Re: Torsen diff questions...

["Graydon D. Stuckey" <graydon@apollo.gmi.edu>]

On Thu, 15 Feb 1996, Jeremy R King wrote:

> If you're trying to change the torque bias, I think you're out of luck.  
> From what I understand, that is built in to a particular unit because of 
> the friction between the gears.  At least that's what the paper says.  
> You can get Torsions with different biases though.

Jeremy, Jeff, etc,

	The paper does indeed make it sound like you can't tune it, but 
my info came from a Gleason engineer.  The bearing friction seemed 
to make sense too.  We never did change it becasue it worked better 
than the rest of the car, and certainly better than any of our 
drivers.  I think I would play with it though if I had another chance.
	Further, Gleason can change the torque BIAS alot by changing the
pitch of the threads on the spiral gears.  That changes the one-way aspect
of the gear train substantially. 

	But, alas, that is not something just anyone can do without 
tremendous machining capabilities.  :-0

Later,								
Graydon D. Stuckey								
graydon@apollo.gmi.edu								
Flint, Michigan   USA
'86 Audi 5000 CS Turbo Quattro, GDS Racing Stage II				
'85 Mazda RX7 GS 12A-leaning-towards-a-13B-soon