wrote:
: In my limited experience with an O-360 in an Archer I generally planned on
: burning very close to 10 GPH at 75% (of 180 hp), running as lean as possible
: for smooth engine operation. In our Arrow with an IO-360, I burn about the
: same, or maybe just a tiny bit more, at 75% (of 200 hp). The IO-360 thus
: has a lower specific fuel consumption (the per-hour fuel flow required per
: hp produced). Reason: I think the main one is that the better fuel
: distribution on the FI engine allows operation with a leaner mixture.

That must be it. Although the book calls for 10 gallons/hour for an O-360, if leaned to "best economy," it's
more like 9-9.5 at 75%. I know I get between 8-8.5 at 65% on my O-360.... not comfortable leaning all the way when
running at 75%, so 65-70 is as high as I'll go.

-Cory

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* Cory Papenfuss, Ph.D., PPSEL-IA *
* Electrical Engineering *
* Virginia Polytechnic Institute and State University *
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