RE: Torsen Tech

["Smith, Kirby A" <kirby.a.smith@lmco.com>]

Phil: 

It was my understanding that the rear differential of my 90q was not
limited slip.  If it is, I would be most interested in hearing about it.
Behavior in the snow is much different with the lock on, too different
for me to assume limited slip.  (The differential torque that could be
generated by operating in snow would be expected to be too small to
overcome the slip torque.)  While locking is automatically removed above
15 mph, this can be easily defeated, I suspect, from reviewing the
wiring diagrams.  What I haven't determined, because I can't presently
test it at speed in the snow, is if defeating the speed limit is worth
the time to implement.

kirby

> ----------
> From:
> quk@isham-research.demon.co.uk[SMTP:quk@isham-research.demon.co.uk]
> Reply To: 	phil@isham-research.demon.co.uk
> Sent: 	Monday, February 23, 1998 6:29PM
> To: 	kirby.a.smith@lmco.com
> Cc: 	quattro@coimbra.ans.net
> Subject: 	Torsen Tech
> 
> In message
> <A955A4BCA8F8D011AE1C0000F804A88A1C4547@EMSS05M02.ems.lmco.com>
> "Smith, Kirby A" writes:
> 
> > >However, adding and deleting that rear locker to a speed event has
> > >rewards beyond the customary set and forget.  For either Gen I or
> > Torsen >cars.
> > 
> > Scott, would you mind amplifying your thoughts on rear locking for
> > Torsen cars?
> 
> I suspect that most TORSEN cars are fitted with limited-slip rear 
> differentials.  Certainly the rear differential on a TORSEN ur-quattro
> can't be 
> locked above about 15mph.
> 
> -- 
>  Phil Payne
>  UK Audi [ur-]quattro Owners Club
>