2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Old 09-02-03, 03:01 AM
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Lsd

hey, wats the difference between the rear end LSD and the clutch LSD? how is the purpose of each different?
Old 09-02-03, 03:29 AM
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limited slip differential spins both tires
now i dont under stand what rear end lsd vs clutch type means

if your talking viscous or torsion vs clutch type then they differn in lock up times and also part longevity
clutch type and torsion both wear out eventually and viscous uses a fluid so it doesnt wear out
but viscous takes the longest of all to lock up

im no expert but i hope i helped
Old 09-02-03, 03:30 AM
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One uses a clutch j/k. One uses a clutch and the other uses fluid. If you go to www.howstuffworks.com and do a search on limited slip differentials, it will show pics and videos of the inside of a diff and illustrate much better then I could explain it. Pictures worth a thousand words.
Old 09-02-03, 03:31 AM
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Clutch wear out faster, require special fluid and react faster under no traction situations (mud, ice etc).
Old 09-02-03, 03:44 AM
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which is better to get viscious, torsen or clutch type? wats viscious and torsend? brands? sorry i totally new...

thanks
Old 09-02-03, 04:01 AM
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viscious is fluid. Torsen is a brand, but its also a locking gear type LSD I believe. Someone will definetly correct me if I'm wrong. Which one is better depends on the type of driving/ racing you do.
Old 09-02-03, 09:24 AM
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Clutch Types LSD uses clutch packs that push against the spider gears of the rear end when one wheel starts to spin faster than the other. Clutch type LSDs are one of the best, as they have a very fast lockup , and can usually handle alot of power. Downside of a clutch-type LSD, is that over time the clutch packs can wear out, and not work very well.

Torsen LSD (TORque SENsing) uses helical gears , but accomplishes the same thing, by not letting one wheel spin faster than the other. Usually this is the LSD that has the fastest lockup time. This is the LSD that comes in FD Rx-7s and in some 94+ Miatas. A torsen LSD cant really wear out, but can break completely under very high stress situations (Lots of power, or repeated drag launches)

Viscous LSD uses the rear end fluid to accomplish the same thing, by not letting one wheel spin faster than the other. The downside of this LSD, is that is is the slowest to react, because one wheel has to start spinning before the fluid LSD reacts and starts to work. Probably the worst LSD as far as performance is concerned, but will most likely last forever, they're not prone to wearing out or breaking.

Hope that answers your question.
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