Can you powerkit a a 3.4 DFI engine?

[Mario149]

Just chatting with a mate about the Cayman GT4 and I mentioned that while I love the concept, it never truly appealed to me because of the engine. And that if it had a a tuned 3.4 making ~370+ bhp it'd be right up my street.

Which got me idly pondering about 3.4 litre 991.1s. Given that the 3.8 DFI lumps in the 997.2 and 991.1 cars are broadly similar to my knowledge, could you not possibly fit a 997.2 or 991.1 (lightly modified if necessary) powerkit to the 3.4 litre 991.1 to make it more enjoyable? According to this doc:

http://www.porscheengineering.com/filestore/downlo...

....the 997.2 and 991.1 powerkits include new intake, polished cylinder heads, exhaust and remap. With the 991.1 also including a different inlet cam.

Would be interested to know if the 3.8 powerkits for the DFI engines were fundamentally compatible with the 3.4 DFI engines (subject to say some different ECU tuning) since a lot of the parts are common.

[Mario149]

Thanks, I know 370bhp from the 3.4 is doable, have come across the ehresmann work before (have actually been in contact with him in the past), my musings were more on a technical/engineering level and specifically whether the 997.2 or 991.1 powerkits could be relatively easily adapted to the 3.4.

If it would be a reasonbably "off the shelf" solution, I'm wondering if Porsche ever considered going down the power kit route for any of the Caysters and if not why not. Was it only financial (cheaper to just stick a 3.8 in) or were there other reasons.

I'm just intrigued by what if scenarios Bit like I've always been curious about where we'd be if they been allowed to keep the air cooled engines, or if thinking about another marque, if Honda had ever built a straight 6 version of the F20C engine