2009 Audi A4 Avant B8

[Cody Forbes]

The crown diff is most certainly made by Torsen.

-Cody Forbes (mobile)

On Sep 22, 2014, at 3:17 PM, Dave <dave.eaton at clear.net.nz> wrote:

> the crown diff is not a torsen, but an arrangement of different diameter
> crown gears that splits torque.  description on how it works is up on
> wikipedia.  the rear sports diff is also not a torsen design...
> 
> 
> dave
> ¹08 rs6 avant
> ¹12 vw alltrack
> 
> 
> 
> 
> On 23/09/14 7:00 am, Cody Forbes wrote:
> 
>> 
>> - RS5 introduced the new crown-gear center Torsen with variable torque
>> bias front to rear. I think it's still the only car with it, or maybe
>> B8.5 S4's can get it optionally.
>> - "Sport Diff" rear differential which is standard on RS cars and
>> optional on S cars starting with B8. It's a complicated arrangement of
>> torsens and clutches that allows torque split to be changed left to right
>> (torque vectoring).
> 
>> -Cody Forbes (mobile)
> 
> 
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