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BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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YOUR RESEARCHBOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Use 911 transmission

Suggestion or failed attempt

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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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

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Suggestion · Original poster
It is necessary to use 911 transmission because in VW engine is behind the rear wheel location.
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BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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Leading evidence: 'Use 911 transmission' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use 911 transmission' (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.

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Compare 2 other evidence results

Use 911 transmission ecu since it is programmed

Suggestion or failed attempt

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
Without doing any research, my gut says use the 911 transmission ECU since it is programmed for the transmission that you plan to use.
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BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use should it be

Suggestion or failed attempt

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 · Original poster
We don't know yet which gearbox ECU use should it be from 911 or Boxster S?
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BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Frequently discussed actions (3)

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

Use 911 transmission

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 · Original poster
It is necessary to use 911 transmission because in VW engine is behind the rear wheel location.
Original post Read captured discussion
BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use 911 transmission ecu since it is programmed

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
Without doing any research, my gut says use the 911 transmission ECU since it is programmed for the transmission that you plan to use.
Original post Read captured discussion
BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Use should it be

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 · Original poster
We don't know yet which gearbox ECU use should it be from 911 or Boxster S?
Original post Read captured discussion
BOXSTER S engine and 911 tiptronic swap to VW T3 vanagon - 986 Forum - The Community for Porsche Boxster & Cayman Owners

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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.

4 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

986Forum: 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: 20261026T172408Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Hi I looking for advice and ideas about my project. I want to put PORSCHE 986 BOXSTER S engine and 911 996 Carrera 2 tiptronic gearbox to my VW T3 Vanagon. It is necessary to use 911 transmission because in VW engine is behind the rear wheel location. I bought 2002 Boxster S with tiptronic after accident and Porsche Carrera 2 tiptronic gearbox from 2000 year to do this project. At now all project is waiting in garage so I decide to find some information on this forum. After chat with few people we are worry about Porsche tiptronic ECU. We don't know yet which gearbox ECU use should it be from 911 or Boxster S? If you think can be others problems feel free to tell about this here. All yours advice are welcome and I will be grateful for your interest.

POST 2Original post

I thought the smart people do the Subaru EJ25 conversion ? Sell the Boxster S stuff to finance it? Lots on You tube and elsewhere for the EJ25 conversion

POST 3Original post

Quotes source post: 511099

Without doing any research, my gut says use the 911 transmission ECU since it is programmed for the transmission that you plan to use. My gut also says that you should look at all of the electrical signals (inputs/outputs) between the Boxster engine ECU and the 996 transmission controller to make sure that all of the signals match up like they do in their respective cars. There is a chance that the Boxster engine has some different signals than the 996 engine to/from the transmission. If not, then its plug and play. If so, you will have to figure out how to replicate the missing signals so it all works when you're done.

POST 4Original post

I have nothing to add to this, but the other day I was walking by a Vanagon, and noticed the huge front rotors and large calipers. My interest was instantly piqued, so I gave the bus a once-over. Turns out it has a Chevy LS 5.3 liter V8! The exhaust was pretty big, so I looked underneath it, and sure enough, there was a V8 crammed in there! I bet it really perked that thing up.

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