Another interesting article was a dyno test comparing
mechanical fuel injection to EFI on a IO-540. Page 20.

Forthe IO-540 EFI system at 24 inches of manifold pressure and 2400 RPM
the BSFC  was .483 and the mechanical fuel injection
was .525. About what Continental claims for my carbureted O-470
in my C182.

A 250 HP p-port two rotor BSFC properly leaned is .47.

About the same.

Paul Lamar

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