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Message
[Steve Brooks] I have the 2.17 drive, and I'm seeing about 5300 RPM's
in climb. I don't have a MAP gauge, but rather a boost gauge. I
could calculate the MAP, but on take off, I'm setting the throttle to 5 lbs of
boost, which seems like plenty. Full throttle will produce about 8 lbs of
boost, with substantially more power.
Hi
Steve. I was just curious how much power you were making, to see if that
was part of the reason you were having trouble cooling. At 5 psi, you
would be at 40" MAP if you're starting out near sea level, so you'll
certainly have more heat to deal with than the average (NA) engine, but not so
much that it should be unmanageable. A little more tweaking with the
ducts will probably get you where you need to be.
[Steve
Brooks] I tried that, and have it as lean as it will go on mode 1. I
haven't tune it above 4000 RPM's yet. I can't hold the plane still with
the brakes, and haven't been in the air long enough to do it there. I
may be able to resolve the rich running at high RPM's. Mode 3 tuning
doesn't seem to be working.
As much as I joke about
"backwards plastic planes", the only real disadvantage they seem to have is the
inability to tie them down for testing. I can't personally imagine not
doing full throttle tuning/testing on the ground. There must be some
way to restrain that thing enough to tune it on the
ground.
As for
mode 3, it's always worked for me, but it does seem to take a few more
pokes at the button than I would have guessed. In other words, it doesn't
seem too sensitive. BTW, what injectors are you running to be so rich with
only 30 psi of fuel
pressure?
Hope your cool morning
flight works out well so you can get some air
time.
Rusty
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