E90Post
 


GT Haus
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Sway bars, are they worth it?



Reply
 
Thread Tools Search this Thread
      01-19-2012, 05:11 AM   #1
Legato2057
First Lieutenant
 
Legato2057's Avatar
 
Drives: 2008 monaco blue e90 335i
Join Date: Jun 2009
Location: San Diego

Posts: 393
iTrader: (1)

Sway bars, are they worth it?

I have a 2008 335i sedan lowered on Koni FSD and Eibach pro springs. I am considering getting a sway bar kit (maybe eibach or hotchkis). I don't do many track runs - hopefully this summer tho. Is it really with it? Does it make enough of a difference to justify the $500?
__________________
2008 Monaco Blue/Tan interior 335i sedan. Mods: AFE intake w/ scoops, AFE Exhaust, ER FMIC, Koni FSD/Eibcach Pro-Kit, Breyton Race GTS wheels w/ Continental ExtremeContact DW tires, Cusco OS strut bar. BavAuto Black/Beige seat covers w/ black floor mats, M3 rep trunk lip, eBay front splitters.
Legato2057 is offline   United_States
0
Reply With Quote
      01-19-2012, 06:12 AM   #2
jvsxn
Lieutenant Colonel
 
jvsxn's Avatar
 
Drives: e-ninety
Join Date: Jul 2011
Location: San Jose, CA

Posts: 1,718
iTrader: (8)

Send a message via AIM to jvsxn
Quote:
Originally Posted by Legato2057 View Post
I have a 2008 335i sedan lowered on Koni FSD and Eibach pro springs. I am considering getting a sway bar kit (maybe eibach or hotchkis). I don't do many track runs - hopefully this summer tho. Is it really with it? Does it make enough of a difference to justify the $500?
Personally, I wouldn't get it regardless of the price especially if you're not going to track the car. It's one thing to stiffen up the ride quality but if you're going to keep stiffening the suspension (springs,struts, sway bar, etc), it might reduce your sense of your loss of traction if it were to ever happen. I'll try to find the source for this bit of info but hopefully it helped.
__________________
Hiatus
jvsxn is offline   United_States
0
Reply With Quote
      01-19-2012, 09:11 AM   #3
CALWATERBOY
Captain
 
CALWATERBOY's Avatar
 
Drives: 2009 E93 N54
Join Date: Jan 2011
Location: San Francisco

Posts: 846
iTrader: (0)

Quote:
Originally Posted by Legato2057 View Post
I have a 2008 335i sedan lowered on Koni FSD and Eibach pro springs. I am considering getting a sway bar kit (maybe eibach or hotchkis). I don't do many track runs - hopefully this summer tho. Is it really with it? Does it make enough of a difference to justify the $500?
Warning: Stock rear sway's so thin that it may be hard to find. Try M3 sways and while you're in there, R&R the rear subframe bushings w/M3 parts. Install a LSD. Name:  DevilSmiley.gif
Views: 827
Size:  556 Bytes

Your life is greatly improved w/flat cornering; a suddenly very cohesive rear with all your ponies getting power to the ground.

Sex is better. Food tastes great! Careful: Your smile may blind oncoming traffic....

Last edited by CALWATERBOY; 01-19-2012 at 01:13 PM.
CALWATERBOY is offline  
0
Reply With Quote
      01-19-2012, 11:45 AM   #4
cvc 22349a
Colonel
 
cvc 22349a's Avatar
 
Drives: 335i
Join Date: Sep 2007
Location: SF Bay

Posts: 2,228
iTrader: (8)

I wouldn't. No LSD=leave sway bars alone..
__________________
2007 E90 335i, TiAg, 6AT, ZPP, ZSP, ZCW, 6FL, HD
Quaife lsd, ETS fmic, GIAC s/w, Dinan intake/exhaust/oc, KW/M3 susp, Apex Arc 8, Mich PSS
cvc 22349a is offline   United_States
0
Reply With Quote
      01-19-2012, 02:48 PM   #5
Legato2057
First Lieutenant
 
Legato2057's Avatar
 
Drives: 2008 monaco blue e90 335i
Join Date: Jun 2009
Location: San Diego

Posts: 393
iTrader: (1)

Thanks for the help. I was planning on getting an LSD soon, so I think the best plan is to wait until after that at least. I want to make sure that when I start upgrading the horsepower that it transfers to the pavement efficiently. After LSD is COBB AP and FMIC!
__________________
2008 Monaco Blue/Tan interior 335i sedan. Mods: AFE intake w/ scoops, AFE Exhaust, ER FMIC, Koni FSD/Eibcach Pro-Kit, Breyton Race GTS wheels w/ Continental ExtremeContact DW tires, Cusco OS strut bar. BavAuto Black/Beige seat covers w/ black floor mats, M3 rep trunk lip, eBay front splitters.
Legato2057 is offline   United_States
0
Reply With Quote
      01-19-2012, 08:30 PM   #6
Fred_Boosted
First Lieutenant
 
Fred_Boosted's Avatar
 
Drives: 335i
Join Date: Nov 2011
Location: USA

Posts: 346
iTrader: (1)

I would more likely to get rear sway first.

Front is not that necessary. BTW, LSD is a great upgrade, I will do it when I get my money.

Front<Strut<Rear<LSD
__________________
Fred_Boosted is offline  
0
Reply With Quote
      01-19-2012, 11:09 PM   #7
CJ421
Brigadier General
 
CJ421's Avatar
 
Drives: 2011 E92 335i
Join Date: Feb 2011
Location: PA

Posts: 3,261
iTrader: (1)

Garage List
2011 BMW 335i  [4.66]
Unless you have an LSD as noted, don't do the rear sway. You will be worse off in turns. The inside wheel gets nearly all of the power in a tight turn because of that open differential; a thicker rear sway will actually lessen the grip and you'll have even less 'push' going through.

FYI rear sway = drop the subframe, which is very expensive. Do it at the same time as LSD + subframe brushings.
__________________
2011 BMW E92 335i, 6MT, Le Mans blue - Quaife LSD, JRZ RS Pro, JRZ camber plates, Eibach ERS, full M3 susp, custom toe arms, Powergrid end-links, SS brake lines, brake ducting, Michelin PSS, UUC SSK, ETS FMIC, ER CP, Perf. Exhaust, VAC RSIK, Sparcos; work by VAC Motorsports in Philadelphia
CJ421 is offline   United_States
0
Reply With Quote
      01-20-2012, 09:28 AM   #8
Fred_Boosted
First Lieutenant
 
Fred_Boosted's Avatar
 
Drives: 335i
Join Date: Nov 2011
Location: USA

Posts: 346
iTrader: (1)

Quote:
Originally Posted by CJ421 View Post
Unless you have an LSD as noted, don't do the rear sway. You will be worse off in turns. The inside wheel gets nearly all of the power in a tight turn because of that open differential; a thicker rear sway will actually lessen the grip and you'll have even less 'push' going through.

FYI rear sway = drop the subframe, which is very expensive. Do it at the same time as LSD + subframe brushings.
I haven't thought of that...

hmm, sounds
__________________
Fred_Boosted is offline  
0
Reply With Quote
      01-20-2012, 09:58 AM   #9
CALWATERBOY
Captain
 
CALWATERBOY's Avatar
 
Drives: 2009 E93 N54
Join Date: Jan 2011
Location: San Francisco

Posts: 846
iTrader: (0)

Quote:
Originally Posted by CJ421 View Post
Unless you have an LSD as noted, don't do the rear sway. You will be worse off in turns. The inside wheel gets nearly all of the power in a tight turn because of that open differential; a thicker rear sway will actually lessen the grip and you'll have even less 'push' going through.

FYI rear sway = drop the subframe, which is very expensive. Do it at the same time as LSD + subframe brushings.
Translation: BMW e-diff gonna eat the soles offa yo shoes.

A macabre device programmed for your vexation, rear brake shoes disappear long before fronts, all the while providing inferior performance and feel.

The engineers responsible for that should be outed and forced to view every minute of every Oprah every day.

Take the cure! Wavetrac or Quaife for street duty, and you may thank GOD for that!
.

Last edited by CALWATERBOY; 01-20-2012 at 05:51 PM.
CALWATERBOY is offline  
0
Reply With Quote
      01-20-2012, 12:04 PM   #10
BMWsky
Major
 
Drives: 335i
Join Date: Dec 2010
Location: Webster NY

Posts: 1,244
iTrader: (1)

Quote:
Originally Posted by CALWATERBOY View Post
Translation: BMW e-diff gonna eat the soles offa yo shoes.

A macabre device programmed for your vexation, rear brake shoes disappear long before fronts, all the while providing inferior performance and feel.

The engineers responsible for that should be outed and forced to view every minute of every Oprah every day.

Take the cure! Wavetrac or Quaife for street duty, and you may thank GOD for that!
I actually enjoy reading your posts...keep it up!!!
BMWsky is offline   United_States
0
Reply With Quote
      01-20-2012, 02:34 PM   #11
CALWATERBOY
Captain
 
CALWATERBOY's Avatar
 
Drives: 2009 E93 N54
Join Date: Jan 2011
Location: San Francisco

Posts: 846
iTrader: (0)

Quote:
Originally Posted by BMWsky View Post
I actually enjoy reading your posts...keep it up!!!
I am your humble servant....Name:  Foolish Smiley.gif
Views: 711
Size:  598 Bytes
CALWATERBOY is offline  
0
Reply With Quote
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 10:44 AM.




e90post
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