"Morgans" wrote in message
...

"Robert M. Gary" wrote in message
ups.com...
But runnnig your engine at 30" at 15,000 feet is MUCH harder on the
engine than running 30" at 5,000 feet. The engine runs hotter and
harder.

-Robert

65% is 65%, is 65%. All equal, no harder. That is the point of turbo
norm. The engine has not got a clue how high it is. MP is the same at
sea
level or 15 thousand.

The only argument is the temp. Keep it cool. it is not that hard, nor is
it rocket science.
--
Jim in NC


Yes the MP is the same but the CHTs will be much higher. Basically you are
trading better performance for higher temps. Turbo Lances can't make 75%
power above 16,000 on warm days without CHTs well over 400F. It really
isn't possible to produce a lot of power at high altitude without higher
temps. I think that Robert's point is that there is a tradeoff.

Mike
MU-2