E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Eibach Pro Kit Springs - Front Only?



Reply
 
Thread Tools Search this Thread
      03-04-2017, 12:58 AM   #1
For3
Enlisted Member
United_States
11
Rep
37
Posts

Drives: E92 M Sport 328i 6MT
Join Date: Dec 2016
Location: Dallas

iTrader: (0)

Eibach Pro Kit Springs - Front Only?

Before I get flamed, I have a legitimate question. If the Eibach Pro Kit spring rates are essentially the same as the stock coupe sport spring rates what would be the harm in installing the front springs only.

Is it because the car would have too much rake given that the front would be about 1" lower than normal thus affecting characteristics like dive, etc.

I understand on a basic level wanting to install matched sets of springs that are intended to be paired but would love to learn why or why not this would work. Apologies in advance for the naivety.

FYI, this is for a 2009 E92 328i. The reason I would be interested in a front only install is I feel the rear height is perfect as is and I am concerned about the advertised .8" drop as I have OEM M3 wheels with aggressive offsets and don't want rubbing tires.

Alternatively, if there are any lower spring / coilover solutions with conservative drops that I am unaware of, please advise. I've also considered Supreme Power lowering perches and also going to coilovers and using HR rear height adjusters (springs must be 60mm dia).
Appreciate 0
      03-04-2017, 01:37 PM   #2
rothwem
Captain
United_States
99
Rep
710
Posts

Drives: 2009 E91 328xi 6mt
Join Date: Apr 2009
Location: Raleigh, NC

iTrader: (0)

Garage List
Quote:
Originally Posted by For3 View Post
Before I get flamed, I have a legitimate question. If the Eibach Pro Kit spring rates are essentially the same as the stock coupe sport spring rates what would be the harm in installing the front springs only.

Is it because the car would have too much rake given that the front would be about 1" lower than normal thus affecting characteristics like dive, etc.

I understand on a basic level wanting to install matched sets of springs that are intended to be paired but would love to learn why or why not this would work. Apologies in advance for the naivety.

FYI, this is for a 2009 E92 328i. The reason I would be interested in a front only install is I feel the rear height is perfect as is and I am concerned about the advertised .8" drop as I have OEM M3 wheels with aggressive offsets and don't want rubbing tires.

Alternatively, if there are any lower spring / coilover solutions with conservative drops that I am unaware of, please advise. I've also considered Supreme Power lowering perches and also going to coilovers and using HR rear height adjusters (springs must be 60mm dia).
I'm looking to do the same thing, my issue is that I can't seem to find anywhere that just sells the front springs!

If you find a place that will sell just the fronts, I'm interested.
Appreciate 0
      03-04-2017, 03:13 PM   #3
For3
Enlisted Member
United_States
11
Rep
37
Posts

Drives: E92 M Sport 328i 6MT
Join Date: Dec 2016
Location: Dallas

iTrader: (0)

Quote:
Originally Posted by rothwem View Post
I'm looking to do the same thing, my issue is that I can't seem to find anywhere that just sells the front springs!

If you find a place that will sell just the fronts, I'm interested.
Well I would think you would have to buy the whole set. They aren't much for all 4 if you look around online.
Appreciate 0
      03-04-2017, 04:01 PM   #4
rothwem
Captain
United_States
99
Rep
710
Posts

Drives: 2009 E91 328xi 6mt
Join Date: Apr 2009
Location: Raleigh, NC

iTrader: (0)

Garage List
Quote:
Originally Posted by For3 View Post
Quote:
Originally Posted by rothwem View Post
I'm looking to do the same thing, my issue is that I can't seem to find anywhere that just sells the front springs!

If you find a place that will sell just the fronts, I'm interested.
Well I would think you would have to buy the whole set. They aren't much for all 4 if you look around online.
Yea, the problem is that the pro-kit springs for my car (xDrive wagon) are only sold in Europe, so the set of 4 ends up being ~$300 once shipping is brought into consideration. Fuuck that. For two springs.
Appreciate 0
      03-04-2017, 11:37 PM   #5
bmwsuspensionguru
New Member
3
Rep
17
Posts

Drives: bmw 335i
Join Date: Jan 2017
Location: virginia

iTrader: (0)

Just get the Prokits for the 335i. The front of your car is almost exactly the same weight as a 335i RWD.

Quote:
Originally Posted by rothwem View Post
Yea, the problem is that the pro-kit springs for my car (xDrive wagon) are only sold in Europe, so the set of 4 ends up being ~$300 once shipping is brought into consideration. Fuuck that. For two springs.
Appreciate 0
      03-05-2017, 03:06 AM   #6
JoeyH335i
First Lieutenant
JoeyH335i's Avatar
United_States
38
Rep
389
Posts

Drives: 2009 BMW 335i
Join Date: Apr 2014
Location: Houston, TX

iTrader: (0)

Sub'd

I'd like to hear more on this.

I'm in search of some spring and damper options. I have the M-Tech sport suspension option on my e92. The rears seem to have sagged a bit and have the perfect drop. The rear wheels just sit right at the top of the wheel well arch. The front are way high. I am too looking to do just a front spring swap and New dampers all around.
__________________


I am just here to help!
Appreciate 0
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 -4. The time now is 08:27 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2017, 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