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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 lengt ...

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 ...

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 i ...

If you switch to solid buckets, you will save about 25grs, resulting in an extra 500 rpms potential.

A tangent to valve springs, if anyone know.
Why do we have a rotator (name??) under the exhaust valves?
Is it really needed and why?
I haven't seen that in other engines and they are NLA too.

...

Hi folks,

I have been working for some time on the replacement of valve springs.
Planning for direct replacement springs to fit original retainers. They are made of dual (cylindrical) springs with ...

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Hello,

I have made new valves, tappets for NA engines.
Check my website classic-line.eu
I can also supply other parts on request.

Corentin

Hi folks, you can find the link below to place an order:
https://classic-line.eu/product/porsche-924-931-tappet-follower-046109311-pcg10931100/
Regards
Corentin

I may be down for a set. Would there be any problem running these with an old cam? I know on some engines, you're either taking a risk or guaranteeing failure if you put new tappets on an old cam, or ...

My tappets have some minor surgace scratches and 1 or 2 have scratches that can be felt with finger ??
What are the tolerance of tappets ?

There is no tolerence. If the tappets get visually worn a ...

I have paused the topic for a couple of months, but it is now confirmed

Here are the products.
Available from beginning of autumn approximately.

https://i.postimg.cc/9zcJn4xS/1000010581.jpgh ...

Hello everyone,

I'm collecting any interest for a new production of piston rings for 931 (924 Turbo) and 937 (Carrera GT).
- 90€ the set of 4 cyl for the 15 first sets
- 115€ then

All size ...

The 4 groups you are talking about concerns the adjustment screw not the tappet itself. These will not be sold with the tappet (as in the Porsche catalog).

Thank you very much for your help