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locking diff's in snow on Coupe Quattro
Several others write:
So... How can you steer on snow with the rear diff locked? I don't
autocross at all, but when I lock both diffs in snow/ice, it's really
difficult to steer. I don't think locking the rear diff is a good
on_road technique (is it)? Am I missing something?
Well, I drive with a tail-out rally type style. With just
the rear diff locked, I start the turn with the wheel and
then control and complete the turn by steering with the
throttle. By modulating the throttle I control the amount
of rear-wheel wheelspin and hence the radius of the turn.
This is NOT for the novice and should not be used in traffic
--> But was ALWAYS a huge blast inmy '73 Trans-AM on Drypavement!! (was
young then ;-)
Since I have a 5000TQ, locking any diff causes the ABS to
disengage. So, I usually ride around in slippery weather
with the diffs unlocked. On *real* slippery surfaces there
isn't much throttle steer available making the car kind of
unstable (my biggest quattro complaint). The car just seems
to pivot right in the middle without any tendancy for
stability with more or less throttle.
That's part of the reason why you need to be able to lock
just the rear diff. You want to be able to break both rear
wheels loose, to steer with the throttle, without breaking
the front wheels loose and loosing steering response.
With both diffs locked, when you break the rear tires loose
you also break at least one front tire loose and loose all
--> What about my 90 Quattro Coupe??? when I lock the rear's only via
the Panel switch, it disengages the ABS and then un-locks at over 15 MPH
Will this still work, or only below 15 MPH...???
David Wagner (Currently thein the ONLY city in the world where I will NEVER
drive - Tokyo, Japan)