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Originally Posted by driftflo
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Originally Posted by gmd2003
The diff is able to do 30% , 60% or 90% lockup depending on the forces applied to the wheels .
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why is a value like this given in percentage and not as an absolute value? right, because it depends on the force applied: apply 100Nm and 30% means another absolute value than if you apply 1.000Nm and take 30% from this.
so it simply makes no sense to give different percentage values. it does make sense to give two values as there is one ramp for power and one for coast. but a third ramp simply is not there!
of course the guys at diffsonline can claim anything they want to. but as long as there is no in depth explanation to this "magical behaviour", i can not believe it.
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Originally Posted by gmd2003
So it's similar to the 0-100% lockup behavior of the m diff but much more durable with a faster response .
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impossible! look at the way the force is applied to the clutchpacks in the gkn viscolok and look at the activition in a clutch type lsd. if someone has understood both ways of pressure generation it is clear that the above is impossible.
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Originally Posted by gmd2003
The faster response is from having good pretension with the multiple clutch packs .
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no, the faster response comes from the way, the pressure is applied in a clutch type lsd vs. viscolok.
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Originally Posted by gmd2003
Again how Diffsonline physically constructs the diff is not known by by me ,...
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so i guess i have to wait until someone will strip down his unit and is posting pics of the internals.
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Originally Posted by gmd2003
... i just know it DOES behave like a 30% locking diff when I want it to and a 90% under deceleration . It works and works well .
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ok, it locks 30% on power and 90% on decel (this setup would make no sense in a FR car but it could be built, yes!).
...but in what situation will this unit lock 60%? |
I'm running on no sleep this am , I meant 90 % on acceleration and 30 on decel . I understand what you are saying , it's certainly a percentage of tq to the wheels . In every other clutch style diff it was my understanding that you could essential only have it behave x% tq under acceleration and x% tq transfer under deceleration . Most people ( me included prefer less under deceleration as it makes the car more stable under braking . This diff is very stable under braking and does an excellent job of putting down all 525hp in my Z4M on track esp mid corner . So it definitely behaves differently under acceleration vs dec ( has more lockup on acc) . Why don't you email Dan and ask him ? He's very responsive and I'm sure he would answer . I was going to get a standard 30% /60 % lockup 3 clutch setup but bought this carrier bc someone else had backed out and I got a reduced price .