|
I finally got another software program (after
computer crash) and was able to cut down the size/pixels of digital photos I
took, so here is one of the Atkins straight intake manifold that I just
installed on my 13b powered SQ2000 canard aircraft. I'm sure there are
more optimum manifolds out there, but at least this one produced 5000 static
rpm's with my 3 blade 64 x 78 Performance wood prop. Since the picture was
taken, I have installed all fuel lines, throttle cable/bracket, re-routed wiring
to injectors and throttle positon sensor, etc. to keep them away from heat,
spark plug wires, etc and to just "neaten up" the installation. The
stainless steel heat shield is spaced about 3/4 inch above the stock cast iron
exhaust manifold, and after 3 engine runs at WOT, the bottom of the throttlebody
was only warm to the touch immediately after shutdown. I expected it to be
pretty hot, but was pleasantly surprised that it was relatively cool. Perhaps
because the fuel and air flowing into the throttlebody helped to keep it
cool? The part that really made my day is that there is no after shut-down
fuel drip. That was a big concern of mine. Problem solved.
After I fly and enjoy the plane a little, I may pull the manifold and have some
of the intake areas filled with aluminum weld and take a dremel tool to it to
match the ports better, but I think for now I will leave the tinkering to Rusty,
and after I fly/enjoy it a bit, go back to tinkering. Thanks to all for
the suggestions regarding prop size. Most suggestions are that I go ahead
and fly it and record all the performance numbers (now that I can achieve full
throttle), and go from there. I may be looking for a problem that doesen't even
exist. Paul Conner
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.296 / Virus Database: 265.6.2 - Release Date: 12/20/2004
|