 33536788900 $85.56 each
Dux is offline   United_States
0
Reply With Quote
      11-10-2008, 12:45 AM   #9
Gesler
Second Lieutenant
 
Gesler's Avatar
 
Drives: 335i e90 6MT
Join Date: Jul 2007
Location: US

Posts: 246
iTrader: (0)

I got them from Tischer. the springs were ~$85 each. but BMW of gwinnet in Atlanta have a better price (for the suspension kit also).

I had the suspension kit, which includes the dampers, and the springs installed. The car does look slightly lowered but I cannot quantify by how much. I was very short of time with my schedule and was unable to take good 'standardized' before and after pictures. I am trying to get photos that can be compared with older photos of the car, and will post them here. As for the spring rates, I have no clue. The guy who did the installation thought these were stiffer, if that means anything useful.

Edit: before (black window trim) and after (chrome trim) pictures. these were taken at different locations at slightly different angles, and i am not sure if i see any difference in height at all.
Attached Images
  
__________________

Last edited by Gesler; 11-11-2008 at 11:42 PM. Reason: added photos
Gesler is offline   United_States
0
Reply With Quote
      11-11-2008, 11:39 PM   #10
Gesler
Second Lieutenant
 
Gesler's Avatar
 
Drives: 335i e90 6MT
Join Date: Jul 2007
Location: US

Posts: 246
iTrader: (0)

btw, after the installation, after about 400 miles i got a warning light to have the brakes checked. the SA initially thought it was because of worn brake pads, but it turned out to be damaged break sensors. I had to pay ~$90 because i couldn't provide the receipt for the initial installation (done at a different place). It wasn't covered by the maintenance warranty as I couldn't prove the installation was done at a BMW dealership. anyway, anyone else have problems with brake sensors after changing the shocks/springs? my car didn't develop this issue till ~400 miles after the suspension work.
__________________
Gesler is offline   United_States
0
Reply With Quote
      11-12-2008, 08:03 PM   #11
ni8shadow
First Lieutenant
 
ni8shadow's Avatar
 
Drives: e90 328i 6MT
Join Date: Sep 2008
Location: Canyon Country

Posts: 361
iTrader: (2)

did u hear a squeeling sound when you are braking around 20-10 mph? I am getting that here and there. No lights for me yet...knock on wood.
ni8shadow is offline   United_States
0
Reply With Quote
      11-12-2008, 08:54 PM   #12
bavarian19
General
 
bavarian19's Avatar
 
Drives: Car
Join Date: Mar 2005
Location: VA

Posts: 18,805
iTrader: (23)

How long have those springs been on for? I wonder if they are going to settle.


I wonder if BMW allows you to just purchase the springs without voiding the other suspension components when it comes to the warranty.
bavarian19 is offline   United_States
0
Reply With Quote
      11-12-2008, 09:19 PM   #13
Gesler
Second Lieutenant
 
Gesler's Avatar
 
Drives: 335i e90 6MT
Join Date: Jul 2007
Location: US

Posts: 246
iTrader: (0)

I do hear the squeaking/whistling noise occasionally from 0-20mph but it is not new. in any case, the break pads were not worn. I don't know if there is any fix for the squeaking noise but it doesn't seem to cause any damage, so I am okay with it. I don't want to go to a dealership unless I absolutely have to.

Quote:
Originally Posted by ni8shadow View Post
did u hear a squeeling sound when you are braking around 20-10 mph? I am getting that here and there. No lights for me yet...knock on wood.

The springs have been on for 600 miles now. I purchased the BMW Performance suspension and springs, so there shouldn't be any issues with warranty. My SA's concern was with warranty for the installation labor. I did not have the receipt from a BMW dealership to prove that the installation labor can be covered under the warranty.

Quote:
Originally Posted by bavarian19 View Post
How long have those springs been on for? I wonder if they are going to settle.

I wonder if BMW allows you to just purchase the springs without voiding the other suspension components when it comes to the warranty.
__________________
Gesler is offline   United_States
0
Reply With Quote
      11-24-2008, 10:55 PM   #14
Jeller
Lieutenant
 
Drives: 2007 335i E90 ZSP
Join Date: Oct 2008
Location: Buffalo NY

Posts: 497
iTrader: (5)

Send a message via AIM to Jeller
Any more info to share? have the springs settled in at all? What are your thoughts on the suspension, now that you have been driving on it for a while?

Thanks

Jeller
Jeller is offline   United_States
0
Reply With Quote
      11-25-2008, 04:15 PM   #15
Mr. 5
Modder Raider
 
Mr. 5's Avatar
 
Drives: M3
Join Date: Apr 2007
Location: Surf City, HB

Posts: 8,618
iTrader: (31)

Garage List
2007 e90 335i  [4.00]
Quote:
Originally Posted by Gesler View Post
btw, after the installation, after about 400 miles i got a warning light to have the brakes checked. the SA initially thought it was because of worn brake pads, but it turned out to be damaged break sensors. I had to pay ~$90 because i couldn't provide the receipt for the initial installation (done at a different place). It wasn't covered by the maintenance warranty as I couldn't prove the installation was done at a BMW dealership. anyway, anyone else have problems with brake sensors after changing the shocks/springs? my car didn't develop this issue till ~400 miles after the suspension work.
I didn't have any problems but that's because i took the proper steps.
I did had to take off the bracket that held the sensors.
The sensors and the headlight leveling system for the Xenons are all connected to the suspension components.
__________________
e36 M3 Coupe, e36 325i Sedan
e90 335i--SOLD

Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
Mr. 5 is offline   Scotland
0
Reply With Quote
      11-25-2008, 08:26 PM   #16
Gesler
Second Lieutenant
 
Gesler's Avatar
 
Drives: 335i e90 6MT
Join Date: Jul 2007
Location: US

Posts: 246
iTrader: (0)

the car is running without any problems now. It is about 1500miles out from the suspension change. It is 'stiffer'; the jolts on the road are more profoundly felt. at the same time, it does handle corners much better. The car stays distinctly more level and stable during turns. I wasn't sure initially, but the car is certainly lower too.

I haven't driven a car that has a stiffer suspension so far and so my experience is limited. but if you don't mind the ride quality on bad roads, this is a very worthwhile upgrade. I would recommend it as you can still keep your warranty intact.
__________________
Gesler is offline   United_States
0
Reply With Quote
      11-25-2008, 08:50 PM   #17
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: 335 E90 ZSP+
Join Date: Jun 2005
Location: MO

Posts: 9,444
iTrader: (0)

Cool. $86 x 4 = $344
+ $560 for Perf dampers
- whatever you can get for ZSP
+ labor
= $ 1k
+ M3 suspension bits (front tension rods, wishbones, & rear subframe bushings)
+ 14mm Msport rear sway
= $ 2k
+ more labor
= $2.5k total
I wish we could get this in a ZHP package!
__________________
My not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829
Quaife, BMW Perf & M3 suspension, V5, M-sport, ...
Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
stressdoc is offline   Dominica
0
Reply With Quote
      11-26-2008, 01:36 AM   #18
skibbs
First Lieutenant
 
Drives: BMW
Join Date: Oct 2008
Location: Gotham City

Posts: 340
iTrader: (2)

Garage List
2007 E92 335i  [0.00]
Are these performance springs compatible with the E92 335i?
skibbs is offline  
0
Reply With Quote
      11-26-2008, 07:40 AM   #19
LaYzEe
Major
 
LaYzEe's Avatar
 
Drives: AW E92 335i
Join Date: Sep 2007
Location: Bay Area, Ca

Posts: 1,041
iTrader: (4)

Quote:
Originally Posted by skibbs View Post
Are these performance springs compatible with the E92 335i?
+1
__________________
LaYzEe is offline  
0
Reply With Quote
      11-26-2008, 10:33 PM   #20
Fraggy
Brigadier General
 
Fraggy's Avatar
 
Drives: 2007 e90
Join Date: Jun 2005
Location: San Diego

Posts: 3,289
iTrader: (11)

I just ordered the kit with springs I will hopefully have it by the end of next week. I can't do a height comparison as my car is already lowered.
__________________
Step--Premium--Sport--Nav--20% Tint--Blacklines--18" Beyern Mesh--Michelin Super Sports--Bastuck Exhaust--M3 Steering Wheel--BMW Performance Springs--Koni--M3 Front/Rear Sways--
Fraggy is offline   United_States
0
Reply With Quote
      11-27-2008, 12:22 AM   #21
stressdoc
Moderator
 
stressdoc's Avatar
 
Drives: 335 E90 ZSP+
Join Date: Jun 2005
Location: MO

Posts: 9,444
iTrader: (0)

Quote:
Originally Posted by Fraggy View Post
I just ordered the kit with springs I will hopefully have it by the end of next week. I can't do a height comparison as my car is already lowered.
Wow Fraggy, why the switch from PSS9s?
__________________
My not-so-recent ED: http://www.e90post.com/forums/showthread.php?t=31829
Quaife, BMW Perf & M3 suspension, V5, M-sport, ...
Please join BMWCCA http://bmwcca.org/index.php?pageid=c...&ref_by=300279
stressdoc is offline   Dominica
0
Reply With Quote
      11-27-2008, 11:13 AM   #22
Fraggy
Brigadier General
 
Fraggy's Avatar
 
Drives: 2007 e90
Join Date: Jun 2005
Location: San Diego

Posts: 3,289
iTrader: (11)

Cause I cant adjust them, or at least dont feel like I have them adjusted ideally. Sometimes I think the sides are different, or the front/rear isnt set up right. At least with BMW, I know that its just how BMW thinks is ideal.
__________________
Step--Premium--Sport--Nav--20% Tint--Blacklines--18" Beyern Mesh--Michelin Super Sports--Bastuck Exhaust--M3 Steering Wheel--BMW Performance Springs--Koni--M3 Front/Rear Sways--
Fraggy is offline   United_States
0
Reply With Quote
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 04:12 AM.




e90post
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