"O. Sami Saydjari" wrote in
:

Actually, I am able to run about 40 degrees lean of peak and the
temperatures at cruise are about 1380. Fuel flow is about 11-12 gals
per hour.

Okay, here's something "interesting." You are running pretty high power
settings there... up probably around 85% (at 12 gph LOP). At LOP it's
probably okay to cruise that high (because the pressure pulses are lower at
peak, and more spread out). How's your CHT's?

I typically cruise at 10.5 gph (75% power LOP), with the RPM back down to
around 2300. My EGT's will be in the 1450+ range. CHT's will be down
around 300 - 340 or so. Interestingly enough, the time I see really high
EGT's (trying to push over 1550) is low power, down at about 25" or less.
An annoying side-affect of our fixed-timing engine ignition systems.

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James M. Knox
TriSoft ph 512-385-0316
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