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Posted for "Craig Gainza" <cgainza@msn.com>:
FADEC sets Best Power at takeoff. CHTs will climb very rapidly and continue to do so until FADEC sees CHTs in the 430-440dF range. This results in extremely high ICPs and unnecessarily high CHTs that are not experienced in non-FADEC controlled engines.
In my brief (one month) experience in flying my Fadec equipped IV-P, I have
not seen CHT's greater than 400df in any configuration. My baffling is well
made and there is no silicone in place.
Craig Gainza
IV-P TSIOF 550
[ Walter and http://www.advancedpilot.com/ spend alot of time and energy
running an outstanding class on how to get the most out of a engine
with fixed timming... they show how fast CHT goes up with Internal
Cylinder Pressure and how to use lots of fuel to slow the burn rate
and lower ICP.. kinda variable timing with with lots of gas. :-)
FADEC can move the spark event while maintaining a perfect .072 F:A and
perfect 16^o ATDC peek ICP. while they kinda cheat and do it
with a *huge* number of maps, it is a solid way to get best power
out of a motor.. but I'm only a student and will yield to either
instructor. -Rob ]
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