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Re: One and not t'other?



In a message dated 98-04-24 10:02:39 EDT, you write:

<< As a matter of fact, I _believe_ that it's impossible on a Type 44
 >as well.  But I have zero experience of the car and hence zero proof.
 >And I'm not going to get caught up in reading behaviour into a
 >simplified cutaway drawing of a mechanical device.
>
Don't need to. Your Torsen has the EXACT same part number as a v8,
interchangeable, forget the rest of the fiche.  My exact point is there is no
difference in part number.  So if one chassis does it, both have to.  Assuming
the torsen, of course to be an absolute traction device in both cars.
 
>I said: "I'm not denying ...".  I can't deny it, because I have no
>experimental base on which to do so.
Given the same switch 016 409 751A, you can't deny it on the Urq either, or am
I missing something?

>As a matter of fact, I _believe_ that it's impossible on a Type 44
>as well. 
Ah, based on the fact that you ARE denying it happens on the Urq, based on
your "experiments".  I say the above contradicts the below, given the same
switch is used in both cars.

 >It is just _so_ difficult to get an ur-quattro into this situation.  It
 >might be easier with 6" tyres, but Audi started mounting 8" as standard
 >long before the Torsen came out.  I might have to see if I can borrow
 >a set of an old car at a track day somewhere.
  >>
Not sure tires are necessary, only the variables.  My 84 has 8in too.  I
believe it to be easier than you think.  Betcha it's already happened.  Wet
pavement is all that is necessary for a torsen to hunt.  Do you drive a 'set
and forget' turn?  Unwinding only after intial turn in, and adding throttle.
If you correct for your line, you are correcting a torsen hunt.

Given what the switch does, I'm not sure I understand how you can deny or not
believe it's operation.  You give the chassis and the switch too much credit.
Could wheelbase be a factor?  Sure it could, Weight transfer = (weight X cg
height/wheelbase) x g.  Given the switch, we could certainly see that a
significant more amount of weight goes fore/aft in a 44 car than in an Urq.
Significant for the higher cf spider bites.  Get the cf and the variables
right, significant on any chassis.  Why?  Two different chassis using the same
switch, doesn't change the properties of the switch, only the effect of the
switch on chassis dynamics.  My answer, lower cf Phil and try again.  It ain't
the tires.  


HTH

Scott