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Date: Tue, 13 Feb 2007 23:50:05 -0500
From: Bill Bradburry <bbradburry@allvantage.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Second Engine Start
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Thanks for the inputs, guys!

To help clear up some of the questions...

I have a Performance Prop installed.  76X88  Same prop that Ed first 
tried on his plane before he cut it down to 74X88.  It causes the canopy 
to come crashing down on my head!!  :>)
My intake manifold was made by cutting the stock Renesis manifold off at 
the level of the secondary injectors and fabricating a transition on top 
of it that has a 75MM throttle body controlling the air.  The throttle 
body  shuts ALL the air off when it is closed.  I am thinking that is 
not a good thing.  I plan to set the idle setting when I get it to run 
smoothly.  However, when that 3" (76MM is 3 inches) throttle body is 
cracked a little, the engine wants to be let out!!!  :>)
My exhaust is 3" in diameter!  A little over 4 feet long.  I am using 
the stock Renesis manifold which I cut off just forward of the #2 rotor 
outlet.  I welded a 3" SS 180 degree bend on it and installed a flexible 
bellows then it goes out through the back of the cowl and empties just 
about under the rudder pedals under the plane.  That is where the flames 
were observed.
I will try some more tuning tomorrow.

Bill B