----- Original Message -----
Sent: Thursday, August 02, 2007 10:52
PM
Subject: [FlyRotary] Static RPM
Ok, I know I have read about this somewhere, but
not sure where or what I read means, but I finally ran my engine up to full
power and was wondering what kind of numbers I should be seeing.
Even though I had some intermentant wire issue
(SUPRISE) in that as I got over about 4500 rpm the rpm would flash in the
hundreds and then go to zero. When I throttled back to below 4500
ish, the reading came back. This happened a few times.
However, later when I did it, the readings
were better and I was able to run the rpm up to about 5500 rpm at full
power on the Mistral Intake (so about 2534 rpm at the prop). It seem to
reach full rpm at about 3/4 (to 4/5) of full throttle and then mostly
stablized. Sounded smooth even though I am still running rich. It
seems to run much better with the mixture at about 9 oclock and bogs as I
bring it to the noon position. In auto tune it seems to be
trying to lean but kinda slow and if I try to keep it at the 12 oclock
position it seems too rich, so I think I will need to do some manual
leaning and then go back to the autotune. I am idleing pretty smoothly
at about 1000 rpm.
Is this RPM range acceptable? Is this good;
bad? What should I expect? I was nervous to run it up like this, but
I just kept telling myself that I am not gonna be throwing a rod or blowing a
jug <g>. If you remember I do not have coolant temp reading right
now, so I closely monitored the oil temp and kept the run short, but I was
curious as to what I could run it up to. Thanks again.
All the best,
Chris