Blowing into CIS?
pjberr at home.com
Fri Sep 7 14:36:14 EDT 2001
I think we're talking about forced induction with the turbo/supercharger
feeding into the metering head as opposed to drawing through it.
It would seem to me that this could create a 'rougher ride' for the metering
plate, than would the draw through approach, particularly under slam-shut
pop-open throttle that blows the michelin man (hose) and pops off the
intercooler (end caps).
Might have some interesting possibilities;
turbo - intercooler(1) - metering head - intercooler(2) - intake manifold
or a sequential arrangement;
turbo(1)small - intercooler(1) - secondary intake that would open under
vacuum - metering head - turbo(2) large - intercooler(2) - intake manifold
add some extra fuel injectors, water injectors, nitrous...
Interesting - now you just need the space a Bentley has under the hood as
opposed to an UrQ!
Just a thought...
> >-----Original Message-----
> >From: quattro-admin at audifans.com
> >[mailto:quattro-admin at audifans.com]On
> >Behalf Of Huw Powell
> >Sent: Thursday, September 06, 2001 8:59 PM
> >To: Michael Gough
> >Cc: quattro at audifans.com
> >Subject: Re: Blowing into CIS?
> >> Somewhere a long time ago I read somewhere (here maybe?
> >archives?) that "ram
> >> air" doesn't work well with CIS because the flow plate
> >should be sucked up
> >> not blown up. How come? I saw a picture of a 1989 Bentley
> >Turbo R that uses
> >> CIS and the turbo blows into the flow plate. Just
> >wondering what anyone here
> >> thinks.
> >the reason "ram air" doesn't "work" is that it makes maybe .01 bar of
> >extra pressure, and then only at high speed.
> >the air plate issue is more one of turbulence, I believe.
> >it is raised
> >by a certain mass of air moving through the cone, not by "sucking" or
> >"blowing", which are of course the same thing, pressure differences
> >between two places.
> >hmmmm, not sure this reply will pass the censors!
> >Huw Powell
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