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Larger Sway bar advice

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brickwhite
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Larger Sway bar advice

Post by brickwhite » Thu May 31, 2018 11:41 am

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.
- 12 535i
- 92 325ic
- 85 M635csi
- 63 Triumph Tr-4

Carlp336
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Re: Larger Sway bar advice

Post by Carlp336 » Thu May 31, 2018 12:34 pm

i run ST bars on mine
.1977 H&B 630CSI - http://www.sidedraftsix.com.

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wattsmonkey
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Re: Larger Sway bar advice

Post by wattsmonkey » Thu May 31, 2018 1:30 pm

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.
"Most of it necessary; all of it enjoyable[!]" LJKS
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baders
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Re: Larger Sway bar advice

Post by baders » Fri Jun 01, 2018 5:29 am

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. :-({|=
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Carlp336
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Re: Larger Sway bar advice

Post by Carlp336 » Fri Jun 01, 2018 12:53 pm

not sure about the others buts for what its worth i didnt have to weld anything on the ST bars.
.1977 H&B 630CSI - http://www.sidedraftsix.com.

brickwhite
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Re: Larger Sway bar advice

Post by brickwhite » Fri Jun 01, 2018 1:35 pm

What size ST bars did you use?
- 12 535i
- 92 325ic
- 85 M635csi
- 63 Triumph Tr-4

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Da_Hose
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Re: Larger Sway bar advice

Post by Da_Hose » Fri Jun 01, 2018 2:11 pm

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
1987 M6 - My dream car

brickwhite
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Re: Larger Sway bar advice

Post by brickwhite » Fri Jun 01, 2018 2:33 pm

Thanks! That's what I was looking for!
- 12 535i
- 92 325ic
- 85 M635csi
- 63 Triumph Tr-4

Carlp336
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Re: Larger Sway bar advice

Post by Carlp336 » Fri Jun 01, 2018 2:49 pm

brickwhite wrote:
Fri Jun 01, 2018 1:35 pm
What size ST bars did you use?
28mm front
22mm rear
.1977 H&B 630CSI - http://www.sidedraftsix.com.

brickwhite
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Re: Larger Sway bar advice

Post by brickwhite » Fri Jun 01, 2018 3:13 pm

Any one selling at 18mm rear, i think that's where I want to go.

I plan on reinforcing the sway bar connections
Last edited by brickwhite on Fri Jun 01, 2018 8:18 pm, edited 1 time in total.
- 12 535i
- 92 325ic
- 85 M635csi
- 63 Triumph Tr-4

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Da_Hose
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Re: Larger Sway bar advice

Post by Da_Hose » Fri Jun 01, 2018 6:17 pm

Check with Ralph. He is really good about getting all sorts of stuff.

Jose
1987 M6 - My dream car

GRNSHRK
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Re: Larger Sway bar advice

Post by GRNSHRK » Fri Jun 01, 2018 6:35 pm

Jose, true dat =D>

Note for Carl, you are referring to sway bars that are available for the E12 chassis, not E28 based [-X

I have the same sizes, but from Korman Autoworks, 28mm front and 22mm rear =D>

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 \:D/
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Tommys 89 635
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Re: Larger Sway bar advice

Post by Tommys 89 635 » Fri Jun 01, 2018 6:44 pm

when i upgraded the sway bars on my e24 , the welds broke away so i had to reinforce them 2 times.
Tommy
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Carlp336
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Re: Larger Sway bar advice

Post by Carlp336 » Fri Jun 01, 2018 8:32 pm

GRNSHRK wrote:
Fri Jun 01, 2018 6:35 pm
Jose, true dat =D>

Note for Carl, you are referring to sway bars that are available for the E12 chassis, not E28 based [-X

I have the same sizes, but from Korman Autoworks, 28mm front and 22mm rear =D>

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 \:D/
yours is too..
.1977 H&B 630CSI - http://www.sidedraftsix.com.

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86_6series
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Re: Larger Sway bar advice

Post by 86_6series » Sat Jun 02, 2018 12:30 am

I have these and they came with reinforcements.

http://www.iemotorsport.com/bmw/item/e28swaybars.html

GazM3
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Re: Larger Sway bar advice

Post by GazM3 » Sat Jun 02, 2018 10:29 pm

Definetly upgrade the rear with staggered. If u don’t have one already also install the rear strut brace.
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Re: Larger Sway bar advice

Post by ericono » Tue Jun 12, 2018 1:28 am

Sorry, my question was answered after rereading the thread.

Eric
'85 M635, '00 528iT, '98 Z3

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