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
 
OneEighty
Post Reply
 
Thread Tools Search this Thread
      09-22-2008, 09:57 PM   #1
iyzwanzig
Registered
0
Rep
1
Posts

 
Drives: 2008 E92 M3 Alpine White
Join Date: Sep 2008
Location: Los Angeles

iTrader: (0)

Springs and EDC....yet another

I've been looking at various threads regarding both eibach and H&R lowering springs and have come to realize there is no uniform decision as to whether they are "ok" for the car or not. I was wondering however if there is any way to reprogram the EDC system to adjust it in some way for different ride heights and spring rates. Also, going along with the school of thought that the springs will have a negative effect on the dampers, do both the eibach and H&R springs seem to have the same drop or does one ride higher than the other? Thanks in advance for any help you can offer!
Appreciate 0
      09-22-2008, 11:07 PM   #2
GTR-M3
Private First Class
GTR-M3's Avatar
United_States
2
Rep
119
Posts

 
Drives: 2008 Bmw M3 V8 M-DCT
Join Date: Mar 2008
Location: San Francisco, CA

iTrader: (0)

H&R will make the car sit lower than the Eibach. I woldn't go with anything other than H&R's, can't go wrong with them. From experience i dont belive that they have a negative effect on the dampers cause H&R people made them to be compatible with the EDC so i think they took a lot of things into consideration to make sure nothing will happen to the EDC system or the dampers. My bro has H&R's on his M6 with EDC and it's a perfect set up...EDC won't do anything to the springs, it only controls the damping of the shocks this isn't a air suspention system...Go with H&R's money will be well spent...
__________________

***NO GUTS, NO GLORY! ///M3 TUNER***
***PASSION DOES NOT COMPROMISE***
Appreciate 0
      09-23-2008, 01:06 AM   #3
JetBlack5OC
Major
14
Rep
1,132
Posts

 
Drives: E60&E92
Join Date: Jul 2008
Location: west

iTrader: (0)

I have had H&R's a few years back on a 3-series. At times they were a little bouncy. I say go with the Eibach, the drop isn't as low. I have read many good reviews on the M5 boards about the Eibach pro-kits, they ride like stock.
Appreciate 0
      09-23-2008, 11:09 AM   #4
Sedan_Clan
Banned
Brazil
130
Rep
10,918
Posts

 
Drives: '14 335i(prev.IB,AW M3's & X5)
Join Date: Jun 2006
Location: On 2 wheels clipping an apex!

iTrader: (25)

How much are the EDC-compatible Eibachs? Would you happen to know the model #/product code?
Appreciate 0
      09-27-2008, 03:16 AM   #5
longtran
Moderator
longtran's Avatar
443
Rep
16,617
Posts

 
Drives: E90 M3
Join Date: Jul 2005
Location: CA

iTrader: (105)

Garage List
2006 325i  [0.00]
Quote:
Originally Posted by GTR-M3 View Post
H&R will make the car sit lower than the Eibach. I woldn't go with anything other than H&R's, can't go wrong with them. From experience i dont belive that they have a negative effect on the dampers cause H&R people made them to be compatible with the EDC so i think they took a lot of things into consideration to make sure nothing will happen to the EDC system or the dampers. My bro has H&R's on his M6 with EDC and it's a perfect set up...EDC won't do anything to the springs, it only controls the damping of the shocks this isn't a air suspention system...Go with H&R's money will be well spent...



Quote:
Originally Posted by Sedan_Clan View Post
How much are the EDC-compatible Eibachs? Would you happen to know the model #/product code?
its not that it is compatible. eibach tends to be more on the safe side on thier products. for eibach, the front only drops .8 and the rear is .6 which is the same as h&r on the rear. i think both company came to the conclusion that .6 will not do any harm on the edc. i guess they do not agree when making the fronts. h&r is 1.3 on the fronts which is kinda conservative compare to thier race version. i assume h&r feels that 1.3 wont harm the edc function. i agree, the ride feels slightly softer but the edc will still work when you need it.
Appreciate 0
      09-27-2008, 08:35 PM   #6
Kadarin
Ambassador of Crunk
United_States
7
Rep
606
Posts

 
Drives: SG/blk '08 E92 M3
Join Date: Apr 2008
Location: San Jose, CA

iTrader: (0)

Longtran, where are you getting the 1.3 spec on the H&R? The H&R manufacturer site states that it's a 1" drop in the front.
Appreciate 0
      09-28-2008, 12:11 AM   #7
longtran
Moderator
longtran's Avatar
443
Rep
16,617
Posts

 
Drives: E90 M3
Join Date: Jul 2005
Location: CA

iTrader: (105)

Garage List
2006 325i  [0.00]
Quote:
Originally Posted by Kadarin View Post
Longtran, where are you getting the 1.3 spec on the H&R? The H&R manufacturer site states that it's a 1" drop in the front.
you are right. i dont know why i said 1.3. i think i was thinking about h&r sports for e90 335.
Appreciate 0
      09-28-2008, 12:37 AM   #8
Sticky
Banned
United_States
30
Rep
2,244
Posts

 
Drives: E92 Jerez DCT M3
Join Date: Jan 2008
Location: Anaheim Hills / Malibu

iTrader: (0)

So Eibach and H&R only differ as far as the drop in the front? In that case the Eibach might be the better choice as I already scrape a bunch at the stock height.
Appreciate 0
      09-28-2008, 04:57 AM   #9
ArsenalFC
Second Lieutenant
ArsenalFC's Avatar
6
Rep
282
Posts

 
Drives: | DCT | AW | M3 |
Join Date: Sep 2007
Location: | LV | CA |

iTrader: (0)

I went with the RDsport springs, lowers the most out of all the springs and looks fantastic.
__________________
Arsenal F.C. - Gooner 4 Life
Appreciate 0
      09-28-2008, 09:32 PM   #10
tallycoolies
Private First Class
tallycoolies's Avatar
United_States
5
Rep
192
Posts

 
Drives: 08 Interlagos Blue M3
Join Date: Sep 2008
Location: PA

iTrader: (2)

H&R all the way~
__________________

E92 M3 Coupe\Interlagos Blue\6MT\18"\Technology PK\Premium Sound\Moon Roof\H&R Sport Springs\UUC SSK\GP Thunder 8500K H8 & 12000K HID Xenon\MB Grill\VSR Ti Exhaust\AA X-pipe\AA ECU\AA pulley\VSR CF rear diffuser\VSR CF boot lid\Painted Reflector\Gruppe M CAI\VSR Frontlip\Volk TE-37 19'
Appreciate 0
      09-28-2008, 09:54 PM   #11
Sticky
Banned
United_States
30
Rep
2,244
Posts

 
Drives: E92 Jerez DCT M3
Join Date: Jan 2008
Location: Anaheim Hills / Malibu

iTrader: (0)

Quote:
Originally Posted by Arsenal View Post
I went with the RDsport springs, lowers the most out of all the springs and looks fantastic.
Where / How did you get them? What is the drop?
Appreciate 0
      09-29-2008, 11:34 AM   #12
longtran
Moderator
longtran's Avatar
443
Rep
16,617
Posts

 
Drives: E90 M3
Join Date: Jul 2005
Location: CA

iTrader: (105)

Garage List
2006 325i  [0.00]
Quote:
Originally Posted by Sticky View Post
Where / How did you get them? What is the drop?
i think autotalent carries them. they are 2" all around. i wish i can run this, but i know for sure edc will not be functional.
Appreciate 0
      09-29-2008, 03:32 PM   #13
MDCTFTW
Lieutenant Colonel
39
Rep
1,974
Posts

 
Drives: E92 DCT
Join Date: Apr 2008
Location: Norcal

iTrader: (0)

Where is the best place to get H&Rs? How much did you guys get them for?
__________________


MDCT ... so you can drive and eat a hamburger at the same time.
Appreciate 0
      09-29-2008, 05:52 PM   #14
Sticky
Banned
United_States
30
Rep
2,244
Posts

 
Drives: E92 Jerez DCT M3
Join Date: Jan 2008
Location: Anaheim Hills / Malibu

iTrader: (0)

Quote:
Originally Posted by MDCTFTW View Post
Where is the best place to get H&Rs? How much did you guys get them for?
You should pay around 300 bucks for them, turner motorsport and evosport both have them.
Appreciate 0
      09-29-2008, 06:23 PM   #15
MDCTFTW
Lieutenant Colonel
39
Rep
1,974
Posts

 
Drives: E92 DCT
Join Date: Apr 2008
Location: Norcal

iTrader: (0)

Quote:
Originally Posted by Sticky View Post
You should pay around 300 bucks for them, turner motorsport and evosport both have them.
Thanks! I was just wondering what a good ball park figure is.
__________________


MDCT ... so you can drive and eat a hamburger at the same time.
Appreciate 0
      09-29-2008, 07:36 PM   #16
Sticky
Banned
United_States
30
Rep
2,244
Posts

 
Drives: E92 Jerez DCT M3
Join Date: Jan 2008
Location: Anaheim Hills / Malibu

iTrader: (0)

Quote:
Originally Posted by MDCTFTW View Post
Thanks! I was just wondering what a good ball park figure is.
Yep, that is the ballpark figure and don't pay more than 3-4 hours labor for install.
Appreciate 0
      09-30-2008, 03:53 PM   #17
BMW F22
Major General
BMW F22's Avatar
United_States
209
Rep
8,388
Posts

 
Drives: ///M235i
Join Date: Nov 2005
Location: Around the Bay

iTrader: (8)

Quote:
Originally Posted by MDCTFTW View Post
Where is the best place to get H&Rs? How much did you guys get them for?
We can get them for you no problem and we're local as well. Let us know if we can help.
Appreciate 0
      09-30-2008, 05:57 PM   #18
JEllis
Brigadier General
JEllis's Avatar
84
Rep
4,781
Posts

 
Drives: E36 M3, E92 M3
Join Date: Oct 2006
Location: SD CA/Yuma

iTrader: (4)

Quote:
Originally Posted by longtran View Post





its not that it is compatible. eibach tends to be more on the safe side on thier products. for eibach, the front only drops .8 and the rear is .6 which is the same as h&r on the rear. i think both company came to the conclusion that .6 will not do any harm on the edc. i guess they do not agree when making the fronts. h&r is 1.3 on the fronts which is kinda conservative compare to thier race version. i assume h&r feels that 1.3 wont harm the edc function. i agree, the ride feels slightly softer but the edc will still work when you need it.
What do you mean by softer?

Jason
__________________
http://www.m3post.com/forums/signaturepics/sigpic14547_7.gif
Appreciate 0
      10-01-2008, 11:29 AM   #19
chompino
First Lieutenant
8
Rep
374
Posts

 
Drives: 08 AW M3
Join Date: Apr 2006
Location: Santa Monica, CA

iTrader: (0)

Garage List
2008 M3  [0.00]
I initially had the H&R springs on my car before I got the coilovers, and I was very happy with them. The ride didn't feel too bouncy and it gave the car a much better stance. It was also nice that they worked with EDC. I've had H&R's on a lot of my previous cars and never had a problem with them.

Quote:
Originally Posted by Sticky View Post
So Eibach and H&R only differ as far as the drop in the front? In that case the Eibach might be the better choice as I already scrape a bunch at the stock height.
Wow, I can't believe you scrape with stock height! lol. My coilovers are on the lowest settings possible and it is still very drivable. I hardly ever scrape unless I'm just being careless.
Appreciate 0
      10-01-2008, 12:03 PM   #20
FrenchBoy
Major
FrenchBoy's Avatar
France
42
Rep
1,376
Posts

 
Drives: '09 E90 M3
Join Date: Mar 2006
Location: Seattle, WA

iTrader: (0)

On a related topic. Will BMW void EDC warranty issues when springs have been upgraded?

Thanks.
__________________

2009 E90 M3 | SG | FR | 6Speed | Akrapovic Evo | JRZ RS1 | StopTech Trophy | Cantrell Brake Ducts
Appreciate 0
      10-01-2008, 01:52 PM   #21
Sedan_Clan
Banned
Brazil
130
Rep
10,918
Posts

 
Drives: '14 335i(prev.IB,AW M3's & X5)
Join Date: Jun 2006
Location: On 2 wheels clipping an apex!

iTrader: (25)

Quote:
Originally Posted by FrenchBoy View Post
On a related topic. Will BMW void EDC warranty issues when springs have been upgraded?

Thanks.
That's a possibility if they can prove that the springs caused an issue.
Appreciate 0
      10-01-2008, 02:36 PM   #22
Sticky
Banned
United_States
30
Rep
2,244
Posts

 
Drives: E92 Jerez DCT M3
Join Date: Jan 2008
Location: Anaheim Hills / Malibu

iTrader: (0)

Quote:
Originally Posted by chompino View Post
I initially had the H&R springs on my car before I got the coilovers, and I was very happy with them. The ride didn't feel too bouncy and it gave the car a much better stance. It was also nice that they worked with EDC. I've had H&R's on a lot of my previous cars and never had a problem with them.



Wow, I can't believe you scrape with stock height! lol. My coilovers are on the lowest settings possible and it is still very drivable. I hardly ever scrape unless I'm just being careless.
I have a steep driveway and a lot of entrances to shopping centers and such have the initial steep little incline. I have to be careful at the stock height, I am sure I am not the only one.

Any way, I am having H & R's installed as we speak.
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 12:10 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