Just wondering and please forgive me if this is old territory but I'm a
noob
here and a recent convert as i was looking to try to adapt fords 2.5l v6
Duratec engine for my anticipated Midget Mustang. I've probably given up
on day
dreaming about a pair of Ford big blocks for my ultimate fantasy
P-38. I'll start my 3 rotor compound turbo'd/supercharged rotaries
instead.

You guys just have too many good ideas here, anyway back to my question.
Are the mega squirt kits suitable to our uses here or not. If not is
there a
schematic around somewhere for an ecu AND maybe an emu. I have been an
avionics
tech for about 40 years and an A&P for only the last 4 years. I  still
like the
smell of solder fumes so I must still have a few brain cells left to
murder so
building my own electronics still appeals to me. Well TIA for any input.

David_Parker

The Mega Squirt is suitable and probably the best bet if someone
wants to build their own computer EFI.

Paul Lamar
G'Day Paul,

 From what I can recall opinion seems fairly evenly divided on the merits
of
carburettors and fuel injection, however the importance of carby heat
seems to
get ignored and I haven't noticed any provision for it on any of the
installations I have seen here. Are rotaries immune from carby ice, or
have i
missed something?

John Evans
The FAA will not sign off on a AC carb here in the U.S. unless it has
carb heat.

I have never brothered to draw something up as it is quite simple
to copy certified aircraft carb heat designs. God knows we have plenty
of exhaust heat to work with :)

Paul Lamar

Not sure that is true. Just looked at an RV-12 -- no carb heat on the
Rotax 912S.

Joe Spelz

That is dangerous. I am not familiar with that engine.
It could be hidden. Due to evaporation of fuel the AC intake
manifolds generally run ice cold.

Paul Lamar

In my experience with Rotax 912/912S (about 3000hrs) the only time ice was
an issue was in the first five minutes of running, on the first flight of
the day, in temperatures slightly above freezing. Once the engine had warmed
up, the heat rising up off the engine into the manifold and carbs seemed to
stop the carbs from icing. I can not recall ever experiencing icing with
these engines in the air. Of course I am not advocating not having carb heat
and not testing for its correct operation before every flight.

John

I assume the carb is on top of the engine while the typical
ac engine the carb is on the bottom. Heat rises.

Paul Lamar