Previously, I used to get EGT spreads around 150 deg and was getting fuel
burns pretty close to the 14gph book value. I don't know why Jay is
burning 25% more than book, and am curious if he knows why (or maybe it
was a typo?).

We normally fly at 23 squared, and lean back in order to keep EGTs within
100 degrees of each other, and under 1600 degrees. We try to keep CHTs
under 350 degrees. We usually cruise between 3500 and 6500 feet. At 3500
feet our FS-450 will indicate 15 gph at these settings.

At 6500 feet it will be closer to 14 gph.

Way back when, we calibrated the FS-450 to read "fat", in order to err on
the side of high fuel burn. I'd bet it's off by close to 1 gph, so we're
probably flying closer to 14 and 13 gph.

Can we lean back further? Sure.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"