LSD Experience
#1
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My 2011 GTS with PDK has the P17 option (sport suspension and mechanical rear differential lock). I can really notice the rear diff lock under hard acceleration and when I take a corner aggressively. I really like the feel of it. My question is does the lsd wear out quickly? I think it uses two clutches in the diff to control the wheel spin. I was hoping to hear from some of you that track the car regarding the life of the lsd. I also have a 993 with lsd and the lsd has long since stopped working. I am told this is common on the 993 diff and I am wondering about folks experience with the "newer" diff.
#2
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LSD usually takes 4-6 hours to totally wear out. Trips may vary depending on body size and weight.
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#5
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#6
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Haha - ok everyone has had their chance at the obvious. Now anyone have real experience with limited slip differential in their .2 997?
#7
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I'm also sporting a 2011 GTS with PDK and P17. I've understood that the LSD these cars come with is not robust, at all. I don't have verifiable data though, just posts I've read.
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#9
Three Wheelin'
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^^^^Thats about the lifetime of the OE units in these cars that I've read.
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#11
Three Wheelin'
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One thing that kills Lim Slip Diffs is the gobs of traction from wide tires and a rear engine.
Because of all the rear-end grip, if the tires aren't slipping, the LSD is.
Add in plenty of power and something has to give.
.
Because of all the rear-end grip, if the tires aren't slipping, the LSD is.
Add in plenty of power and something has to give.
.
#12
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The OEM and aftermarket diffs for MT 997.2s are not compatible with PDK unfortunately. Plus the two OEM PDK diffs (open and locking) are different dimensionally and have different covers so when Guard Transmission and BGB Motorsport set out to develop a PDK LSD, they discovered they'd have to make two: one for the open diff PDKs and one for the LSD equipped PDKs.
They did and they have been available for a couple years now. OS Giken also released one. Their website says it is for the non - factory LSD (open) diff only.
I put the Guard PDK diff in my C2S last summer and it made a huge difference - not just when accelerating out of tight corners but also under hard braking. The 2012 GTS I bought recently must be the only one in the US without the factory locking diff option so I couldn't reuse the one in my 09. I found an open diff flavor Guard LSD on RL and it has been installed in the GTS which will be at Sebring this weekend for our first event together. Can't wait!
Hope this helps.
Last edited by Cloudspin; 07-13-2016 at 09:04 PM. Reason: Clarify OS Giken option
#14
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I put the Guard PDK diff in my C2S last summer and it made a huge difference - not just when accelerating out of tight corners but also under hard braking. The 2012 GTS I bought recently must be the only one in the US without the factory locking diff option so I couldn't reuse the one in my 09. I found an open diff flavor Guard LSD on RL and it has been installed in the GTS which will be at Sebring this weekend for our first event together. Can't wait!
Hope this helps.
Hope this helps.