Subject: A / F ratio
From: rotaryeng
Date: 6/27/2012, 9:37 AM
To: AAAA Put this in the To box 


All,      testing the motor to find that it is running smoothest at an A/F ration of
almost 13 at 2200 rpm. This is on a PLX meter and appears a little lean.  What say
the experts??    Neil.

That's about right for p-port idle. What is the manifold pressure. I assume engine
RPM. All engines like to run a bit rich at idle.

The p-port is no great shakes at idle. What is it for WOT with the airplane well tied
down? Mixture, manifold  pressure, EGT, and RPM? That is the real proof of the pudding.

Paul Lamar

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