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Planet-9

Different engine swap

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32 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHDifferent engine swap

Leading reported evidence

Replace 2gr into my mr2… family ties

Performed · outcome unconfirmed

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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Reminds me of when I swapped a 2GR into my MR2… family ties

Different engine swap
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Leading evidence: 'Replace 2gr into my mr2… family ties' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 2gr into my mr2… family ties' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

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1 matching discussions · 32 captured posts examined · 1 partial discussions

Compare 3 other evidence results

Run audi 2.7t in mine

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I'm running an Audi 2.7t in mine.

Different engine swap

Use pair of water

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I'm using a pair of water to air charge coolers from a V12 Mercedes S600.

Different engine swap

Run strong

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes
0
Unsuccessful attempts
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Discussions
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Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

manual transmission that is still running strong but as I said I want a project.

Different engine swap
Frequently discussed actions (4)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace 2gr into my mr2… family ties

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

Reminds me of when I swapped a 2GR into my MR2… family ties

Different engine swap

Run audi 2.7t in mine

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I'm running an Audi 2.7t in mine.

Different engine swap

Run strong

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that contain suggestions
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion

manual transmission that is still running strong but as I said I want a project.

Different engine swap

Use pair of water

No successful repair reported for this finding.

0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
Discussions that performed work without a confirmed outcome
1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Performed · outcome unconfirmed

I'm using a pair of water to air charge coolers from a V12 Mercedes S600.

Different engine swap
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.

32 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: 20261026T190023Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

I have been looking at options for fun project. I have a high mileage (140,000 miles) 2006 Cayman S manual transmission that is still running strong but as I said I want a project. Looking at the current engine swap ideas: LS3, Audi V8, Honda K series, I am just not feeling any of them. The LS: I don't want to cut the firewall and lessen the seat travel and therefor leg room. The Honda: I HATE turbo charged engines for light autocross / DE and i have been there done that with the Honda's. The Audi V8 is quickly limited as to power with little aftermarket support. I did come across an idea I have not seen done and not sure if it can be done (reasonably). The Audi 3.0T engine. Good: V-6 that looks short overall Supercharged (some people do and don't like this) Can easily and reliably make 450 hp and 400 torque with a smooth curve Lots of donor cars available I think it will bolt to Cayman transmission. Lots of aftermarket support Bad: might be Tall Supercharged (some people do and don't like this) Wiring will probably be the tough point but I enjoy a challenge. Haven't heard of anyone doing this combination so there will be lots of trail and error. Not to many donors come with manual transmissions, so extra computer programming to have done. So does anyone know more about this or have you looked into it? II am willing to try something totally new but looking for any info that is out there. RH

POST 2Original post

This guy started an Audi V8 swap 5 years ago. May get some info here. Cayman S - Audi 4.2 Liter V8 in a Cayman S

POST 3Original post

You mentioned it but I will chime in: I think the height will be a big problem. The engine space for the Cayman is pretty tight. You may also have an issue with axle angles if the engine needs to be moved around to fit.

POST 4Original post

Poorsche x, I have read through that entire thread. Lots of good info, but he still has not finished the project. Racergreg, I am hoping to keep the transmission in the same location. Raising the engine is only a concern to cutting the structural items of the car and moving the center of gravity up. Unfortunately getting accurate dimensions of the 3.0t has not worked out as of yet. Anyone have good measurements of an Audi 3.0t?

POST 5Original post

I'm running an Audi 2.7t in mine. 405bhp, 475ft/lb

POST 6Original post

Escy - Interesting! How have you gone about installing the intercoolers? Experiencing heat soak? Care to share additional photos from the underside?

POST 7Original post

I'm using a pair of water to air charge coolers from a V12 Mercedes S600. No issues with heat soak but it's taken loads of development to get it working well.

POST 8Original post

So your looking for a different engine, just because? The challenge? I stuck a different motor in an MR2 (2GR)...these swaps aren’t always a fun time... personally I’d just get another F6... cool swaps above^

POST 9Original post

Looking for something different, and I love a challenge. Second a M96 is very limited in what you can safely get out of it HP wise, something that can be easily upgraded and still be reliable would be great fun in a platform as capable the Cayman .

POST 10Original post

how about an ev conversion? You’d be one of the first to do a cayman , it has monster torque and power, and it will fit, and lots of opportunity for future upgrades as battery tech improves.

POST 11Original post

The EV route might be cool. The biggest problem I have with EV cars, say goodbye to your 2900lb car. If you want bigger power it’ll probably weigh in the neighborhood of 3500-4000lbs. The characteristics would be compromised a lot.... Porsche cars have a special place for me, so if I were to perform such a task I’d get another MR2. Seriously one of the great chassis’s ever... I’ve had one for a long time.. better than my CS or GT3 ?.... hell no, but for the money, they can take u a long way

POST 12Original post

Dare to be different? Small diesel? Diesel-electric hybrid ev? Rotary? Ford Coyote? Cmon its just money!

POST 13Original post

I have a LS3 in my Cayman , 445whp/460wtq. It's a lot of work to LS a Cayman . I kept the OEM waterpump, most folks go electric to make the swap easier. Plan on $20-25k to do it right.

POST 14Original post

Josh, I have already been talking with you about the suspension I looked at an LS but feel I want something different. Being that I am thinking mainly for track toy and long back road adventures, the EV and Diesel options are out. I have the 20-25k budget for the engine swap but still don't know what I want. True the LS has insane potential but everyone has done as LS swap (even if there are not that many Caymans ) Having an engine that matches our factory rev range is more what I am after.

POST 15Original post

I try to talk everyone out of LS swaps. Do an Audi RS5 4.2; 444bhp and 8250RPM

POST 16Original post

Has anyone considered a Honda or Toyota 90° V6? (J32 / J35 or 2GR-FE) Easily >300whp and mod friendly.

POST 17Original post

Honda motors are probably too tall, although some guy with a k swap 997 is doing a honda in a cayman (or trying) as posted above I dropped a 2GR in an MR2… great motor for that car.. the benefits of a flat 6 is the fact it’s a flat 6. Weight down low, etc. I’m not a swap fan in any Porsche … that’s just me

POST 18Original post

I've been thinking about this swap as well, mainly because it's a cool engine it sounds pretty good and it's very close to the weight of the 3.4 stock engine.

POST 19Original post

How about a GM 4.2L V6? It's all aluminum, cheap and it's starting to get more aftermarket support. Basically an LS minus 2 cylinders.

POST 20Original post

I like your TT/ M96 motor better. By the time you fit a V6/8 would could do it right and stay with flat 6 like it should be..

POST 22Original post

I know that… but didn’t you drop a 996TT motor in yours??

POST 24Original post

Oh chit, that’s right… mine is a built 3.8..

POST 25Original post

What about a subaru engine? 2.5 4cyl or even a 3.6 six? Anyone heard of doing this?

POST 26Original post

3.6’s have been done.. as for a Subaru? I vote no… you’d be better off with 718 H4

POST 27Original post

Id like to know if a s85 bmw v10 engine would fit what do yall think?

POST 28Original post

No… besides those motors are maintenance nightmares

POST 29Original post

i want to put something fat in it though besides a ls

POST 31Original post

I just watched a video from a tuner called Renn-2.7. They have a kit that you can install an Audi 2.7T motor in a 911 . Those motors can be bought for a grand… anyway, interesting swap. At least it’s family. Reminds me of when I swapped a 2GR into my MR2… family ties

POST 32Original post

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