John;
Four 550’s ought to get you over
300 hp with fuel pressure of 43 psi.
Al
-----Original
Message-----
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of John Slade
Sent: Thursday, March 24, 2005
8:51 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] going lean?
Chrissi (building rotary
Cozy IV) just sent me an email that has me wondering.
She suggested that I
might be going lean at high power because I'm running 4 * 550 injectors instead
of the stock 2 * 550 and 2 * 850. I hit a "brick wall" in the power
curve at a certain rpm beyond which I get a "stutter" feeling which
listeners on the ground report as a "popping" sound. I've been
thinking this is the edge of detonation and avoiding it. Maybe it is, but
perhaps it's because the injectors have topped out rather than because of
excess boost.
Anyone have a couple of
850 injectors I can try?
John (I need more power,
Scotty)