8 replies to this topic

[TomS2]

I know Porsche changed the type of Limited Slip, LSD (setting up for future search) at some point in the production of the 968.

I tried the search and failed.

What year did they use which? Did they use torsen, quaife, or torque bias?

What are your thoughts on the pros and cons of each for a weekend toy, DE toy?

[flash]

torsen was used on later cars (this would be a torque biasing differential)

a clutch type was used in early cars

clutch type tends to grab tighter, but provides more issues on a daily driver - torsen types a generally better for daily drivers, but less effective on the track

however, a properly set up torque biasing diff can work very well on the track, especially if you get the Guards unit, which doesn't have as much of a spin problem as the factory unit

[TomS2]

torsen was used on later cars (this would be a torque biasing differential)

a clutch type was used in early cars

clutch type tends to grab tighter, but provides more issues on a daily driver - torsen types a generally better for daily drivers, but less effective on the track

however, a properly set up torque biasing diff can work very well on the track, especially if you get the Guards unit, which doesn't have as much of a spin problem as the factory unit

early as in how early? what is the difference between a guards and a quaife? was the clutch unit the same (or real close) to the unit in the in the later 944/951s?

If the car is going to see DEs im wondering if a factory LSD should be a requirement, of if the $ saved should be spent on my own LSD and if so, which.

im talking with the owner of a 968 that is optioned virtually the same as my S2 with about the same miles. if i add a few $$ for the newr car, swap out suspensions, then add a LSD i may be able to pull it off, then sell my S2 as stock.

i have M030 shocks all around and weltmeister sways on my S2 and am real happy with how it handles.

[flash]

my best recommendation is to call pete at rs barn - he has very specific info, feedback and experience with every one of these diffs

[bob blackwell]

The clutch type LSD was only used in the 1992 968. Starting in 1993 Porsche used the TORSEN (Torque Sensing) type LSD. I have the TORSEN in my 1993 968 and am quite happy with it on the track and on the street. Clutch type LSD will periodically require maintenance, the TORSEN is maintenance free. I bought the Quaife LSD and had it installed in my 1987 924S and was very hapy with it as well. No experience with Guards LSD. Don't think the front suspension is interchangeable between 944S2 and 968. Good luck, Bob Blackwell.

[Big Dave]

The clutch type LSD was only used in the 1992 968. Starting in 1993 Porsche used the TORSEN (Torque Sensing) type LSD. I have the TORSEN in my 1993 968 and am quite happy with it on the track and on the street. Clutch type LSD will periodically require maintenance, the TORSEN is maintenance free. I bought the Quaife LSD and had it installed in my 1987 924S and was very hapy with it as well. No experience with Guards LSD. Don't think the front suspension is interchangeable between 944S2 and 968. Good luck, Bob Blackwell.

Ive got a Porsche LSD [plate type] fitted in my car. it was removed from a 93 car before i had it refurbed + fitted to my 95 car...FABULOUS for track / street driving, BUT more biased to track...
Bob B the S2 suspension can + does swap from 944,s to 968,s.. As i have done it....NO difference whatsoever....

[TomS2]

Thanks guys.

Im looking for a DE toy that will get some street time. Not going to get much more than 4k miles a year.

I saw a quaife in the FS section from a while back. what is the difference between the quaife and the later so called oem LSD? is seems like a quaife can be done for about 1500 which isnt much more than the premium a so called factory LSD car commands.

[bob blackwell]

Dave, that is good news, I had heard that the front spindle had to be changed to accommodate the swap.

Tom, since I have used both I do not believe there is any difference between the two except that the Quaiffe will be newer and probably last longer. Good luck, Bob Blackwell.

[Big Dave]

Bob, so long as its from a S2 or late turbo....