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Awdisaurus excreting dyno oils



In a message dated 97-04-08 03:22:37 EDT, you write:

<< > And again, without the spam, I ask that you post an informative post for
 > every one you use to spam me.  You are down a couple in that respect.  We
 > won't forget that either. Now, I have put up a post, an informative one,
 > regarding the use of 2 wheeled dynos for a quattro hp evaluation ONLY.
 >  Randall, you want to translate that to the track.  Won't jump there with
you
 > sir.  It's in the owners manual (and the car isn't moving Randall), so
many
 > shops are willing to do the procedure when you can show them the
 > manufacturers documentation.  The point is getting lost in the muck some
 > here.
 > 
 >Scott,
 
 >Here is a question.  If one were to test AWD v RWD v FWD, then a "test
 >bed" of some sort must be devised.  This test bed should be able to
 >switch among the three configs.  Therefore, if one could take a car, any
 >car, that could by some "means" be able to deliver power to the ground
 >in any of these three configurations would be suitable.  One would
 >surmise that if you could dyno the car, an AWD car, with just two of the
> wheels, and get some meaningful info from this, then driving that car on
 >a road, or track, would yield meaningful info on that AWD/RWD/FWD
 >question that was previously asked.
 
 >Sorry that it took so long to inform you, I was out of town.
  >>
There is no question above (leading the witness: objection).  "Surmising" and
designing the specific methodology are two different animals.  The former
covered extensively, the latter with no precedence or argument.
Randall:

Couple problems there.  1)  The awd version of the audi is MASSIVELY
different than the fwd version, in design and engineering.  2)  explain to
me, specifically, how you are going to make a rwd audi, or a fwd one for that
matter, out of an awd car (as in exactly what are you going to "disconnect"
and how).  I encourage you to take a gander under a fwd audi before you
answer, specifically, what is the difference between the awd rear and the fwd
rear geometries  3)  Your curb weight, f/r balance, COG, roll center, sprung
weight, unsprung weight and the ratio between the two will not give you
anything to compare, because what you are doing to achieve rwd and fwd isn't
IN the DESIGN of the awd system.  4) a dyno test on a car has NOTHING to do
with suspension, the car isn't moving.  

I respectfully encouraged you off line to explain the methodology of this
whole idea some time ago Randall.  You didn't.  If you think that you can
achieve the above, I would re-ask that you post how you would specifically
isolate the variables, how the results are "significant", how the results
"implicate" anything.  Disconnecting a driveshaft is effective in dyno
testing only.  You are jumping onto the track with this argument.  Few will
go there with you.  With this thread, the whole DYNO information is now mired
firmly, my only "claim,"  DOCUMENTED in the owners manual.  Specifically
design your track leap exercise, Randall, or, better yet, let's move on.

Scott