fullymatted.
Back to search
Rennlist

GT3 or turbo engine in Carrera 4

Add to repair workspace
Open repair workspace
Original source
17 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHGT3 or turbo engine in Carrera 4

Leading reported evidence

Install (by fvd)

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

This will give you the same 381hp as the mk2 GT3, and will cost you $26,310 installed (by FVD).

GT3 or turbo engine in Carrera 4
Read full discussion summary

Leading evidence: 'Install (by fvd)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'best bang' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Install (by fvd)' (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.

Read captured replies

1 matching discussions · 17 captured posts examined · 0 partial discussions

Compare 3 other evidence results

Use /new)

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

you are looking at anything between US$ 30-40K (used/new) and that's just the engine!

GT3 or turbo engine in Carrera 4

best bang

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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 suspect a cause
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.

Suspected cause

Selling the C4 and upgrading to a turbo, is probably the best bang for your upgrade dollar...

GT3 or turbo engine in Carrera 4

Set me strait

Suggestion or failed attempt

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 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

Thanks for setting me strait.

GT3 or turbo engine in Carrera 4
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.

Install (by fvd)

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

This will give you the same 381hp as the mk2 GT3, and will cost you $26,310 installed (by FVD).

GT3 or turbo engine in Carrera 4

Set me strait

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

Thanks for setting me strait.

GT3 or turbo engine in Carrera 4

Use /new)

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

you are looking at anything between US$ 30-40K (used/new) and that's just the engine!

GT3 or turbo engine in Carrera 4
Reported and suspected causes (1)

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

best bang

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
Read evidence and context
Discussions that suspect a cause
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.

Suspected cause

Selling the C4 and upgrading to a turbo, is probably the best bang for your upgrade dollar...

GT3 or turbo engine in Carrera 4
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.

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

  • Rennlist: 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: 20261026T200546Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

Has anyone done this before? What needs to be done? best regards Marius

POST 3Original post

Too much to consider. Do you know how much a GT3 engine costs? Have a beer , sit down and read on...................................................................... ........................................................................ ................. you are looking at anything between US$ 30-40K (used/new) and that's just the engine! Ciao, J.

POST 4Original post

Agreed. You'll spend a fortune doing that transplant and have an "odd" car that will never get you that money back on resale. Sell the C4 and buy a GT3 or a TT if you want that power. -Charles

POST 5Original post

the only way to be feasable is if you have an older car with a blown motor and can get a wrecked car t oget al the parts from for cheap other wise its not worth it

POST 6Original post

Yeah what about his motor just grenaded (out of warranty) and instead of paying 10k for the same 300 hp motor he pays 20-25k for a GT3 motor. I know I would consider it. - god please don't let this happen to me.

POST 7Original post

Well for starters, he ISN'T getting a GT3 motor for 20K. Further, it is not a plug-n-play motor with a base 996. This would require serious $$$ to convert and it would be smarter to just buy a GT3 and have iot done right.

POST 8Original post

even if you found a gt3 motor for 20k you will need a body harness 1000 dme 3500 -5000 trans 6000 flywheel clutch 3000 clucth slave and hydrolic system 1500 someone to make it work 5000-7000

POST 9Original post

All true. The closest to "plug and play" would be to supercharge a standard engine.

POST 10Original post

Well I said I would consider it and I did. Now I will rule it out and say that I would not do it. Thanks for setting me strait. God- please still dont let this happen to me!

POST 11Original post

FWIW... I know of a recent GT3 motor replacement covered by Porsche and the charge themselves sticker was 50k.

POST 12Original post

I agree. Sell your car and buy a GT3 or Turbo. You will come out way ahead ($$$$) of trying to do a conversion.

POST 13Original post

While we're on the topic, imagine blowing a $30K engine after the conversion!! Whew. Thank God Bob didn't have a GT3 engine in his car. Would have spammed the whole internet! Actually, on a side note, why not sell the C4 and then buy a GT3 as others recommended? For some reason, I respect the GT3 more than the Turbo, maybe due to its pure racing lineage ... pure engineering vs a blower strapped on . If you're a porsche motorhead, how can you not like that ?!

POST 14Original post

One option would be to install a 3.8 997S Engine with X51. This will give you the same 381hp as the mk2 GT3, and will cost you $26,310 installed (by FVD). Of course it is still not a real GT3 engine, but perhaps a realistic alternative to supercharging. For a mk2 GT3 you are probably looking at ~$85,000, so the math is still questionable. However, 996 turbos can be had from the mid $60k's, with some really nice cars in the $70k's. Selling the C4 and upgrading to a turbo, is probably the best bang for your upgrade dollar... IMHO anyway.

POST 15Original post

I a 996 or a 987/997? That price is for the 987 engine swap. For a 996, if they will do it (Ruf won't), expect the price to go up due to the custom wiring harness that will be constructed. Bottom line is why would you want to do this anyways? For $10-20K over the cost of a C4S you could have a turbo of the same year. Putting a GT3 is a 276 lb heavier chassis is just insane. It will NEVER be as fast as a regular GT3. +1 for LVDell: sell the C4 and buy another car instead.

POST 16Original post

From FVD's website... 996 3.8L 997S Engine Conversion (Includes Installation!) (355HP) FVD 996 100 997 $24,310 FVD is proud to introduce a way for 996 owners to get the power of a 997S without buying a new car! This 997S 3.8L engine conversion yields 355HP which is identical to the new 997S and can be brought up to 382HP with optional FVD tuning parts! Kit Includes: 997S 3.8L Motor, FVD Motronic Programing, Installation Kit, and "In House" Labor. Optional Equiptment: FVD Sport Headers, FVD Sport Catalytics, FVD Mufflers, FVD Level 1/2 ECU Tuning, Upgraded Clutch, Lightweight Flywheel, Big Brake Kits, And More! NOTE: This kit is for "In House" installation ONLY Upgrade X51 engine (Raises power output to 381 HP) FVD 996 100 X51 $2,000 Uhhhh... yeah. If you read the rest of my post, you would have seen that I said the same thing.

POST 17Original post

Firewall needs to be reworked for oil tank clearence as well. And probablly dozens of other small issues not mentioned here.

This is a source reference. Confirm exact model applicability in the original material.