WTB: 3.15 or 3.23 LSD

[drummerboybisch]

As it says above lookin for one of the two. Hoping more for the 3.23, but if you have one for sale let me know.

EDIT: I am just looking for a 3.23 LSD with reasonably low miles, say under 80,000.

[peterg95M3]

I've got a stock 3.15 out of a '95 M3. Make me an offer.

[ChewToy]

I have a 3.15 for sale. 70k miles in perfect condition. Asking 400+ shipping. Email me for more info if you might be interested. Tia.

[ronzo]

This has only 9000 miles. Perfect condition. Out of a 2000 Z3 2.8 manual. It is a torsen which is very desirable and harder to find. Asking 575. (I paid 1750. for an OEM replacement with a different ratio) Pics on request

[drummerboybisch]

Originally posted by ronzo
This has only 9000 miles. Perfect condition. Out of a 2000 Z3 2.8 manual. It is a torsen which is very desirable and harder to find. Asking 575. (I paid 1750. for an OEM replacement with a different ratio) Pics on request

Whats the difference?

[ronzo]

I copied this from a post on a board some time ago. In addition I recommend going to the addresses below for plenty more info on Torsens

"To optimize the way engine torque and tire grip are transmitted to the pavement (the Z3 Series, like all BMW's except those with all-wheel drive, has rear wheel drive), BMW standard-equips all Z3 models with a specially engineered limited-slip differential. Traditionally, BMW limited-slip differentials distribute up to 25% of the driving torque to the wheel with more traction, rather than simply letting the wheel with less traction spin. In the Z3 unit, this remains true when the engine is powering the car; under deceleration, however, up to 40% of the decelerative torque is transferred to the wheel with more traction. You might say that this differential "differentiates more than most."

In practice, this purposeful differentiation more evenly distributes not only the driving torque between the two sides, but distributes the decelerative or "engine-braking" torque to an even higher degree when the driver lifts the accelerator in a corner. In turn, this improves the rear tires' total grip in either situation and helps reduce transitional oversteer in severe cornering maneuvers. "It will lope along at sightseeing cruising speeds without making the driver feel as if he were pulling backward on the reins all the time, or it will tackle a winding mountain pass as aggressively as you feel comfortable driving it, aided by traction control, ABS and that limited-slip diff." So wrote "AutoWeek" in its June 1, 1998 issue, and that was before Dynamic Stability Control was added to the Z3's standard features."

http://www.amghummer.com/features/Torsen/Work/torsen_works.htm

http://www.torsen.com/products/T-2.htm

http://member.rivernet.com.au/btaylor/BMWText/technical/TorsenDifferential.html

http://www.torsen.com/

[drummerboybisch]

Ok i understand, i just had never heard the word torsen uesd before. Its the same setup that for instance quife uses in there diffs.

[ronzo]

I'm not an expert but I believe they are similar.
I forgot to mention...People who autocross or track a lot know that you can wear out a diff and rebuilding is expensive. Torsens are supposed to last much longer.
Good luck in your search

[diuleilomo]

drummer check ur PM

[drummerboybisch]

BUMP for edit and still looking

[Mpty3]

I know your now looking for 3.23s only, but I did find this browsing bf.c classifieds:

http://www.bimmerforums.com/forum/showthread.php?s=&threadid=153530

I'll have a 3.23 for sale with great mileage, if I can find me a 3.38 or 3.46 in good condition for a pretty reasonable price. :buttrock