Just stuff a K&N cone filter in the 3 inch opening and duct
tape it
in
place. You'll lose a bunch of power but you can still fly.
Air pressure will help hold it in.
That last idea is what Mooney does. Put a slide valve in the ram
air
scoop
and a tennis ball one way valve in a filtered hot air pipe
feeding one
end
of the plenum. Once the ram air valve is open the tennis ball one
way
valve will close.
Paul Lamar
Will you draw such a system? Please. Jerry
Here is a slightly better version.
BTW if the snorkel ices up this ball valve automatically opens up
providing heated air to the intake system.
Paul Lamar
Ok, Paul you know that even race engines often use air filters now.
The usual criteria are similar to the radiators large area thin
section. Jerry
if you want to use a filter you need to have a alternate air source,
as the
filter may clog with ice. The best method is to use a large (volume)
air
box with the major volume after the filter. The modern cars use a
style
that indicate that the designers are familiar with K & L. The filters
are
large area flat rectangles with a wedge inlet, followed by a large
clear
exit box. Jerry since you will probably need a round cylinder to fit
it in.
The small tapered filters will be way to restrictive. You need a
larger
volume. The bigger the better.
Bill Jepson
Not if they want to win :) Drag races are sometimes won on .001
seconds.
On a 24 hour race the winning car is 5 feet in front of second place.
What is the percentage difference in performance? :)
Paul Lamar
Is it permissible to have the large area filter/big box described
above, located remotely from the intake plenum and supplying air to it
via hose or duct ? Jerry
Sure. In the rare case you are flying off a dusty field you don't need
the last ounce of performance. BTW use the 2.5 inch R&B Wagner alloy
ball. This will work well with the mail box.
Paul Lamar
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