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Bob,
The small centre ports are the primary ports and serve a useful function, as their smaller and provide greater inlet velocity for low power and idle. However their not available for the P-ports and PP operate OK if not as good as the two side ports, at lower RPM.
At a certain RPM both ports are open to the rotor providing better breathing, I don't know if the one larger side port is large enough to do it alone - better to leave them both there OR use a PP.
George (down under)
Richard,
My concern with not using the center ports would be not having the second injector per rotor. I you place two injectors per tube, in your plan, it might work since we aren't getting max RPM anyway.
Bob Tilley
Albany, Ga
-------------- Original message ----------------------
From: "jrhopkins" <jrhopkins@windstream.net>
has anyone used blocked off the center two apertures and used the front and rear
intake manifolds only? i do not understand the need for the center split intake
for aircraft use. thanks richard
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