Originally Posted by 9an3qter
Dont the brakes only apply (on the WRX) and deliver more traction when the traction control is applied or does this work when it is disabled as well. also that still does not apply more power to the wheels so am i correct in saying it is essentially a two wheel drive vehicle? im sorry im still kind of lost
Well, the 1 wheel drive open diff argument is a little of a miss-conception.
The WRX is an AWD. each tire puts as much driving force to the ground as it has traction to do so. Regardless if the tire is spinning or not, it's still transmitting torque and power based on the coefficient of friction... static or dynamic. Any LSD just limits the speed/torque differential... some are normally open, others are normally closed.