I
thought 27-28 was the right fuel flow for the IO550N?
Ron
Raby
The GAMI folks have done extensive
testing on the big bore Continentals. Since they have the data to back up
their recommendations I would trust them over anyone else, including
Continental. Just be sure to get the whole story before you follow any suggestions.
John Deakin’s articles are a good place to start http://www.avweb.com/news/pelican/182544-1.html
Steve
-----
Original Message -----
Sent: Tuesday, July 13,
2010 5:51 AM
Subject: [LML] Fuel Control
problem
On another point – you say
you lean to 1300 degrees on climb out. I am surprised by 1300
degrees. (Although I know that EGTs can differ according to installation,
and since I have a 10:1 compression engine my EGTs should be lower.)
I arrived at 1300 degrees
as recommended at the Advanced Pilot Seminar after Sun n Fun last year.
Assuming you have a fuel flow of at least 29 gallons per hour (they say 30 is
better) on a stock IO550-N, look for the hottest EGT on the hottest cylinder
(mine is #6) during takeoff to about 150’ agl on a near sea level
runway. They say this is a safe number to continue to lean to during
the climb.