Hap? -- Re: [s-cars] EMRE: turbo flanges et al.

[Emre Washburn]

I'm confused here...

Why is my name in the subject line?

Emre
92 //S4
----- Original Message ----- 
From: "Bill Clancy" <clancybill at yahoo.com>
To: <mlped at qwest.net>; <CaptMagu at aol.com>; <ray at s-cars.org>;
<gary.m.lewis2 at boeing.com>; <Djdawson2 at aol.com>; <sola4est at yahoo.com>;
<s-car-list at audifans.com>
Sent: Sunday, May 23, 2004 11:47 AM
Subject: Hap? -- Re: [s-cars] EMRE: turbo flanges et al.


> can someone clue me in as to who Hap is?    Many of you refer to him but I
> don't see an email address that looks like that.
>
> ----- Original Message ----- 
> From: "mlp5" <mlped at qwest.net>
> To: <CaptMagu at aol.com>; <ray at s-cars.org>; <gary.m.lewis2 at boeing.com>;
> <Djdawson2 at aol.com>; <sola4est at yahoo.com>; <s-car-list at audifans.com>
> Sent: Sunday, May 23, 2004 6:34 AM
> Subject: RE: [s-cars] EMRE: turbo flanges et al.
>
>
> Hum, thanks Hap.  I hadn't thought of it this way.  Seems counter
intuitive
> at first, but as one thinks about is it could make sense that with a
larger
> turbo and, presumably a larger exducer bore etc. in the hot side scroll
you
> would be moving more gas past the blades without the need to provide as
much
> pressure release by bypassing them.
>
> I supposed a smaller bore could also be argued to also provide more
control
> "resolution"  Certainly as a WG valve gets bigger, I can see where you
would
> start to get an "On/Off" sort of pressure delivery/control.  Of course the
> above only makes sense to me if I'm correct in the assumption that the
> current WGFV & is APEX'i AVCR counterpart are capable of delivering
> "partial" relief modulation ~ if that's the case, the parts involved must
be
> balanced (i.e. tunned) in some fashion to work properly together.
>
> Sounds like what one needs is a pressure gauge/sensor/port plumbed into
the
> either the exhaust manifold or turbine scroll and a way to plot exhaust
> manifold/hotside scroll turbine propulsion pressures against intake
manifold
> boost and WGFV duty cycles.
>
> Since our WG don't vent to atmosphere, I wonder what other, if any
> adjustments, are made to allow for post turbo exhaust pipe pressure?  I do
> know I've seen "general" recommendations &/or comments that WG gases be
> brought back into the primary exhaust gas stream as far downstream from
the
> turbo as possible.
>
> mike
>
>
> -----Original Message-----
> From: CaptMagu at aol.com [mailto:CaptMagu at aol.com]
> Sent: Saturday, May 22, 2004 10:05 PM
> To: mlped at qwest.net; ray at s-cars.org; gary.m.lewis2 at boeing.com;
> CaptMagu at aol.com; Djdawson2 at aol.com; sola4est at yahoo.com;
> s-car-list at audifans.com
> Subject: Re: [s-cars] EMRE: turbo flanges et al.
>
>
> Mike
>
> If and when we do figure out the actual measurement, I do have an
> explanation if it is smaller. On higher boost applications, you don't want
a
> bigger hole. You want a smaller hole since less of the exhaust is going to
> be vented out the wastegate. I've been researching wastegates for my new
> tubular manifold on the Tial website. I'm probably going to stick with the
> stock WG.
>
> Hap, researchin dahkine wastegates in Evahboost, Maguire
>
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