[sigchuck]

Originally Posted by sigchuck

Guys, thanks for all the replies and especially to those that have helped via email. In considering this project, I’m now leaning towards using more factory 930 components.

I was thinking of the following

- 78/79 factory 930 intake/fuel management system (sans rear pump in lieu of -044 pump up front);
- Injector blocks ported slightly to match my small port SC heads (34mm intake port on heads vs 32mm port on 930 intake, I think);
- Tial 46mm WG with .5 bar spring;
- Elimination of factory intercooler with routing of turbo discharge pipe directly to TB;
- Gravity drain on 3dlz turbo

Assuming there are no glaring problems, can you let me know where you think you might see issues? I would like to continue to drive the car fairly regularly, so anything related to cold start valve, TTS, etc.?

Could I eliminate the factory bypass duct in favor of an aftermarket BOV/bypass back to the turbo intake pipe? I have a very limited understanding of the factory bypass system, but it looks like there are a couple hoses and vacuum pods present. Are those solely related to the bypass system, or would I affect other parts of the CIS?

As always, thanks for your help and the wealth of knowledge.

And an additional follow-up question - Assuming the 930 intake/fuel system will work on the SC, will it noticeably (negatively) affect off-boost performance?

Thanks!