E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > All-Wheel-Drive (Xi / xDrive) Talk > What is the difference of loweing car with springs and coilovers?



Reply
 
Thread Tools Search this Thread
      08-18-2010, 01:36 AM   #1
seis-speed
#savethemanuals
seis-speed's Avatar
United_States
2590
Rep
2,052
Posts

Drives: 1M | GT3 | J392 | G80
Join Date: Dec 2009
Location: West Coast

iTrader: (0)

What is the difference of loweing car with springs and coilovers?

I put H&R springs on my car and really notice a huge difference in handling and body roll. The car rides lower and I have more aggressive wheels and tires with NO RFLT.

Am I missing something by not going with a V1 coilover?
Appreciate 0
      08-18-2010, 09:24 AM   #2
MassBimmer
Major General
MassBimmer's Avatar
No_Country
313
Rep
7,437
Posts

Drives: 2023 i4 M50
Join Date: May 2009
Location: MA

iTrader: (6)

Garage List
2009 BMW  [9.24]
With springs, you don't have control over how low your drop is. Coilovers are adjustable so you can get your ride height to your desired specs. A coilover system is a spring and shock/strut combo specifically engineered to work with one another to ensure long life of the system, better handling characteristics and no unwanted side effects like a bouncy ride that can sometimes come with only springs
Appreciate 0
      08-18-2010, 09:31 AM   #3
pits200
Colonel
United_States
552
Rep
2,598
Posts

Drives: 09 335i X-Drive Black Sapphire
Join Date: Mar 2010
Location: Pittsburgh

iTrader: (1)

^ Perfect summary of the differences.

Springs = Cheaper more economical way

Coilovers = More expensive but a more refined way to drop the car.
Appreciate 0
      08-19-2010, 05:41 PM   #4
seis-speed
#savethemanuals
seis-speed's Avatar
United_States
2590
Rep
2,052
Posts

Drives: 1M | GT3 | J392 | G80
Join Date: Dec 2009
Location: West Coast

iTrader: (0)

Quote:
Originally Posted by MassBimmer View Post
With springs, you don't have control over how low your drop is. Coilovers are adjustable so you can get your ride height to your desired specs. A coilover system is a spring and shock/strut combo specifically engineered to work with one another to ensure long life of the system, better handling characteristics and no unwanted side effects like a bouncy ride that can sometimes come with only springs
Thanks!
Appreciate 0
      08-20-2010, 06:38 PM   #5
Presidio335xi
Lieutenant
22
Rep
414
Posts

Drives: 335xi coupe
Join Date: Oct 2007
Location: San Francisco

iTrader: (0)

Quote:
Originally Posted by pits200 View Post
^ Perfect summary of the differences.

Springs = Cheaper more economical way

Coilovers = More expensive but a more refined way to drop the car.
So you are calling him cheap?
__________________
2017 F82
Appreciate 0
      08-22-2010, 05:17 PM   #6
JoeyBananaz18
Brigadier General
JoeyBananaz18's Avatar
400
Rep
4,084
Posts

Drives: metrocard
Join Date: May 2009
Location: Whitestone, NY

iTrader: (3)

Quote:
Originally Posted by Presidio335xi View Post
So you are calling him cheap?
if that was the case he'd be calling 75% of the people who have lowered their cars that too.
__________________
7/18/09- I pick up my baby- 2009 E92 335i Xdrive, Space Gray over Coral Red. Premium Pkg, Cold Weather Pkg, M-Sport Pkg, 193Ms, Gloss Black grills, Custom Gloss Black Mirrors, Performance shift and E-brake boot, M3 spoiler, Euro fog switch, gloss black interior tim, Coco-Mats (red/black), H&R coilovers, 19'' Alufelgen SF-71s......
Appreciate 0
      08-22-2010, 07:01 PM   #7
forza1976
Major General
forza1976's Avatar
United_States
3513
Rep
6,626
Posts

Drives: BMW
Join Date: Aug 2007
Location: 49456

iTrader: (13)

Garage List
2022 BMW M3X  [9.50]
It's the JDM way to lower a car haha
Appreciate 0
      08-22-2010, 07:34 PM   #8
pits200
Colonel
United_States
552
Rep
2,598
Posts

Drives: 09 335i X-Drive Black Sapphire
Join Date: Mar 2010
Location: Pittsburgh

iTrader: (1)

Quote:
Originally Posted by Presidio335xi View Post
So you are calling him cheap?
Ha I suppose it can sound like that, kinda like saying a Vette is cheaper than a Ferrari.. Does that make the Vette bad??

You knew what I meant though, by comparison, lowering springs only are a cheaper alternative to coilovers.
Appreciate 0
      08-23-2010, 03:10 PM   #9
Atsnow
Captain
Atsnow's Avatar
81
Rep
967
Posts

Drives: E92 335xi, 2010 Boxster S
Join Date: Sep 2007
Location: Montreal /Plattsburgh,NY

iTrader: (1)

Quote:
Originally Posted by seis-speed View Post
I put H&R springs on my car and really notice a huge difference in handling and body roll. The car rides lower and I have more aggressive wheels and tires with NO RFLT.

Am I missing something by not going with a V1 coilover?
Here is a good explanation on why use springs

Quote:
Originally Posted by Tire Rack Website

No matter what you drive, your vehicle’s development engineers were faced with considerations that ultimately affected its performance – bumper heights, snow chain clearance and the number of people the vehicle was designed to carry. To accommodate all of those variables, your car’s suspension had to be tuned for average conditions, acceleration, braking and cornering. But if you’re not average, you may want to tune your vehicle to better match your driving style.

If you want the performance look and feel as you cruise the streets and go through the corners, then springs can provide the more aggressive appearance and more sure-footed handling that will help even the world’s finest automobiles perform even better.

Without a doubt, there is no more cost-effective way to enhance a vehicle’s performance and make it look more distinctive than a set of wheels and tires. However, the additional cornering and stopping traction they provide may be limited by the ability of the vehicle’s stock suspension to manage all of the increased traction. So in order to get more performance out of high performance tires, a suspension upgrade may be beneficial.

The first step is to lower the vehicle and increase its spring rate. Caution: Modifying a vehicle’s original springs almost always ends with unsatisfactory results. Cutting off coils or collapsing stock springs with heat may adversely affect the spring rate, multiply internal stresses and prevent them from fitting the vehicle’s suspension correctly. Properly engineered aftermarket sport springs are not only designed to fit the vehicle, but will enhance its appearance and performance at the same time.

Vehicle appearance is improved in two ways. Sport springs will typically lower vehicles to give them a more aggressive stance and reduce the vehicle’s fenderwell gap (the distance between the top of the tire and the edge of the wheelwell). When the vehicle is viewed from the side, the wheel and tire will appear to properly "fill in" the wheelwell. But when the vehicle shows fender well gap, it may look out of proportion and even create the illusion that the vehicle has been "lifted." Sport springs complete the vehicle’s appearance by lowering the vehicle and reducing fenderwell gap.

Vehicle performance is also improved by sport springs in two ways: they reduce ride height and have higher spring rates that are carefully tuned to the vehicle. This ensures sufficient load capacity and lowers the vehicle’s center of gravity for added stability. It also improves the vehicle’s responsiveness by reducing body movement, allowing the tires to function more effectively when performing at their limits.

Another solution is a complete coil-over system that combines springs and shocks along with an adjustable perch to support the spring. This set-up is most like a race set-up in that it allows tuning of the vehicle through ride height adjustment.

Eibach and H&R are two of the world’s leading spring manufacturers. They supply everyone from casual driving enthusiasts to professional racing teams. Their products are built to the highest standards and meet Germany’s tough TUV standards

Last edited by Atsnow; 11-02-2010 at 11:04 PM..
Appreciate 0
      08-23-2010, 11:54 PM   #10
ModBargains.com
Banned
United_States
485
Rep
13,582
Posts

Drives: JB E92 335i
Join Date: Feb 2008
Location: 1721 E. Lambert Rd #C, La Habra, CA 90631

iTrader: (51)

The answer is simple, you get what you pay for when it comes to vehicle suspension. As such a crucial component of your vehicle, suspension is definitely something you do not want to cheap out on.

A coilover suspension basically gives you a matched lowering spring and shock absorber combination with the added benefit of adjustable ride height and spring rates through a moveable spring perch or perches. Coilovers are to your car's advantage by reducing unsprung mass, increasing suspension travel, and allowing the car to be corner balanced.

Feel free to shoot me over a PM if you have any questions at all.

- Alan
Appreciate 0
      11-02-2010, 10:47 AM   #11
Misterstag
-={ThuGLiFe}=-
United_States
8
Rep
133
Posts

Drives: 07, 328xi e92 sports package
Join Date: Jul 2010
Location: Nor Cal

iTrader: (4)

thats a good article
Appreciate 0
      11-19-2010, 04:14 PM   #12
Prismcube
New Member
2
Rep
13
Posts

Drives: 2011 e90 335xi
Join Date: Nov 2010
Location: IN

iTrader: (0)

I would say springs are a temporary solution until you can afford coilovers.
Appreciate 0
      01-08-2011, 05:07 PM   #13
jg3360
Private First Class
jg3360's Avatar
6
Rep
120
Posts

Drives: 2009 BSM 328i X
Join Date: Aug 2010
Location: VA

iTrader: (0)

Garage List
Lowering an xi by springs or coilovers- does either void your warranty?
Appreciate 0
      01-09-2011, 08:46 AM   #14
Babydragon
Captain
Babydragon's Avatar
United_States
37
Rep
781
Posts

Drives: 2007 328xi
Join Date: Nov 2010
Location: Chic/ago

iTrader: (0)

Quote:
Originally Posted by jg3360 View Post
Lowering an xi by springs or coilovers- does either void your warranty?
Yup
Appreciate 0
      04-03-2011, 08:43 PM   #15
nicocho
Private
2
Rep
75
Posts

Drives: 330xi
Join Date: Mar 2011
Location: Toronto

iTrader: (1)

Quote:
Originally Posted by pits200 View Post
^ Perfect summary of the differences.

Springs = Cheaper more economical way

Coilovers = More expensive but a more refined way to drop the car.
would it make sense if I get coilovers with no intention to lower my car? just to replace the terrible stock suspension?
Appreciate 0
      04-03-2011, 09:56 PM   #16
Babydragon
Captain
Babydragon's Avatar
United_States
37
Rep
781
Posts

Drives: 2007 328xi
Join Date: Nov 2010
Location: Chic/ago

iTrader: (0)

Absolutely not.


Quote:
Originally Posted by nicocho View Post
Quote:
Originally Posted by pits200 View Post
^ Perfect summary of the differences.

Springs = Cheaper more economical way

Coilovers = More expensive but a more refined way to drop the car.
would it make sense if I get coilovers with no intention to lower my car? just to replace the terrible stock suspension?
Appreciate 0
      04-03-2011, 11:15 PM   #17
rogerdiaz
Captain
United_States
28
Rep
743
Posts

Drives: 2015 335i
Join Date: Sep 2010
Location: Raleigh, NC

iTrader: (2)

Any input on zsp vs kw v1?
Appreciate 0
      04-03-2011, 11:17 PM   #18
DJKhan85
Major
DJKhan85's Avatar
Trinidad_and_tobago
24
Rep
1,190
Posts

Drives: 2011 4dr 6mt Golf GTI
Join Date: Jun 2009
Location: Boston Massachusetts

iTrader: (1)

Quote:
Originally Posted by nicocho View Post
would it make sense if I get coilovers with no intention to lower my car? just to replace the terrible stock suspension?
That's what I did(well I'm lowered very little to even out the wheel gaps). It is cheaper to go new dampers if you don't plan on lowering at all.
__________________
2011 VW GTI 4dr-6mt-Sunroof-Nav-Xenons
OLD:
08 335i AW/CR/Poplar 6mt-ZSP-ZPP-ZCW-iPod-iDrive-PDC-Style 230s w/FK 452-Dinan LSD
Appreciate 0
      04-08-2011, 12:06 PM   #19
E31BMW
Major
E31BMW's Avatar
United_States
104
Rep
1,250
Posts

Drives: Cars!
Join Date: Oct 2009
Location: NYC

iTrader: (28)

i personally could care less about adjustable ride height. Are coilovers for me?
Appreciate 0
      04-14-2011, 09:13 PM   #20
Fozzy
Waaka Waaka
Fozzy's Avatar
Canada
41
Rep
486
Posts

Drives: 2009 E92 xdrive & 2015 F15
Join Date: Jul 2010
Location: Downtown Toronto

iTrader: (3)

There are two parts to adjustable...one is ongoing lowering and raising. The more important one is setting the height and rake to your personalized sweet spot.
Appreciate 0
      04-14-2011, 10:22 PM   #21
Babydragon
Captain
Babydragon's Avatar
United_States
37
Rep
781
Posts

Drives: 2007 328xi
Join Date: Nov 2010
Location: Chic/ago

iTrader: (0)

The number benefit to coilivers is being able to adjust ride height. Seeing that ride height adjustment is unimportant to you.....than yes I would get the coilovers.

It's almost like buying a turbocharger and saying you never plan on going fast.



Quote:
Originally Posted by Genek335 View Post
i personally could care less about adjustable ride height. Are coilovers for me?
Appreciate 0
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 10:39 AM.




e90post
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