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1. 10:49 PM - AA-1 O-320 upgrade Air Box/Intake Geometry (Steven Jackson)
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| Subject: | AA-1 O-320 upgrade Air Box/Intake Geometry |
--> TeamGrumman-List message posted by: "Steven Jackson" <steven.jackson14@adelphia.net>
TG,
Can someone explain to me how the size of the intake, air box, etc affects
the way the engine performs--i.e.. is there some type of equation that gives
you the ideal volume or dimensions of the air intake/air box for a given
engine?
The theory on the table is that the stock AA-1 air box is too small for an
O-320 conversion. If so, what would be the ideal size? If a bigger air box
is placed on the plane, would the actual intake on the nose bowl need to be
bigger as well? Would there be an increased drag penalty if the intake was
bigger? My mechanic says there's not much of a ram air effect with a simple
piston plane via the intake on the nose bowl. He says that the engine sucks
in as much as it needs and doesn't get "forced" air. I'm assuming that
there would be a point where the hole that the engine is "sucking" through
would be too small for the engine?
Just looking for some theory and practical application,
Steven Jackson
N1434R
L22
Yucca Valley, CA
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