Has anyone explored the feasibility of exchanging a 2.7 Cayman engine for a 2.9 Gen II Cayman engine. Since they both are non-DFI and appear to share the same electronics, it would seem more feasible than with the DFI engine. If it is feasible, it would seem to be an attractive upgrade path for a high mileage 2.7 Gen I Cayman. A penny for your thoughts.
Discussion summary
YOUR RESEARCH2.7 Engine interchange w/2.9?
1 matching discussions were examined; no attributable action/outcome evidence was detected. No consensus or repair conclusion is claimed.
Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.
Read captured repliesInsufficient extracted evidence does not mean there is no answer in the original discussions.
1 matching discussions · 6 captured posts examined · 1 partial discussions
Coverage and how to read this overview
Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.
6 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
- Planet-9: 1 discussions
0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.
0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261027T022239Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I would like to know too.
I can't believe it makes financial sense to swap a 2.7 for a 2.9. Just buy a different car, and this time get an S. For one thing, the 2.9 isn't all that fast. Yes, it's faster than a 2.7, but it's not an "OMG" difference. Once you've spent all of that money I think you'll be disappointed.
If you're going to swap a motor, it doesn't make sense to go to a 2.9. Too much cost for too little gain. It would cost about the same to install a 3.8.
+1 The only reason I could see for swapping the 2.7 for 2.9, would be if you blew your engine somehow (out of warranty coverage) and you could find a 2.9 replacement for a decent price.
It would all depend upon your meaning of "upgrade" path. The 2.9 is far better in reliability aganst any IMS engine. On paper anyway, time and miles will prove that statement.
This is a source reference. Confirm exact model applicability in the original material.
