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Question re Bilstein B8's in a 83 633CSI

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jbmike
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Question re Bilstein B8's in a 83 633CSI

Post by jbmike » Sun Jun 06, 2021 1:47 am

Work is progressing nicely on my 83 CSI and I'm now addressing the suspension & brakes.
As I prefer a somewhat stiffer ride I went with Bilstein B8's and H&R Sport springs.
Question re the rear shocks for anyone who've used B8's.
The rear B8's have an adjustable spring perch (a steel clip that fits into different slots on the shock housing).
There're no instructions on which slot to set the perch at... Any suggestions?

Thanks in advance!
...Mike

emac
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Re: Question re Bilstein B8's in a 83 633CSI

Post by emac » Mon Jun 07, 2021 2:10 am

I cant recall the exact one, but here is a picture from my recent install on a 87 m6. The HR lower the car a little. So, if you measure from the bottom of the OEM strut to the perch and set the new ones up with the same measurement (or as close as possible) that will give you a little drop from stock. That is how I figured it out. HTH
20210320_154716.jpg
20210320_154716.jpg (1.96 MiB) Viewed 108 times

emac
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Re: Question re Bilstein B8's in a 83 633CSI

Post by emac » Mon Jun 07, 2021 2:21 am

20210208_182128.jpg
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This how it turned out

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hornhospital
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Re: Question re Bilstein B8's in a 83 633CSI

Post by hornhospital » Mon Jun 07, 2021 3:38 am

Drive it a bit. It's going to settle from that static shot just down from the lift.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"; '95 318is "Bebe"

emac
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Re: Question re Bilstein B8's in a 83 633CSI

Post by emac » Mon Jun 07, 2021 4:39 pm

hornhospital wrote:
Mon Jun 07, 2021 3:38 am
Drive it a bit. It's going to settle from that static shot just down from the lift.
ya think?

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hornhospital
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Re: Question re Bilstein B8's in a 83 633CSI

Post by hornhospital » Tue Jun 08, 2021 4:21 am

Yes, I do think. If you like the stance fresh off the lift, you'll likely end up moving the perch ring down a slot after it settles. BT, DT.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"; '95 318is "Bebe"

emac
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Re: Question re Bilstein B8's in a 83 633CSI

Post by emac » Wed Jun 09, 2021 5:53 pm

hornhospital wrote:
Tue Jun 08, 2021 4:21 am
Yes, I do think. If you like the stance fresh off the lift, you'll likely end up moving the perch ring down a slot after it settles. BT, DT.

I think I would move the perch up a notch if it settled too much....

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hornhospital
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Re: Question re Bilstein B8's in a 83 633CSI

Post by hornhospital » Thu Jun 10, 2021 1:45 am

You're absolutely right. I was thinking upside down. Apologies for my brain cramp. Point is it will likely change and require further adjustment. Mine did, but it's literally been years since I've touched the rear suspension bits. All I could remember was it needed tweaking after putting ~100 miles on it.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann";'87 325is "Odette"; '93 325is "Elvira"; '95 M3 "Ashlyn"; '95 318is "Bebe"

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