From: "steve Izett" <flyrotary@lancaironline.net>
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Subject: First full power testing of Renesis 4 port
Message-Id: <D01892C5-ABE0-4E4B-805C-6BCE8B97C930@gmail.com>
Date: Sun, 24 Jul 2016 07:29:07 +0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Hi Guys

Did the first high power testing of our setup yesterday.
Renesis 4 port EC2 RD1-C electric pitch adjustable prop on Glasair Super =
II RG
Engine sounded good.
On a fine pitch setting she spun out to 7200rpm.
On a course pitch she gets just over 6000rpm.
Our intake manifold is a modified original Renesis.
The length is shortened, Secondaries Valve removed, but kept the =
Variable Intake Valve.
Primary and secondary runners are different lengths now unlike the =
original setup unfortunately.
At 6000-7000rpm opening the valve provides another 200rpm so dynamic =
charging appears to be
working despite the primaries being shorter than the secondaries.

Confession time!
Experienced a small fire from the exhaust where I had some insulation =
rap.
Turned out I had a very small oil leak from the sump had dropped a small =
amount of Mobile#1 on the exhaust wrap which then ignited.
Had extinguishers at the ready so no damage done. I subsequently found =
quite a few of the sump bolts were loose (poor on my part).
Hopefully no more leaking oil. Thankful to find the problem on the =
ground while testing!

A few issues came up and I would appreciate your brains and wisdom:
1. RPM above 6000 the Dynon Skyview and the EM3 stop reading correctly - =
both take their tach input from Injector #1.
   Now if it was just the Skyview units I=E2=80=99d look at the signal =
level. But the EM3 is also playing up and has me stuck pondering at =
present.
   It seemed to go intermittent but and perhaps come good above 7000rpm?

2. On the course pitch, as soon as the rpm gets to 6000 and I continue =
to open the throttle, it goes from smooth to massive missing and rpm =
drop.
   Any thoughts here?
   Related to point #1 above? Don=E2=80=99t think so as on fine pitch =
rpm doesn=E2=80=99t read properly but spins faster with no missing.
   Don=E2=80=99t recall mixture when this happened.
   I think its related to load?
   What could cause this?
   a. Fueling - I tried adjusting mixture but with no success. Thinking =
I need to experiment more with mixture when this massive missing occurs.

 b. Spark? Coils are D585=E2=80=99s
   c. Manifold pressure fluctuations feeding back into EC2 creating =
fueling issues?

Thanks in advance for your thinking on my problems.

Steve Izett
Perth Western Australia=