 Which Springs would you intall?, The never ending BB take apart/redo continues |
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| jhynesrockmtn |
 Aug 23 2023, 06:41 PM
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#1
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Member  Group: Members Posts: 425 Joined: 13-June 16 From: spokane wa Member No.: 20,100 Region Association: Pacific Northwest 
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I am refreshing the rear suspension on my BB. Yet another project I hadn't really planned on but here we are.
I now have everything I need to reinstall the rear trailing arms and shocks. The arms got painted new bushings and bearings (thanks @iankarr and 914rubber). New Koni sports from Paragon (thanks Jason), PMB rebuilt brake calipers (thanks Eric). I found some new/old Weltmeister SP100's in a box of parts a PO had bought for another project car I have. See the photos. The only mark on the springs that came off the BB are a redish paint on each coil. The car did sit lower than stock by my eye. See photo. I don't know much about the SP100 but they do look pretty :-) Would you go all the way and install the "new" springs. I realize 100lbs are stiffer than stock. I could always go back if I don't like the ride. The koni's aren't full coil overs but have a bit of ride height adjustment. The middle clip position matches the old Koni shocks I removed. The springs do sit 2 to 3 mm taller with no compression.    |
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| 914werke |
Aug 23 2023, 07:45 PM
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#2
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"I got blisters on me fingers" Group: Members Posts: 10,943 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest
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Id run um (IMG:style_emoticons/default/smile.gif)
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| 914Sixer |
Aug 23 2023, 08:01 PM
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#3
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914 Guru Group: Members Posts: 9,018 Joined: 17-January 05 From: San Angelo Texas Member No.: 3,457 Region Association: Southwest Region
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Old school Orange Koni, 100 # springs
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| Front yard mechanic |
Aug 23 2023, 08:27 PM
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#4
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Senior Member Group: Members Posts: 1,229 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None
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Use the new shocks and the sp100s and move the clip down
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| scallyk9 |
Aug 23 2023, 08:52 PM
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#5
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Member Group: Members Posts: 340 Joined: 16-October 16 From: Port Orchard, WA, USA Member No.: 20,499 Region Association: Pacific Northwest
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When I redid the rear suspension on my BB, I used the very same Weltmeister 100# springs but went to Bilstein shocks because they would have been available as an option.
My '74 3.2L conversion does have the yellow adjustable Koni's however but a much higher spring rate other changes won't allow me to make a valid comparison. The 100# rear springs on my BB did not really affect the "feel" ride but I do feel they were a benefit. That car is set front and rear at stock ride height. I wouldn't hesitate to use them. |
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| rfinegan |
Aug 24 2023, 07:02 AM
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#6
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Senior Member Group: Members Posts: 1,026 Joined: 8-February 13 From: NC Member No.: 15,499 Region Association: MidAtlantic Region
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New Springs for sure, unless its concourse judged
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| Shivers |
Aug 24 2023, 08:38 AM
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#7
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Senior Member Group: Members Posts: 2,781 Joined: 19-October 20 From: La Quinta, CA Member No.: 24,781 Region Association: Southern California |
I have the 140 lbs on my car, the 100’s should be nice for play and still have some give.
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| Root_Werks |
Aug 24 2023, 08:49 AM
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#8
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Village Idiot Group: Members Posts: 8,484 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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QUOTE(914Sixer @ Aug 23 2023, 07:01 PM)  Old school Orange Koni, 100 # springs (IMG:style_emoticons/default/agree.gif) I'm running this combo on a 914-6 and really like it for street driving. Granted a 914-6 will be a little heavier, but would think it will still be a good street combo for most 914's. I turned my Koni's 1-turn less than full dampen. (IMG:style_emoticons/default/driving.gif) |
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| windforfun |
Aug 25 2023, 12:25 PM
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#9
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Senior Member Group: Members Posts: 1,985 Joined: 17-December 07 From: Blackhawk, CA Member No.: 8,476 Region Association: None |
100 lb Weltmeisters.
(IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/beer3.gif) (IMG:style_emoticons/default/beer3.gif) |
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| CCE |
Aug 25 2023, 01:16 PM
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#10
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CCE Group: Members Posts: 328 Joined: 28-December 21 From: Mexico Member No.: 26,203 Region Association: NineFourteenerVille
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I installed the 914rubber springs 100Lb, with Bilsteins B6 and they work perfect! Firm but not to a discomfort level. And Mexico streets are I can testify the worst all over, I also don't have stabilizer bars, which may also come to affect ride (wish I did).
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| Mikey914 |
Aug 25 2023, 02:23 PM
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#11
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The rubber man Group: Members Posts: 12,736 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
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100lb is the way to go. We have a 140progressive160 if you are driving more agressive, but if you do that, Bilstiens are the way to go.
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