[s-cars] RS2 EM alternative on Ebay

[Dave Forgie]

James and Bob (and Dave D.):  Absolutely we have been "improving" our cars
over that provided by Hans und Fritz (Claus had the day off).  However, we
have not been redesigning OR replumbing the N75 (device number) WGFV.
Obviously, THEY have been improving it (OR correcting, er, ah,
..."problems") as they have gone through the alphabet to arrive at "H" but
it still, generally, functions as they designed.

I will see if I have a diagram that improves on what Scott Mockry has on his
SJM Autotechnik website.  Probably won't put the debate fire out, though.

Dave F.

"James Murray (QA/EMC)" wrote:

> "There is only one right answer - the one the Audi/Bosch engineers
> designed."
>
> And which of the five N75 WGFV that Audi/Bosch engineers designed is the
> best one for the UrS-Cars? The C, K, H, J and F variants... ;-) okay we
> know it should be either the N75H and the N75K but the verdict is still
> out if there is a benefit and under what conditions... At least until
> someone with real world experience pipes up!
>
> /Jamu.
>
> P.S. Oh c'mon, we all aspire to do a little Audi Engineering/testing of
> our own now don't we... ;-))
>
> -----Original Message-----
> From: s-car-list-bounces at audifans.com
> [mailto:s-car-list-bounces at audifans.com] On Behalf Of Dave Forgie
> Sent: Sunday, January 15, 2006 11:36 PM
> To: Djdawson2 at aol.com
> Cc: s-car-list at audifans.com
> Subject: Re: [s-cars] RS2 EM alternative on Ebay
>
> All I was trying to say was "equal length" header runners is meaningless
> phrase in itself.  If the equal lengths were equal shape and discharged
> to atmosphere like a 60's Swamp Rat IV dragster, sure that would
> probably be important.  However, when the "equal lengths" are all
> twisted and turned differently, what is more important is the flow that
> will pass through each runner at the same head loss.  The exhaust flows
> and the head loss (back pressure) should probably be the same if each
> cylinder is to put out the same number hp and torque as its four brethen
> (sistern?).  Otherwise, some of the piglets are going to be more equal
> than the other (so to mix a metaphor).
>
> Of course, this is based on Civil Engineering non-compressible flow
> background.  However, I think it still is valid (for the most part).
>
> It was just and observation about the design of that header/EM on the
> German eBay.
>
> No wars intended or wanted.
>
> I stayed out of the WGFV "debate".  I still don't understand why there
> was a debate.  There is only one right answer - the one the Audi/Bosch
> engineers designed.
>
> Dave F.
>
> Djdawson2 at aol.com wrote:
>
> >  In a message dated 1/15/2006 9:10:47 PM Mountain Standard Time,
> > joe.pizzimenti at gmail.com writes:
> >
> >      Uh oh, Forgie's theorizing again...
> >
> >      Joe, bracing for war of the Daves, Pizzo
> >
> > No war...  I promise.
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