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Can run
more than an hour under 2300 RPM with occasion bursts up to 35 MAP for up to 15
sec without overheating. The big key in that was running 80% water
antifreze and some water wetter.
I bet cleaning
out your housings helped a little too
:-)
But 5 min
after shutting down the turbo side of the cowl is too hot to touch on the top
and I can smell resin. It gets a little soft to tap on it and
it is starting to look a little mottled and maybe yellow (if I let my
immagineation run away).
Sounds mighty
familiar. You could install a hatch, and also insulate the cowl, which
would probably be the easiest method. I had thought of trying to
enclose the turbo in a thin stainless box. The idea was to have a
blast tube that fed the turbo enclosure, and an air outlet that left the
cowling. A small fan could also feed air to the box for use on the ground
after shutdown. Of course, trying to build all this around
everything else is a problem in itself, but maybe just a fan at the top of the
cowl, that ducts are out of the cowl would
help.
I also had problems
melting my throttle cable, hoses, and the paint on the
mount. The turbo was in the factory shield, and these items were
1-2 inches away, AND covered in firesleeve. For the record, firesleeve
isn't very good for this purpose. Thin stainless is better. I
recently bought a roll of .002" 321 stainless foil from McMaster Carr, which has
been dandy for my current setup where the exhaust pipes run less than
a half an inch from the cowl, and mount.
New Problem: RMI
tach no good. According to my RMI engine monitor I have about 4300 RPM at
24 MAP. At 29 MAP I still only have about 4500 RPM and at 35 MAP I am
still at 4500 RPM static. I dont buy it because it sure sounds different
(faster). So I have to install an accessory
Tachometer....
How is the RMI
hooked up? Have you asked them about the problem? I'd be
surprised if they can't find a way to help make it work. Also, there isn't
a lot of rpm increase for that last 25% of throttle travel, though the sound
will change. It might not be working as badly as you think. Do
you know any RC guys with optical tachs they use for their planes? That
would be one way to check it.
Old problem still
not fixed: Low RPM: to keep it running it needs to be rich, so much that I
billow smoke down 400 yrds of hangars. It comes out in billows every 2-3
seconds. Above 2200 RPM there are no problems (never were). Will be
trying some 460cc injectors instead of the 550 primaries I currently
have.
Sounds like you
might have a sticking injector. A good set of 460's will
probably help in more ways than
one.
Dave Leonard (In
red because Rusty alway takes the blue)(secret manifold my A## - lets
hear the plan)
Nothing secret about the intake. The secret is
what I'm going to do if the intake doesn't get me the power I want
:-)
Rusty (just another "boring"
day)
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