----------
> From: Shaun.Hendricks@bergenbrunswig.com
> To: dakota-truck@buffnet.net
> Subject: DML: Breathing easier (was Air Inlet)
> Date: Friday, October 30, 1998 10:44 AM
>
> An opinion...
> I feel this is true with non-smooth bore tube systems. The turbulence
> created by the tube itself becomes the air's own worst enemy
(reciprocating
> pressure waves look real neat under particle scopes and are hell on
airflow).
> The best possible tube solution would be a hard, large diameter, smooth
walled
> (polished) tube with gentle bends and a "honeycomb" laminar flow enducer
at
> the entrance to the bore ( This could even be made into an air filter)
and a
> reduction/compression venturi right before the TB. The idea is that
Laminar
> Flow air moves smoothly around obstacles and such because it is all
moving the
> same direction. It would move right around the TB's butterfly valves
more
> smoothly than even the 14" FIPK and with a slight compression velocity
factor
> 'slamming' into the cylinder causing a very slight increase in
compression
> ratio (what it would be, would have to be determined: I don't know, it
would
> just be very slight). At Higher RPM's (steady air draw) the Laminar Flow
> system would provide smoother air to the engine, but at lower RPM's the
14"
> FIPK would probably be superior due to the "immediate" availability of
the air
> that Jules is talking about (the tube would have to pressurize). If I
were a
> drag racer I'd want the FIPK, but if I ran my Dak around at high speeds
or
> towed a lot (High RPM's at speed, under load), I'd want a Laminar Flow
system.
> The entire problem is, nobody makes such a system and it would require
some
> wind tunnel time, and hard experimenting with an engine to get it exact
for
> each TB setup. If anyone were to attempt to do this kind of thing, I'd
> recommend making a matching TB as part of the whole deal, maybe even an
> optimizing intake manifold. You'd be talking a $1000 for such a setup.
hmmmm.... interesting post...
jam'n
88888888
> .
This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 12:10:51 EDT