Plate type or torque sensing (ATB) Limited Slip Differential
Plate type or torque sensing (ATB) Limited Slip Differential
Author
Discussion

MarkL

Original Poster:

1 posts

264 months

Thursday 3rd March 2005
quotequote all
Has anyone a strong opinion regarding which type of limited slip differential works best in terms of handling behaviour?
I'm not sure if the is any torque transfer on the overun with torque sensing diffs either ! They both cost similar amounts to buy.
What are the pros and cons?

bsgowans

84 posts

298 months

Friday 4th March 2005
quotequote all
Mark,

Speak to Steve McH at JZ Machtech. He's just done a bit of research into diffs, and he should be able to put you straight. Basically, torque sensing diffs don't work in Porsches very well (I think!).

HTH,
B.

ninemeister

1,146 posts

282 months

Sunday 6th March 2005
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Depends on how you drive the car.

For pure track use the Salisbury/ZF/plate type diff is preferred as it has the ability to lock the drive, so if a tyre lifts on a curb for example the other wheel still drives.

The Torsen or torque biasing diff works by "favouring" the torque to one side or the other, usually with a bias ratio of around 2.5 or 3:1, it never locks solid. Generally more forgiving in normal use and easier to drive in the wet. Ideal for road use, also recommended for hillclimb cars running on somewhat uneven surfaces.