X-Mozilla-Keys:                                                                                 
Fredmoreno@aol.com wrote:

I researched the Orenda engine program at some length, and concluded it is a
good example of how not to do an engine development program.  I guess it is
not surprising given the degree of government involvement.  Suffice it to
say, it is a poor example of what can be done, but is a good example of how
much you can make an engine weigh if you are not careful.  Latest reports are
firewall forward for everything, the package comes in at about 1200 pounds.
Ugh.

In contrast, watch the evolution of the Eagle 540 V-8 funded by a group of
entrepreneurs, and completing final dyno runs to complete fine tuning of the
control computers.  Initial rating will be 500 HP from 540 cubic inches with
growth potential to 750 HP.  The technical team leader is an experienced
engine guy with both auto and aircraft engine experience.  He has seen the
best and worst of both. They have been careful about details like keeping the
coolant passages large and well placed in the heads to achieve better
cooling, and refined intake manifold design for better performance even
though the engine uses twin turbos.  Weight is far below the Orenda.  They
are keeping a low profile, but you may see one at OSH next year.  Initial
target is experimental aircraft.  Much better odds if you leave it up to
Southern California ingenuity and aircraft/hot rodding experience, not the
government, to get the job done right.

Fred Moreno

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