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| Would you intend to buy new lightweight springs? |
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| Total Votes : 8 |
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Coco_Lev
Joined: 04 May 2020
Posts: 104
Location: France
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 Posted: Wed Oct 22, 2025 11:37 pm Post subject: |
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Hi folks,
To make a batch we need to order a certain volume, we can not only make few dozens of units. With only 5 pre orders from there (especially at this such soft price), I strongly fear that it will not be possible to make a batch. 
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morghen
Joined: 21 Jan 2005
Posts: 9084
Location: Romania
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| Posted: Thu Oct 23, 2025 4:38 pm Post subject: |
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You can count 6, a friend wants a set as well.
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Supercharger and EFI kits
https://www.the924.com |
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safe
Joined: 18 Mar 2017
Posts: 691
Location: Sweden
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| Posted: Thu Oct 23, 2025 4:42 pm Post subject: |
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I might take 2 sets...
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/Magnus, Stockholm Sweden
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Porsche 924 -79 NA, EFI and Turbo.
Porsche 931 -79
Porsche 911 -77, 3.2 Targa
Porsche 911 -69, 3.6, Coupe |
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Cedric
Joined: 27 Aug 2004
Posts: 2771
Location: Sweden
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| Posted: Thu Oct 23, 2025 7:51 pm Post subject: |
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How many sets do you need to kick off a first batch? It think it could take some time to get the word out, like through the UK OC and all the local communities, FB groups etc, its not easy to get the in touch with all 924 owners.
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1980 924 Turbo
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daniel
Joined: 18 Jun 2009
Posts: 685
Location: Sydney, Australia
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| Posted: Fri Oct 24, 2025 7:42 am Post subject: |
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Interested, What is your installed height and spring rate at that height?
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet |
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Coco_Lev
Joined: 04 May 2020
Posts: 104
Location: France
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| Posted: Fri Oct 24, 2025 3:48 pm Post subject: |
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| Cedric wrote: | | How many sets do you need to kick off a first batch? It think it could take some time to get the word out, like through the UK OC and all the local communities, FB groups etc, its not easy to get the in touch with all 924 owners. |
We need to secure 20-25 sets to start a such project.
I know that here this topic was being discussed many times, so I do expect to collect the majority of interest on the board.
I have secured 5 sets apart from that but the risk remains still high.
I expect the regular sales will be quite slow to be honest, most of the people are not that much interested to replace an existing component that visually looks in good condition, even if there are some reasons to replace it before it breaks.
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Coco_Lev
Joined: 04 May 2020
Posts: 104
Location: France
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| Posted: Fri Oct 24, 2025 4:16 pm Post subject: |
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| daniel wrote: | | Interested, What is your installed height and spring rate at that height? |
Installed height is not a spring characteristic, it’s a valve train characteristic. I mean it depends on valve stem length, and valve face + seats recess. It is generally measured without spring installed.
 [/img]
Installed force is expected to be about 85bs at 42,4mm installed height (original height).
Many fellows reported some softer values : there ave been plenty of springs made over the decades and many of them were designed to be softer than the original ones. Even the latest OE springs made are softer then the true originals. On top of that, heads can be worn (installed height increased and installed force decreased). Original spring material grade exhibit a certain sag that can decrease even more this theorical installed force. It can be measured after only 1000kms, and carries on with time.
If the installed height is too big, it’s recommended to insert shims below lower spring seats, to retrieve the correct spring force.
I hope I'm clear. 
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daniel
Joined: 18 Jun 2009
Posts: 685
Location: Sydney, Australia
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| Posted: Mon Oct 27, 2025 3:42 pm Post subject: |
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Installed height is the height of the spring as it is installed in the application. Would have thought it was clear that for a stock replacement spring we would be talking about the standard installed height.
| Quote: | | Installed force is expected to be about 85bs at 42,4mm installed height (original height). |
Thanks for the answer. This may be too soft for my application.
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Over the top of skyline, total brake failure.... hit the wall at over 200 kp/h at the dipper, so anyone who has to brake for the esses is a pussy.
1977.5 Race Car, CAMS Group S Spec
1989 944 Cabriolet |
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Sharino
Joined: 06 Nov 2025
Posts: 3
Location: Canada
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| Posted: Wed Dec 03, 2025 4:57 am Post subject: |
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I am in need of a set. If this doesnt go through, does supertech or anybody else make a spring for these engines? haven't been able to find much online.
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1980 924 Turbo
1985 928S
1988 944S |
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924 FAQ (Technical)
