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Perry,
This sounds like a great diagnostic tool.
Since I just bought a Pocket PC and have no laptop I'd be real grateful if you ported to run on the PPC.
Thanks,
Jim
--- Original Message ---
From: Perry Casson <pcasson@sasktel.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: [FlyRotary] EC2 MAP Table
To try diagnosing a "runs rough at certain throttle settings" problem on my plane I wrote a little windows application that can talk to Tracy's EC2 and display real-time parameters plus upload/download the MAP table to my laptop. Here's a spreadsheet of the resulting high and low speed MAP Tables. No wonder there are some rough spots, after seeing this I'm surprised the engine runs as well as it does. I'm finding fixing rough spots hard to do from EC2 panel being as soon as the engine hits a rough spot the manifold pressure changes and it hops over to a good MAP value. Why the table looks as wild as it does is a mystery to me but the general trend to lean from default at low manifold pressure and richen the mixture a bit at high power is correct. I'm going to try smoothing these numbers by hand and uploading something that looks a bit more sane.
This software (EC2Params.exe) and instructions on how
to connect a laptop to a EC2 will be posted after I clean things up a bit. Perhaps I'll port it to PocketPC as well if there is interest.
Perry Casson
Glastar/13B
http://eaa154.dhs.org/perry
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