BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Today's Posts


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Suspension | Brakes | Chassis
 
Post Reply
 
Thread Tools Search this Thread
      08-01-2015, 01:34 PM   #1
simpleM3
Major
simpleM3's Avatar
165
Rep
1,403
Posts

Drives: 06' E46 M3 ZCP
Join Date: Nov 2013
Location: Fairfax, VA

iTrader: (13)

Garage List
19’ BMW M5C  [0.00]
2007 E61 530XI  [0.00]
2006 E46 M3  [0.00]
Springs vs. KW Sleeves

I have been researching lowering options for my car. I haven't had my car long enough to determine if I want to fully upgrade the suspension. It's highly unlikely that I will ever track my car. I would like to lower the car, but I want to do that without compromising the stock performance (handling). i would also like to avoid creating suspension noises. What's the benefit of springs over KW sleeves or vice versa? Also, what am I losing, if applicable, if I changed to one of these two options. 3k on coilovers for a car I put maybe 50 miles a week on. All inputs are welcome
Appreciate 0
      08-01-2015, 02:10 PM   #2
pooyab
Major
pooyab's Avatar
330
Rep
1,158
Posts

Drives: 2011 BMW M3 2020 BMW M5C
Join Date: Jan 2014
Location: Bay Area, CA

iTrader: (2)

Garage List
2011 BMW M3  [0.00]
The KWs are just height adjustable springs and they're 3xs the price of eibach, swift and h&r. I wouldn't spend 3k on coilovers if you're not tracking it.
__________________
Interlagos Blue/Speed Cloth | BayOptiks DTM Headlights | Alpine Stage 2 | KW Clubsport | Resonated X-Pipe | Eisenmann Race | StopTech BBK | TE37SL | YFCM CF Driveshaft | Hotchkis F/R Sways | F/R Endlinks | Turner Control Arms and Front Tension Bushings | Powerflex Diff Bushings | Turner Solid Subframe Bushings | MS Underdrive Pulley and Intake | Alpine DCT Tune | Karbonius Intake | Carbon Roof (TBD)
Appreciate 0
      08-02-2015, 08:26 AM   #3
k3silk
Banned
k3silk's Avatar
United_States
147
Rep
1,103
Posts

Drives: 11 M3 & 14 M5
Join Date: Apr 2010
Location: M.D

iTrader: (6)

Im in the same boat as you... Live in Rockville Maryland first I have to research what springs to get then I have to find out where to get them installed.
Appreciate 0
      08-02-2015, 05:49 PM   #4
simpleM3
Major
simpleM3's Avatar
165
Rep
1,403
Posts

Drives: 06' E46 M3 ZCP
Join Date: Nov 2013
Location: Fairfax, VA

iTrader: (13)

Garage List
19’ BMW M5C  [0.00]
2007 E61 530XI  [0.00]
2006 E46 M3  [0.00]
Let me save you the trouble. If you're going to do springs, Swift springs are the best and should be the only choice. best drop and performance combined. i'm almost 100% about going with them, just need to know where to go to get them installed. i've always had coilovers, but with the EDC, I rather just go with lowering the car and if things change, go from there.


Quote:
Originally Posted by k3silk View Post
Im in the same boat as you... Live in Rockville Maryland first I have to research what springs to get then I have to find out where to get them installed.
Appreciate 0
      08-02-2015, 06:12 PM   #5
atruelunatic
Lieutenant
96
Rep
473
Posts

Drives: n/a
Join Date: Jun 2011
Location: Seattle, WA

iTrader: (1)

Quote:
Originally Posted by simpleM3 View Post
Let me save you the trouble. If you're going to do springs, Swift springs are the best and should be the only choice. best drop and performance combined. i'm almost 100% about going with them, just need to know where to go to get them installed. i've always had coilovers, but with the EDC, I rather just go with lowering the car and if things change, go from there.
Changing out springs are super easy for a DIY if you have the space to work under your car. I'm not too savy in car mechanics, but was able to do the spring change with a DIY in the DIY thread. If not, I would think a shop would charge about 3-4 hours worth of labor (Most BMW familiar shops charge about $80-125/hr).
__________________
2011 e92 JzB 6MT
Akrapovic Evolution, ESS Tune, KW V3
Appreciate 0
      08-03-2015, 10:10 AM   #6
simpleM3
Major
simpleM3's Avatar
165
Rep
1,403
Posts

Drives: 06' E46 M3 ZCP
Join Date: Nov 2013
Location: Fairfax, VA

iTrader: (13)

Garage List
19’ BMW M5C  [0.00]
2007 E61 530XI  [0.00]
2006 E46 M3  [0.00]
I've done coilovers several times, but never springs because I don't have the spring compression tool. I also don't want to spend the time on it because my time is very limited these days.


Quote:
Originally Posted by atruelunatic View Post
Changing out springs are super easy for a DIY if you have the space to work under your car. I'm not too savy in car mechanics, but was able to do the spring change with a DIY in the DIY thread. If not, I would think a shop would charge about 3-4 hours worth of labor (Most BMW familiar shops charge about $80-125/hr).
Appreciate 0
      08-03-2015, 10:21 AM   #7
NoSHAM3
First Lieutenant
NoSHAM3's Avatar
No_Country
72
Rep
385
Posts

Drives: a gas guzzler
Join Date: Jan 2015
Location: 5252

iTrader: (3)

Quote:
Originally Posted by simpleM3 View Post
I've done coilovers several times, but never springs because I don't have the spring compression tool. I also don't want to spend the time on it because my time is very limited these days.
The spring compression tool can be borrowed for free from your local auto parts store. Time, on the other hand, is most certainly not free.
Appreciate 0
      08-03-2015, 11:07 AM   #8
atruelunatic
Lieutenant
96
Rep
473
Posts

Drives: n/a
Join Date: Jun 2011
Location: Seattle, WA

iTrader: (1)

Quote:
Originally Posted by simpleM3 View Post
I've done coilovers several times, but never springs because I don't have the spring compression tool. I also don't want to spend the time on it because my time is very limited these days.
Very understandable. I would think a shop would probably charge 4 hours on this (highballing at 1 hour per spring). Rates will of course be dependent on where you are.
__________________
2011 e92 JzB 6MT
Akrapovic Evolution, ESS Tune, KW V3
Appreciate 0
      08-06-2015, 09:27 AM   #9
m3aviator
Banned
m3aviator's Avatar
United_States
131
Rep
596
Posts

Drives: BMWs
Join Date: Apr 2014
Location: NJ

iTrader: (0)

Buy a spring compressor tool from harbor freight for $12. Springs are very easy diy.
Appreciate 0
Post Reply

Bookmarks


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 04:26 AM.




m3post
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