Re: more torsens in racing audis

[Dave Eaton <dave.eaton@minedu.govt.nz>]

thanks eliot.  i was prevailed on by 'swmbo' to get rid of my old autosports
and others.  sigh...

the reference to 60%:40% is the static torque split (not to be confused with
the bias ratio, which is the maximum relative torque difference allowed between
the drive shafts by the particular torsen implementation).  the static ratio is
determined by the invex gears of the torsen unit.  

while the majority of torsens in audis (including my 2) have a 50:50% static
split, the new s4 has a slightly rear-baised setup to it's torsen, 56:46 if
memory serves...

dave
'95 rs2
'90 ur-q

>Date: Thu, 26 Feb 1998 23:28:48 -0800 (PST)
>From: eliot <eliot@eskimo.com>

>
>this time from "fast lane", march 1991, pg 67.
>
>the car being described is the 1991 DTM audi v8. (frank beila's
>championship winning car in 1991, hans stuck won it the previous
>year)
>
>"transmission type: permanent  4wd with alternative torsen/ZF limited
>slip rear differentials/viscous coupling, torsen central power split,
>viscous coupling front differential;  tested with ZF rear, torsen
>central at 40% front, 60% rear power split" 
>
>
>racecar engineering 1996 vol6 no 2.  page 26, second paragraph:
>(this is on the all conquering 1996 BTCC audi a4 quattro)
>
>"..the central differential either a viscous coupling with
>torque split or a Torsen unit, the choices being dependent on
>the circuit characteristics and driver preference."
>
>(capitalization is theirs)
>
>they also go on to say that the BTCC cars have a front biased
>torque split of about 60:40.
>-------------------------
>
>Date: Fri, 27 Feb 1998 06:45:48 -0500 (EST)
>From: audidudi@mindspring.com (Jeffrey J. Goggin)
>Subject: re: more torsens in racing audis
>
>
>So, how did Audi get a Torsen to give a constant power split anyway?  I
>don't know about you but this makes me wonder about the accuracy of the
quote...
>
>>unless of course all the magazines are wrong....  :)