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Lightweight Flywheels

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13 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHLightweight Flywheels

Reported or suspected cause

993

Suggestion or failed attempt

No successful repair reported for this finding.

0
Identified cause
1
Suspected cause
0
Reported fixes
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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 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

The turbo, the GT3, the GT2 and probably the 993 which are derivative of the GT1 racing block are 9 bolt and thus take the different flywheel.

Lightweight Flywheels
Frequently discussed work

Use gt3 single mass flywheel

No successful repair reported for this finding.

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0
Unsuccessful attempts
1
Discussions
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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

Might be able to use the GT3 single mass flywheel on earlier models.(9 bolts)

Lightweight Flywheels
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Leading evidence: '993' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is '993' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Use gt3 single mass flywheel' (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 · 13 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Use gt3 single mass flywheel

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

Might be able to use the GT3 single mass flywheel on earlier models.(9 bolts)

Lightweight Flywheels

Use same flywheel....but the lightweight ones

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

These guys got the wrong one from Fidanza...seems they dont make one for a 3.4L.....So its odd if all 996's use the same flywheel....but the lightweight ones from Fidanza dont fit a 3.4L....

Lightweight Flywheels
Frequently discussed actions (2)

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

Use gt3 single mass flywheel

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

Might be able to use the GT3 single mass flywheel on earlier models.(9 bolts)

Lightweight Flywheels

Use same flywheel....but the lightweight ones

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

These guys got the wrong one from Fidanza...seems they dont make one for a 3.4L.....So its odd if all 996's use the same flywheel....but the lightweight ones from Fidanza dont fit a 3.4L....

Lightweight Flywheels
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.

993

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

The turbo, the GT3, the GT2 and probably the 993 which are derivative of the GT1 racing block are 9 bolt and thus take the different flywheel.

Lightweight Flywheels
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.

13 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: 20261026T112012Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I was looking into lightweight flywheels. Fidanza is available for ~400, AASCO is around ~800... Fidanza only lists 02+ applications. The question is, if the 99-01 flywheels are different why is the OEM part the same? Would a 02+ Fidanza fit a 00 996? Why is the OEM flywheel part the same for 99-05? How does it bolt up to both types of engines? http://www.pelicanparts.com/catalog/...Tclutc_pg3.htm Also, Aasco lists the same flywheel for 99-04.... http://www.amazon.com/Aasco-10-6411-...3194521&sr=1-5

POST 2Original post

is it worth it? i tried soing a search for these guys... not too much success......

POST 3Original post

Maybe you should try GMG....they make a flywheel and clutch combo thats lighter and they claim NO chatter like the other lightweight flywheels..... http://www.gmgracing.com/porsche_drivetrain.shtml they list different flywheels for teh 3.4L and 3.6L as ther ARE different and are not compatible. One bolts with 8 bolts and one bolts with 9 bolts.

POST 4 / ORIGINAL POSTEROriginal post

Can anyone explain the reason the stock OEM flywheel seems to be the same over all model years?

POST 5Original post

Might be able to use the GT3 single mass flywheel on earlier models.(9 bolts)

POST 6Original post

Its not...you have the wrong part numbers. OEM is different for 3.4L and 3.6L.

POST 7Original post

The 3.4 and 3.6 have the same number of flywheel bolts (8) and is the same part (996.114.012.03) it is only the GT3 motors that use a different number of flywheel bolts (9) and a different flywheel (996.114.012.50, dual mass unit, the single mass unit is a 964 part).

POST 8Original post

I think the 993's have 9 bolts. Also GT2, turbo and GT3.

POST 9Original post

Didnt someone here order a lightweight from Fidanza and it was the wrong one? https://rennlist.com/forums/showthre...light=flywheel https://rennlist.com/forums/showthre...light=flywheel These guys got the wrong one from Fidanza...seems they dont make one for a 3.4L.....So its odd if all 996's use the same flywheel....but the lightweight ones from Fidanza dont fit a 3.4L....

POST 10Original post

The 3.6L one from Fidanza is for a turbo, not the M96 motor. This is something Fidanza doesn't advertise. According to the Porsche PET the flywheels are the same for MY99-04. Hope this helps. Tony

POST 11 / ORIGINAL POSTEROriginal post

So the OEM flywheel IS the same across all model years... What's the deal then? how does that work?

POST 12Original post

^ 300zxtt...the M96 motors (3.4L, 3.6L in the carrera series) are all 8 bolt flywheels. bottomline. The turbo, the GT3, the GT2 and probably the 993 which are derivative of the GT1 racing block are 9 bolt and thus take the different flywheel. i'm assuming many companies (especially import ones like fidanza) just goof up on advertising because they think the 911 turbo is just a 996 with some uber made tyte greddy turbo kit slapped on y0 and havn't done the adequate research into the model range

POST 13Original post

996s are all the same....... turbos are the same as gt2 gt3 993 ect

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