RE: Dave, Phil et. al. - some thoughts

["Lawson, Dave" <dlawson@ball.com>]

>
"Trg = 300lb/ft car 75/25/25/75.  KISS, look at what that means in
Tshift.

T1 = 225lb/ft
T2 = 75 lb/ft
OR, anywhere in between.
T1 = 75 lb/ft

T2 = 225 lb/ft
Tshift MAX = 150lb/ft"

ok, here we go locked centre generation 1 quattro in the same scenario:-

t1=0
t2=150lb/ft
tshift max = 150lb/ft

or,
t1=150lb/ft
t2=0lb/ft
tshift max = 150lb/ft
>

Dave, for the locked center, the split is 50/50, so given the 300 input,
the numbers would be 

t1=150lb/ft
t2=150lb/ft
tshift max = 0lb/ft

or,
t1=150lb/ft
t2=150lb/ft
tshift max = 0lb/ft

here we have no torque shift(transfer) between the front and rear axles.

Now using the same numbers for the open center diff...

t1=300lb/ft
t2=0lb/ft
tshift max = 300lb/ft

or,
t1=0lb/ft
t2=300lb/ft
tshift max = 300lb/ft

So a torsen distributes the torque better than an open center diff with
less torque shift. This makes the torsen more usable for the average
quattro driver who has never locked the center diff of a gen I car.
Which is probably >90% of the original(and 2nd ) owners.

-
Dave Lawson