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
 
Lux Angel Eyes
Post Reply
 
Thread Tools Search this Thread
      11-23-2009, 10:19 PM   #1
rsmamg
Flying First Class
United_States
13
Rep
584
Posts

 
Drives: M
Join Date: Sep 2008
Location: CA

iTrader: (0)

Need Help re: Dropping E92 w/ EDC

I have read so many threads on different springs and their effects on handling and EDC, but still confused about what decision I should make.

My situation:
1. E92 M3 leased for 2 more years. (approx. = 22.5k miles left.)
2. Would like a nice drop for the remaining time.
3. I have EDC and do not want to deal with the headache of the "possibility" that the shocks could get damaged/fail.

What I have considered:
1. Dinan springs: drop not enough for my taste.
2. Eibach springs: I hear they are made with EDC in mind. Drop is fine. Still worried my EDC/shocks will be a problem.
2. Coilovers: KW v3 w/ EDC module. Itís expensive, but I wouldn't mind if it would give me peace of mind and/or some sort of guarantee (I know nothing is 100%) that my EDC/shocks will not give me a problem for the remainder of my lease.

My questions:
1. Are coilovers a solid alternative to the EDC/shock damage/wear?
2. Are they essentially a full suspension replacement in the sense that I wonít likely damage anything else on the car since the springs and shocks are both replaced and meant to work together?

Much appreciated guys. Thank you for your help in advance. Feel free to give other suggestions as well as your thoughts.
Appreciate 0
      11-24-2009, 09:37 AM   #2
CSanto
Lieutenant Colonel
35
Rep
1,895
Posts

 
Drives: 2009 E92 M3
Join Date: Feb 2009
Location: New York

iTrader: (2)

Coilovers wont damage anything, they replace the shocks.
If you don't track the car often, its a waste of money.
Appreciate 0
      11-24-2009, 12:39 PM   #3
Bob MG
Moderating
Bob MG's Avatar
United Arab Emirates
71
Rep
1,878
Posts

 
Drives: like a muppet
Join Date: Oct 2009
Location: Dubai

iTrader: (0)

Sport springs H & R

I had the same dilemma as you re EDC. I have always used coilovers and could not fit bilstein as they do not make a edc compatible kit, and haven't heard great reviews re KW kit.

I fitted H & R sport springs and they are really impressive. They handle really well, they drop perfecty (25mm front an 15mm rear) and they are also not as hard as I expected. in fact the ride is really comfortable. I run 20 inch HREs and it's a great set up. Check out pics in my profile for visuals of the drop.

I figure H & R wouldn't make a product that would damage your standard shocks and EDC setup
Appreciate 0
      11-24-2009, 12:47 PM   #4
808MGuy
Colonel
808MGuy's Avatar
49
Rep
2,287
Posts

 
Drives: 2009 E90 M3
Join Date: Jun 2008
Location: Oahu, Hawaii

iTrader: (3)

There is no such thing as a sure thing when it comes to mods. Just get whatever fits your application best which in my opinion would be just springs. Make sure you get it installed by good installer and you should be fine for the remainder of your lease.
__________________
09 E90 M3 - Interlagos Blue / Black Novillo / Sycamore Anthracite / Eibach / HRE

Appreciate 0
      11-24-2009, 03:50 PM   #5
L-Altos
Private
1
Rep
90
Posts

 
Drives: E90 M3
Join Date: Jul 2009
Location: Illinois

iTrader: (0)

Since your car is leased, I really doubt there will be any shock damage within the two years you have left.
Appreciate 0
      11-25-2009, 12:37 AM   #6
Tyler McQuarrie
Private
United_States
2
Rep
77
Posts

 
Drives: 2008 E90 M3
Join Date: Dec 2008
Location: S.F. Bay Area

iTrader: (1)

KWv3!!!!! Best option
__________________
Appreciate 0
      12-01-2009, 12:39 AM   #7
Salespunk
First Lieutenant
6
Rep
341
Posts

 
Drives: Slow
Join Date: Mar 2007
Location: SlowCal

iTrader: (0)

KW v3 will not damage your EDC since you will have to remove the EDC shocks. At the end of your lease you would have to pay to have EDC re-installed. The theory of springs ruining your shocks is a myth based in reality. People used to put race springs on VW's and like with fairly inexpensive stock shocks and they would wear out after a few years. The springs available now are very similar to stock in terms of spring rates and so damage to your shocks is very unlikely unless there is some sort of manufacturer defect. The problem is that the dealer will not cover that defect if you have aftermarket springs. That is the real risk.
Appreciate 0
      12-01-2009, 01:21 AM   #8
rzm3
Moderator
rzm3's Avatar
224
Rep
4,603
Posts

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

iTrader: (14)

To be honest, if you are not going on the track/autocross, there is absolutely no point to get a coilover kit. They run at least $2k, plus install (and uninstall when your lease is up) $1k, alignment $200, and potentially additional problems, so you are looking at a lot of investment.

If you want to play it safe, get Dinan, they provide warranty if your EDC fails. If you want more drop, get Eibach, they don't offer warranty but many members have them and probably have accumulated hundreds of thousands of miles in total driving distance.

GL!
__________________
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
      12-06-2009, 08:30 PM   #9
OverDrive
CHEAT TO WIN!!
OverDrive's Avatar
Canada
24
Rep
1,329
Posts

 
Drives: M3
Join Date: Oct 2007
Location: Toronto

iTrader: (0)

is the EDC still functional with after market springs?
Appreciate 0
      12-06-2009, 09:29 PM   #10
TheKosherStogie
Lieutenant Colonel
TheKosherStogie's Avatar
United_States
46
Rep
1,617
Posts

 
Drives: 08 M3 DCT AW/Red
Join Date: May 2009
Location: West Hollywood

iTrader: (1)

^yes, or at least with most
__________________
C6 CORVETTE ZR1
BW C13 - 1:53:7
E92 M3 ZCP
KW CS w/Rs3 - WSIR 1:32:8 / BW C13 1:59:2
APR Wing/Rs3 - WSIR 1:30:9 / BW C13 1:57:7
Appreciate 0
      12-06-2009, 10:41 PM   #11
mdrobc13
Lieutenant Colonel
mdrobc13's Avatar
United_States
42
Rep
1,618
Posts

 
Drives: Made in Bavaria
Join Date: Oct 2007
Location: On a base somewhere near or afar!

iTrader: (5)

Garage List
2012 BMW 550i  [5.00]
Send a message via MSN to mdrobc13 Send a message via Yahoo to mdrobc13
Quote:
Originally Posted by rldzhao View Post
To be honest, if you are not going on the track/autocross, there is absolutely no point to get a coilover kit. They run at least $2k, plus install (and uninstall when your lease is up) $1k, alignment $200, and potentially additional problems, so you are looking at a lot of investment.

If you want to play it safe, get Dinan, they provide warranty if your EDC fails. If you want more drop, get Eibach, they don't offer warranty but many members have them and probably have accumulated hundreds of thousands of miles in total driving distance.

GL!
I agree I did Dinan since its warranty complied with my factory one and gave me piece of mine. My car is not leased so I have a slightly different perspective. But why pay all the money for KW coilovers that you'll have to pay to get removed in less than 24months? Also if you damage your EDC system there's an added cost there. I'd say for a leased car its not worth the $$ investment..just for looks if you don't track or autocross the car. But its your money and sounds like IF Dinan wasn't enough drop for you then Eibach is your next best bet.
__________________
'14 F06 650xi Gran Coupe (Carbon Black)- Mine #1
'10 e70 X5M (Sapphire Black Mettalic) - Mine #2
'12 F10 550i (Dinan modded) - Gone
'10 e71 X6 35iDrive SAV (Space Gray) - Gone
'08 e92 M3 coupe (Sparkling Graphite) -Gone
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 06:03 PM.




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