esoteric question-Lsd codes?
#1
Track Day
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esoteric question-Lsd codes?
Have a question. Did a search and came up with "0". What is the difference between code 220 (locking differential) and P08 (limited slip differential). Both would function the same, right? (wrong?) Add one more; what is code 221 Porsche-locking differential? Then of course there's always the famous 224 Active brake differential?!!
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I assume you mean "early '93" build....? I just saw a '93 coupe on Craiglist and when I inquired about whether it had LSD I got a list of codes including the 220 LSD... Are later LSD's all Torsen types and is that code 221? Hope I'm not making this more confusing...
Last edited by Stephen Porter; 10-15-2007 at 02:04 PM.
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My info comes from a code sheet obtained from the 968 register site of PCA. It does not break them down to build dates, so unsure as to significance.
#5
A locking differential is always turning both wheels, where as a limited slip drives one wheel all the time. But, a limited slip has the ability to drive both wheels when one starts to spin. A limited slip is more efficent because you aren't driving both wheels at the same time, only when you need it. Thus, saving on gas mileage and wear and tear. The active brake differential uses and open differential. When one wheel starts to spin the ECM applys the brake to the one wheel via the ABS system, causing the other wheel to start moving. It is a very effecient and effective system. There is less weight because there is no clutches/torsen unit, and it saves on gas because only one wheel is driving. As for the option codes, not sure what is what, but at least everyone is on the same page as to how they work.