|Wrong torque (archive)|
Posted by Gary on September 30, 1998 at 13:33:15:
In Reply to: Re:Not the way I remember autoshop class posted by Michael C on September 30, 1998 at 12:25:22:
The torque reaction I was talking about is rotational along the crankshaft/driveshaft axis.
When the engine tries to rotate the driveshaft it uses the car's chassis as a reference, and the opposite but equal torque reaction tries to rotate the car chassis (fortunately with little success). It is enough torque however to cause less car weight to be on the right rear wheel, therefore it has less traction than the one on the left. So the right wheel tends to do most of the "burnout" spinning on a non LSD car.
The limited slip differential causes a "preload" between the spider gears (using friction clutches usually), requireing a larger difference between traction before it lets one side slip. This preload is why LSD cars will still apply some power to the wheel that has traction.