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Re: RE: [VWC] Aftermarket differentials Braking





From: <nocones77-vw@yahoo.com>
Date: 2005/03/31 Thu AM 08:47:39 EST


However, Brian, I can definitely say that there is a very important difference
between the wheel the wheel speed and the load applied. They are NOT related.
Torsens apply power to the more heavily laden wheel under acceleration, NOT the
one that is spinning slower. In many cases, the wheel with traction is moving
slower, but not always. And in fact, if there is no load (or nearly none) on
either wheel, a Quaife/Peloquin/Torsen will become a completely open
differential. In this case, the slower wheel does not receive any engine torque
at all...it will leave a single stripe of rubber just like an open diff. If I
corner hard enough to take all the weight off the inside front wheel as I hit
the gas, I can spin that inside front wheel like crazy until I back off or
straighten out the wheel and get enough load back on that tire.

Presuming a Torsen works the same in braking as in acceleration (again, this is
NOT a safe presumption, as it is probably tunable by the manufacturer), it
would even out braking force between the wheels as long as both wheels have
some traction. But when a wheel is locked under braking, it would essentially
open the diff up because there would be no load on the locked wheel.

Neal
'77 Scirocco

IIRC from some discussion on here sometime back, the way to make a Peloquin work best is to use the Po-boy diff kits he sells along with the differential itself.  I don't understand this completely, so bear with me:  THe po-boy kit puts pre-load on the differential which makes the thing work properly under all conditions?  Is that right volks?

David

--Got me an oar today, stirrin' it up...

'83 GTI, Daily Driver...
'87 16V, parts car
'82 pickup, 2.0 16V, collecting dust...




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