Stephen Henning said:
WRONG. Subarus are 80& FWD and 20% RWD until slippage occurs. Then the
RWD percentage goes up. Some may vary, but my Subaru Legacy was 80/20.
Torque steer was a major problem. May my Subaru Legacy rest in peace,
or many rusty pieces.
I stand corrected.
Subaru uses 3 different AWD systems.
Continuous AWD: Subaru manual transmissions use Continuous AWD, normally
50/50 front-to-back power split and use a mechanical viscous center
differential to to vary the power split when there is a loss of traction.
Active AWD: Subaru's automatic transmission use Active AWD, mostly front
wheel drive and uses traction sensing computer input to electronically
vary the front to rear power split via a hydraulic multi-plate transfer
clutch. This is what my Legacy had except it was viscous.
VTD AWD (variable torque distribution). New in 2001, VTD transfers
powers front to back electronically. The power split is 45/55 front/rear
and the rear wheel bias is designed for a more luxury car feel as
opposed to the front bias of the Active AWD system. Usually 45/55 front
to back split but that varies according to wheel slippage.
Apparently before they came up with the VTD system, they realized that
torque steer is not very pleasant.