A4Driver

I asked a knowledgeable friend of mine how my car could achieve a 40/60 split in power (or torque) between the two axles if the wheels are traveling at the same speed.

He said the car must have a viscous-type center differential. When I told him that the car has a torsen differential, and that it’s all mechanical, he said that there must be some hydraulic system in the car that is allowing the uneven split between the two axles.

So I’m turning to the experts here at AudiWorld to help me explain things to my friend (and myself).
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mart242

http://www.tbssowners.com/forums/showthread.php?t=17218

http://www.torsen.com/files/Torsen%2...al%20Sheet.pdf
http://www.torsen.com/products/T-3.htm

markcincinnati

One of the coolest features of all the TorSen systems is they are NOT reactionary -- that is they ACT IN REAL TIME, they do not require wheel slip to work. Other systems require some slipping to kick in.

MrStuff

That's the beauty of the quattro! Fully mechanical, plus the Torsen DOES allow for one end to spin faster then other!

A4Driver

Thanks, guys!

euroboost

how much abuse can the torsen on the quattro system hold?, will they be able to hold good on a drag A4?, I've heard they are pretty tough even for drag racing

markcincinnati

Well, Hummer uses them too. . .

Dante_JoseCuervo

Yup, I was just about to say that. Torsens can take quite a beating.