Torsen differential

[james accordino]

I meant bulletproof in the context of our cars.
You'll break or wear out a thousand other parts, some
multiple times before the Tors*n.  Second, I think the
racers are obviously seriously exceeding the design
loads of the unit.  Off-roaders probably the design
shock loads.  They make them in all sizes and design
loads.  From a football sized unit (like ours) to ones
the sized of beer kegs.  NO racecar would break one of
those.  I "thought" I read in some Audi literature
that the split spread was wider, but I'm not positive
and I'm sure you all have beat this horse to death.
Yeah, what's Tors*n been out for?  20-25 yrs?
Something like that, right?  It's certainly not "new
tech", but it works fairly well and is economical.
I'll end this now, before the Tors*n police arrive at
my door.

Thanks
Jim Accordino

--- QSHIPQ at aol.com wrote:
> --
> [ Picked text/plain from multipart/alternative ]
> Jim:
> A couple points.  First, the Torsen isn't
> bulletproof, it wears or breaks,
> that's all.  It's not meant to handle large torque
> applications in the audi
> application.  Heavy equipment is actually going
> towards the Haldex systems,
> not the torsen systems.  The main reason you see
> torsen centers is the
> ability to use ABS AND EDL with no human
> interaction.  Current audi applic
> ation torsens are 75/25/75 or 78/22/78 in the pre
> nue S4 cars, depending on
> which audi literature you read.
>
> More than a few folks would say that torsen is "new
> tech", even audi
> considers it "old tech" and is well on the road to
> haldex equipping quattros.
>  The reason you are seeing some of the players
> coming to torsen late in the
> game is just plain money.  Most of your buyers don't
> off road, don't put the
> device at the limit, nor want to have ABS/EDL
> disabled under full lockup.  I
> wouldn't make the jump with you that this makes it a
> great traction device
> (search the archives for volumes).  Can it last the
> lifetime of the vehicle?
> Sure.  Is that the definition of "bulletproof"?  Not
> to me, but it could be.
>
> When the urS4 and the neu S4 are raced, few are
> using the torsen (stasis
> appears to be the exception), many have had problems
> with breakage, and the
> most rules allow welding of the diff, which tends to
> keep the breakage
> problem at bay.  The offroad racers evaluated and
> ditched them because they
> broke quickly.
>
> What's "new" in terms of technology?  The haldex.
> The Haldex engineers claim
> that audi could use it in "fulltime" awd mode
> (actually *they* wonder why
> audi doesn't do this), and that the torque levels
> are virtually limitless
> (haldex roots is as heavy equip supplier).  Audi is
> actually late in the
> haldex game, since Jeep has been using the haldex
> type center diff in their
> SUV's for a couple years now.
>
> HTH
>
> Scott Justusson
> Ascribed torsen antichrist and
> Locker dude
> In a message dated 11/13/02 9:58:52 PM Central
> Standard Time, Jim A writes:
>


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