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Message
> If you leave it open, the wastegate stays shut, and
pieces of apex seals start departing the engine :-0
Greg Richter welded his wastegate shut and used a pop-off
valve.
I wonder what his pop-off valve is set
for. Unfortunately, pop-off valves are of limited use on an airplane,
since they're differential devices. In other words, setting it at 3
psi means that it will open when the pressure is 3 psi greater than the outside
air pressure. At sea level, that gives me just the limit
that I want, but it only provides about 6,000 ft of altitude compensation.
Say I wanted to limit the turbo to 9 psi to give myself sea level
power up to 18000 ft. Now I would also have the ability to make 9 psi at
sea level, which will likely blow the engine. Even as a safety
device, the pop-off valve isn't ideal. While it saves the engine, it
still allows the turbo itself to overspeed, and
possibly self-destruct. Realistically, that probably brings you down
in a plane, probably in flames from the exhaust
leak.
> As I mentioned, I'm working with manual control only at this
point.
a push pull cable to the actuator?
A push pull cable to the wastegate
lever. There is no "actuator", or I am the actuator
:-)
> The reason is that I have 9.7 rotors
me too
Bruce estimated that I shouldn't go
over 3 psi of boost at sea level, or 36" MAP at any
altitude.
>Gotta get a real oil cooler first.
Hope
you're arm gets better soon. Is it you're right arm, by any chance?
Thanks, but I doubt it will.
These injuries take a long time to heal. It actually happens to be my
left arm, but since I'm left handed, that doesn't help me much. What does
help is that left handed people have to be ambidextrous to some extent,
since the world is made for right handed people. I'm still waiting for
those left handed scissors I was promised in school :-)
Cheers,
Rusty
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