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Larger Sway bar advice
Posted: Thu May 31, 2018 11:41 am
by brickwhite
Looking for any advice on upgraded sway bars to compensate of my larger 17" 090 BBS staggered wheels.
My stock setup is 19mm front and 16mm rear.
IE has some
http://www.iemotorsport.com/bmw/item/e28swaybars.html
25mm front
19mm rear
And UUC has some
http://store.uucmotorwerks.com/swaybar- ... p1419.aspx
27mm front
22mm Rear
Seems pretty aggressive.
Re: Larger Sway bar advice
Posted: Thu May 31, 2018 12:34 pm
by Carlp336
i run ST bars on mine
Re: Larger Sway bar advice
Posted: Thu May 31, 2018 1:30 pm
by wattsmonkey
You may actually have 15.5mm on the rear! The 16mm rear is the US M6 set up, I believe.
From my experience, you'll need to weld in different mounts for the larger bars: I had clearance issues even with the US spec M6 22mm front. I had the 16mm rear and the car did handle very well indeed.
Real OEM shows a stock M635 Euro set up to be 25mm front and 18mm rear, like (some of the) E28 M5s, but I'd like to find out if any M635s actually had this set up. The E28 M5s with the thicker arbs had softer boge shocks rather than Bilstein.
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 5:29 am
by baders
I went with the IE sway bars on LOCUTUS. Needed to do some minor bracket welding to get the correct fit but no biggy. Have not run the car yet. Which reminds me, I have to crack on with my project, D'Oh.
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 12:53 pm
by Carlp336
not sure about the others buts for what its worth i didnt have to weld anything on the ST bars.
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 1:35 pm
by brickwhite
What size ST bars did you use?
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 2:11 pm
by Da_Hose
You should take a look at this thread.
viewtopic.php?f=17&t=22504&hilit=sway+bar
We had some real good discussion about the effects of bar changes. Since I run staggered wheels, sticking with the 22mm front, and upgrading the rear sounded good. Installing the 18mm in the rear has worked out really well for me.
Jose
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 2:33 pm
by brickwhite
Thanks! That's what I was looking for!
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 2:49 pm
by Carlp336
brickwhite wrote: ↑Fri Jun 01, 2018 1:35 pm
What size ST bars did you use?
28mm front
22mm rear
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 3:13 pm
by brickwhite
Any one selling at 18mm rear, i think that's where I want to go.
I plan on reinforcing the sway bar connections
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 6:17 pm
by Da_Hose
Check with Ralph. He is really good about getting all sorts of stuff.
Jose
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 6:35 pm
by GRNSHRK
Jose, true dat
Note for Carl, you are referring to sway bars that are available for the E12 chassis, not E28 based
I have the same sizes, but from Korman Autoworks, 28mm front and 22mm rear
And while it's true that no additional welding or strengthening is "required", my Dinan adjustable camber rear subframe did come with reinforced mounting brackets for the rear bar
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 6:44 pm
by Tommys 89 635
when i upgraded the sway bars on my e24 , the welds broke away so i had to reinforce them 2 times.
Re: Larger Sway bar advice
Posted: Fri Jun 01, 2018 8:32 pm
by Carlp336
GRNSHRK wrote: ↑Fri Jun 01, 2018 6:35 pm
Jose, true dat
Note for Carl, you are referring to sway bars that are available for the E12 chassis, not E28 based
I have the same sizes, but from Korman Autoworks, 28mm front and 22mm rear
And while it's true that no additional welding or strengthening is "required", my Dinan adjustable camber rear subframe did come with reinforced mounting brackets for the rear bar
yours is too..
Re: Larger Sway bar advice
Posted: Sat Jun 02, 2018 12:30 am
by 86_6series
Re: Larger Sway bar advice
Posted: Sat Jun 02, 2018 10:29 pm
by GazM3
Definetly upgrade the rear with staggered. If u don’t have one already also install the rear strut brace.
Re: Larger Sway bar advice
Posted: Tue Jun 12, 2018 1:28 am
by ericono
Sorry, my question was answered after rereading the thread.
Eric