 Bilstein HD rear lower spring perch height help, Recommendations for lower spring perch setting on bilsteins |
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| Krohn |
 Apr 13 2019, 01:05 PM
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#1
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Newbie  Group: Members Posts: 9 Joined: 6-November 14 From: Santa Barbara, CA Member No.: 18,091 Region Association: Southern California  |
I'm finally at the fix the severely sagging rear springs project for my car, and am wondering if there's any guidance on where to set the lower spring perch for the new rear Bilstein shocks?
I'm keeping the car as sock as possible, think of me as a James May if you must, so I have a new set of stock ride height springs (85 lb) and the new replacement struts. Comparing the old and the new side by side, it almost seems that I need to move t he circlip all the way to the top on the new shocks... but that seems almost crazy! Since I'm aware that the new springs, at 85 lbs, are heavier than the originals (maybe 70?), would it be better to move the perch down one relative to the old shocks? Old springs/shock on the left, new on the right (IMG:http://www.914world.com/bbs2/uploads_offsite/1.bp.blogspot.com-18091-1555182313.1.jpg) Any advice or recommendations out there? The stock rear sway bars stay (front and rear), which was also a driving motivation for keeping a lighter weight spring in the back. Maybe it's time for a project thread... but progress is piecemeal and slow, so it might drag on, and on, and on... Thanks! Robert |
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| 914Sixer |
Apr 13 2019, 01:24 PM
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914 Guru Group: Members Posts: 8,896 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region 
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Start at 2 up from bottom The spring carries the weight not the shock.
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| bbrock |
Apr 13 2019, 01:40 PM
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#3
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914 Guru Group: Members Posts: 5,269 Joined: 17-February 17 From: Montana Member No.: 20,845 Region Association: Rocky Mountains
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QUOTE(914Sixer @ Apr 13 2019, 01:24 PM)  Start at 2 up. The spring carries the weight not the shock. (IMG:style_emoticons/default/agree.gif) I probably shouldn't weigh in on this since I have yet to put any weight on my rebuilt rear struts, but 2 up seems like a good starting place. The stock springs actually run around 52 to 57 ish if you do the math on the info provided in the factory manual. It looks to me like 2 down would most closely match the height of your old perches but with heavier springs, I agree on dropping them down more. I put mine at the top because I am using my stock springs and the top ring matched the perch height of the Boge shocks I replaced but I may have to fiddle with that once the suspension is fully loaded. +1 on starting a build thread! (IMG:style_emoticons/default/beer.gif) |
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Posts in this topic
Krohn Bilstein HD rear lower spring perch height help Apr 13 2019, 01:05 PM
Mark Henry You won't really know till you set it on the g... Apr 14 2019, 05:32 AM 914Sixer Edited post to read 2 up from bottom. Sorry for t... Apr 14 2019, 09:47 AM
rgalla9146
Edited post to read 2 up from bottom. Sorry for ... Apr 14 2019, 10:05 AM bbrock
Edited post to read 2 up from bottom. Sorry for... Apr 14 2019, 10:17 AM rgalla9146
[quote name='rgalla9146' post='2705198' date='Apr... Apr 16 2019, 06:47 PM mepstein I have 160lb springs on a narrow body 3.2 conversi... Apr 14 2019, 10:24 AM Retroracer I have the same springs as rgalla9146, 2nd from bo... Apr 14 2019, 12:10 PM rgalla9146
I have the same springs as rgalla9146, 2nd from b... Apr 14 2019, 07:02 PM |
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