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Angier Ames:
According to Lycoming, my IO360B1F will gulp 1,150 lbs/hr of
air.
Now, the question is...
how does one equate lbs/hr to cfm in order to come up
with the right
size filter?
Here's a way to
get cfm.
360 cu in /2
*2700 rpm = 486000 cu in/min / 1728 = 281 cfm
This is at 100%
volumetric efficiency. If you want to be safe or have a
good
ram
induction....increase this by 10% or 15%. If turbocharged, the VE can
be way above 100%. Remember, you would like "no" pressure drop
across
the air filter, as any delta P in the intake system produces a
significant power loss. Put
as much filter as will fit. One rated at 600 cfm would "sound" good to
me. Check
to see what delta P they rate the filter at. The higher the delta
P the higher the CFM
will be. What you want is high CFM at low delta P.
Craig
Berland
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