911 SC engine - Euro spec

[Learjet]

Hi

Have just bought your book! Just the very best Porsche book I have bought - and I have a a lot!

Looking at your suggestions for engine modifications for the 3 liter engine (carbs, S cams etc) I just wonder if the suggestions are based on a US spec engine or if the same applies to a Euro spec engine. Compression?
What kind of effect can I expect after these modifications?
I have a 204hk engine.

Rgds
JT
Norway

[Wayne 962]

Thanks for the feedback!

The performance recommendations do apply to either the USA spec or Euro spec engines. In general, the following apply:

- Upgrade exhaust (back date) for about 15 or so more HP
- Higher compression will help across the board, however, the Euro models in general already have higher compression
- 964 cams will help too. Off the top of my head, I think that the USA and Euro cams were exactly the same (don't quote me)
- If you can ditch the CIS and go to some type of engine management system, that will help with emissions, and will also gain you a bunch more HP and fuel efficiency (big bucks though).

-Wayne