[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