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Date: Wed, 06 Jul 2011 23:30:44 -0400
From: Ernest Christley <echristley@nc.rr.com>
Reply-To: echristley@att.net
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: fuel flow
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My tuning skills are improving.  With my dyno-prop installed, I was 
topping out at about 4,000 rpm.  The spark advance was on the way down, 
but the AFR was on the way up.  Way up.  To the point of lean cut-off.  
Right before the stumble, at 3800rpm,  I was burning approximately 
5.25gph.  At an idle centered around 800rpm, the burn was about 0.6gph.

These numbers sound reasonable to me.  Is this about what other builders 
are seeing?

I'm adding fuel across the board at the top end, and will expect a 
higher RPM tomorrow.  The big race now is to get home from work and find 
a hole between the summer storms to roll the plane out, get a logging 
run and roll it back in before the lightening gets it.  Last night, I 
got in a hurry and left both the garage door and inside door open.  The 
house filled with exhaust fumes to the point that all the fire alarms 
started going off.

The wife was *NOT* happy with me.  8*)