19 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHLimited Slip Differential Options?
Leading reported evidence
Use torsen's (in my s2000's) and been quite happy
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 · Original poster
I've used Torsen's (in my S2000's) and been quite happy.
Leading evidence: 'Use torsen's (in my s2000's) and been quite happy' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Use diff' (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.
0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
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.
19 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: 20261027T011819Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I've had my 996 now for about a month and the only thing I am truely dissapointed about is that it does not have a limited slip differential (LSD). PSM does not come close to making up for it. When trying to put powerdown in a corner and the brakes come on it is not a good feeling. I would rather modulate my traction myself with the gas pedal than have the computer step in and do it with the brakes.
What are my options? I prefer to low maintainance with a gear type LSD instead of a clutch type. I've used Torsen's (in my S2000's) and been quite happy. I see that Quaife makes one for the 996. What sort of LSD was offered in the 1999 Carrera? Should I look for one to pull out of a wrecked car? Order the part from Porsche? Part from a Turbo, GT3?
How will the LSD interact with the PSM?
How hard is the install?
Any advise would be great.
Thanks,
Andy
Oh, and Happy New Year!
Nope the PSM programming was not changed. Here is exactly what Porsche say about the LSD of the 40th straight out of the differences manual.
Ciao,
Adrian.
It would be my guess that if you're looking to a mechanical LSD for better wintertime adverse, slippery, roadbed performance then the PSM will almost always over-ride even the 40th anniversary version. But if tracking is your reason go for it...
Excepting a low traction surface, with the engine in the rear and a good set of tires has anyone ever had the 996's "virtual" LSD function of PSM activate?
Not me..
My 1999 car has the locking differential (220 code) as well as the computerized "active brake differential" code 224, and the "traction control system" code 222. I've tried to break it loose several times and I can say that even the old 1999 technology really works.
Turn it off. You'll feel the diff. The traction control system works fairly well on the 99's with LSD (I have the same package). They will keep you pretty far from the edge. I did find the system much more seamless and less intrusive than my BMW.
Interestingly enough, it does make a huge difference when off as you can go quite a bit quicker (on an autocross course). And use the diff to your advantage.
Pete
What I know so far...
Dealer I talked to wouldn't give me a part number.
They quoted me $5505 for the locking diff and 9 hours of labor ~$1,395.
Sounds awefully high to me. They told me that until recently Porsche would supply no part numbers and that it was just recently that they trained the mechanics to work on the 6-speed.
Pretty expensive for a gear driven LSD. I'll keep digging.
Is that the diff or the whole transmission? If you have a good relationship with your Porsche dealer's parts department, you can get a Porsche reman transmission for that.
Second quote from Sunset: "4683.00 and a month from Germany for that. Plus shipping out to you, thanks."
Looks like a pretty expensive way to go. A whole new tranmission with the LSD is $11,595!
Thrid party? Quaife, Torsen?
Quaife sucks as it provides no help in braking stability, go with a guard 40/60 lsd. Note - porsche GT-3 come with 40/65. It will cost about $2,700 for parts and $1K to install
It's funny...
Just this afternoon, an acquaintence of mine was getting frustrated with his car's performance on the track and discussed this very issue with Loren Beggs at 911 design. Since you're in SoCal, you should give him a call. He's EXTREMELY knowledgable and can probably solve your problem at a reasnable cost.
[phone removed]
www.nine11design.com
This is a source reference. Confirm exact model applicability in the original material.
