A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Ok, we all know Guard Transmission supplies diffs for Stasis...

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Old 06-28-2007, 05:34 AM
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I see a difference, but not huge.
Old 06-28-2007, 08:53 AM
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Default Sure if you are using a very soft spring/shock combo.

But then the ABS is also going to kick in to slow the front wheels down too.


BTW when the front wheels spin the torsen sends more power to the wheels with the least resistance not to the wheels that have the most traction. That is how the torsen works and the reason our cars go nowhere when one of the front axles snap.
Old 06-28-2007, 09:24 AM
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Default If that's the case...I'm curious why a higher biasing center diff corrects corner exit understeer...

based on what you said...that would make on-throttle understeer WORSE...or does that only apply to when there is ZERO resistance? I was always under the impression that as long as there is some sort of resistance, Torsen will send power where needed (i.e. to the rear exiting a corner while applying throttle)
Old 06-28-2007, 09:40 AM
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Default BZZZZZZT WRONG....torque is sent to the wheel that can maintain it (slower spinning wheel)

"TBR or Torque Bias Ratio, represents the "locking effect" of the differential. Specifically, it indicates how much more torque is sent to the high traction wheel (or axle) than is sent to the wheel with less traction. For example, a differential with a TBR of 4:1 sends 4 times the available torque that the wheel can maintain. In the example below, 80% of the total available torque goes to the higher traction, slower spinning wheel. "

<img src="http://www.torsen.com/images/bias_chart.jpg"><ul><li><a href="http://www.torsen.com/general/general_faq.htm">http://www.torsen.com/general/general_faq.htm</a</li></ul>
Old 06-28-2007, 09:40 AM
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Default Well I am sure there isn't much loss in resistance while coming out of a corner

at either end of the car so the torsen sends the power to where it is setup to do so. This is why changing the % that goes to the rear helps when road racing.
Old 06-28-2007, 09:44 AM
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Default Torsen works on torque multiplication... If a wheel is in the air that multiplication becomes

0 x ?? = ZERO

Having a wheel in the air is a different situation than spinning the front wheels.

In spinning the fronts, there is still an amount of resistance that exists in the fronts that gets differentiated back to the rear.
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