[s-cars] While we are on the subject of WGFVs...

[James Murray (QA/EMC)]

So now to keep the thread alive a tad longer ;-) I ask you guys with
experience, which is the best N75 WGFV to use for the UrS-Cars? The
stock N75H, or the N75K (RS2 valve) or is it setup dependend?

ECS is having a sale their "Race" N75 at $80.00 However I recall someone
saying this was simply the N75H. If I was going to replace my WGFV I'd
like to get the best one available... 

/Jamu. 

P.S. this article maybe be of interest to some...
http://forums.audiworld.com/s4s6/msgs/49283.phtml

-----Original Message-----
From: s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] On Behalf Of djdawson2 at aol.com
Sent: Friday, January 13, 2006 11:30 AM
To: gailus at mindspring.com; s-car-list at audifans.com
Subject: Re: [s-cars] While we are on the subject of WGFVs...

So... to make a long story short... there IS a vacuum present at the
turbo inlet.  This is the point at which I quit the last time we had
this thread.  No one would buy into a vacuum in that area... and I threw
in the towel.  Paul "Sonic Nozzle" Gailus has provided the explanation.
 
And he still hasn't told us if he was just messing with us the other
night with his dissertation on the Audi sonic nozzle...
 
Dave 
 
-----Original Message-----
From: Paul Gailus <gailus at mindspring.com>
To: s-car-list at audifans.com
Sent: Fri, 13 Jan 2006 10:47:56 -0500 (EST)
Subject: Re: [s-cars] While we are on the subject of WGFVs...


In order to get any airflow from the external atmosphere into the
compressor inlet, the static pressure at the inlet has to be lower than
the ambient atmospheric pressure.
The only way you can get air flow into the compressor inlet without
having a static pressure there less than atmospheric would be to have an
external source of dynamic pressure supplying high velocity air (i.e.,
another blower).
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