20 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHFinally picking up my 996 LS3
Leading reported evidence
Replace stock bearing
Suggestion or failed attempt
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that contain suggestions
1
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Suggestion · Original poster
Replacing the stock bearing with a stronger bearing or unsealed bearing has been tried and it doesn't fix the problem.
Leading evidence: 'Replace stock bearing' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace stock bearing' (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.
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.
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Suggestion
Not sure if there were any major updates to the 997 tranny besides gearing but Bisi is using the 997 manual gearbox on his 770hp turbocharged m96 powerplant if that says anything.
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
Not sure if there were any major updates to the 997 tranny besides gearing but Bisi is using the 997 manual gearbox on his 770hp turbocharged m96 powerplant if that says anything.
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.
20 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: 20261026T135432Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have been lurking on rennlist for over a year, thought I'd finally join the conversations.
Next week I will drive from Calgary to LA, sell my 2002 Boxster S, pick up my 1999 996 C4 with a 3 year old LS3, and now with a rebuilt 996TT transmission+new clutch, and trans to LS3 adapter. It has been a sordid tale with deception aplenty. Thanks to nine11designs, I am looking forward to a working hybrid car.
Robin.
Dude, I am in Lethbridge but flying out of town Sept 3 until Sept 20th. Do me a favor and drop me a line if you are coming through town outside those dates. I would absolutely LOVE to take a look at it.
Hybrid vehicle From Wikipedia, the free encyclopedia.
A hybrid vehicle uses two or more distinct types of power, such as internal combustion engine+electric motor.[
As a 996/LS3 owner with at least 10k miles on mine, I would like some info on your Turbo Tranny, as mine runs about 2800rpm at 70mph and I'm in the process of researching LSD and tranny options. Let me know if you need any advise/info. Check out my build thread at
http://ls1tech.com/forums/conversion...version-9.html
@Fierolfy I spent about an hour on your build thread. Fantastic build. The only thing I questioned was calling yourself a redneck when you are laying down that kind of complicated work and problem solving. Regarding the trans, I bought a rebuilt 996TT. I will do some RPM/speed measurements at 2,3,4,5krpm. I will also measure top speed in each gear and post them here.
The real issue about these conversions is that the transmission in the 996 C2 and C4 is fundamentally flawed. With any system, the weak point defines the limit of the system. The 996 C2 and C4 transmissions are the weak point in the drive train, with the pinion bearing being the weak link. Putting higher torque in front of the stock trans will lead to regular failures. Replacing the stock bearing with a stronger bearing or unsealed bearing has been tried and it doesn't fix the problem. it is a design flaw by porsche much like the IMS bearing issue in the engine. The 996TT trans is a very different design and can handle double the power and torque of the 996 C2/C4 trans.
So how does driving the porsche compare to an A10? Seems like you already piloted the ultimate canyon carver
I disagree that the transmission is flawed. It is actual pretty well designed and performs very well up to about 350hp. The only issue I know of is the 2nd gear pop out but I haven't experienced it on either of my 17 year old transmissions.
Ok, just had to say my piece, carry on. We still want to hear the story of how you got it and the conversion process.
Not sure if there were any major updates to the 997 tranny besides gearing but Bisi is using the 997 manual gearbox on his 770hp turbocharged m96 powerplant if that says anything.
I find guys that break trannies most of the time are usually the guys that can't drive or don't have enough finesse.
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