AE86 LSDs

[Mux213]

gt99,

Very true, under acceleration the LSD locks, when the LSD locks the car wants to go in a straight line because the wheels can not rotate at different speeds (well atleast with a clutch LSD)

Under deacceleration the same applies, if the LSD locks, your car wants to go in a straight line.

So LSD has the advantage of being able to put power more effectively on the road but the disadvantage of wanting to push the car in a straight line.

However we have to remember that the LSD is an active device. Clutch LSDs are pretty simple devices going from no lock when the car is driving at constant speed, to full luck under full accelerations. Viscous and torston work a little different but the general idea is the same. This enables you to make good cornering because you do not start accelerating until you reach the end of the bend and only then the LSD will lock giving you best of both worlds.

This is why I think someone calling a welded diff a 100% LSD is an idiot, a welded diff is locked also under constant driving speeds. a 100% LSD would not lock the wheels under constant driving speeds or deceleration and give you good cornering, only once you hit the accelerator the LSD would lock immediately.

To my knowladge there are no 100% LSD devices because it would be very hard to actually make it work like this