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Riggard
Joined: 16 Feb 2021
Posts: 63
Location: Heemskerk, Netherlands
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 Posted: Thu Oct 21, 2021 5:07 am Post subject: Front spring diameter? |
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Hi, I got a '81 924, and a lot of spare parts with it. It came with from springs 12mm in diameter, but I also got some spares that are 12,5mm in diameter.
Can anyone explain me the difference? e.g. were the thicker ones used in a newer model year? or maybe another model?
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Fifty50Plus
Joined: 28 Feb 2008
Posts: 1354
Location: Washington DC area
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| Posted: Fri Oct 22, 2021 6:12 am Post subject: |
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You didn't say if they were factory springs or aftermarket. The 12.5 mm springs have a higher spring rate than the 12 mm ones. Are they the same height?
_________________
1979 924 NA race car
1982 924 NA race car - Sold
1982 924 Turbo almost a PoS
1981 924 Turbo a real PoS, new engine
1982 924 Turbo nice body, blown engine
1972 911 E race car - going to Vintage
Various 944s to become IT-S race car |
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Riggard
Joined: 16 Feb 2021
Posts: 63
Location: Heemskerk, Netherlands
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| Posted: Fri Oct 22, 2021 6:40 am Post subject: |
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| Fifty50Plus wrote: | | You didn't say if they were factory springs or aftermarket. The 12.5 mm springs have a higher spring rate than the 12 mm ones. Are they the same height? |
Same height, not sure if they're factory or not, appear to be factory, but can't tell for 100% |
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Fifty50Plus
Joined: 28 Feb 2008
Posts: 1354
Location: Washington DC area
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| Posted: Fri Oct 22, 2021 8:03 am Post subject: |
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It's probably not worth the effort to replace the existing front 12 mm springs with the others. Did you get any sway bars with the car? Those will change the handling more that just swapping front springs.
_________________
1979 924 NA race car
1982 924 NA race car - Sold
1982 924 Turbo almost a PoS
1981 924 Turbo a real PoS, new engine
1982 924 Turbo nice body, blown engine
1972 911 E race car - going to Vintage
Various 944s to become IT-S race car |
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Riggard
Joined: 16 Feb 2021
Posts: 63
Location: Heemskerk, Netherlands
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| Posted: Sat Oct 23, 2021 3:49 am Post subject: |
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| Fifty50Plus wrote: | | It's probably not worth the effort to replace the existing front 12 mm springs with the others. Did you get any sway bars with the car? Those will change the handling more that just swapping front springs. |
I'm replacing the dampers, so its 0 effort to replace the springs.
Just a bit concerned that it may raise the front (same height, stronger springs = less sag) |
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Fifty50Plus
Joined: 28 Feb 2008
Posts: 1354
Location: Washington DC area
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| Posted: Sat Oct 23, 2021 10:11 am Post subject: |
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True that.
_________________
1979 924 NA race car
1982 924 NA race car - Sold
1982 924 Turbo almost a PoS
1981 924 Turbo a real PoS, new engine
1982 924 Turbo nice body, blown engine
1972 911 E race car - going to Vintage
Various 944s to become IT-S race car |
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gegge
Joined: 27 Jul 2007
Posts: 1124
Location: Sweden
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| Posted: Sun Oct 24, 2021 12:28 am Post subject: |
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Stock springs were black with 1, 2 or 3 green or blue markings. The CGT springs are shorter and stiffer and got red marknings. M030 got red as well. Belive first year got them too.
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Carl Fredrik Torkildsen
924 turbo -81 Carrera GT RESTOMOD
924 turbo -80 Dolomite De Luxe
924 -85 DP kit, BBS RS, M030 and tuned engine
924s -86 Black on black turbo with Fuchs |
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