I believe it is because we are operating on the lean side of peak. My settings for LOP 65% are 27.8”MP/2500RPM/15.9GPH. Don’t attempt without GAMI jectors or the like…
Doug
N654DM 1350TT
Douglas W. Johnson, MD PA
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Guy and Jill Foreman
Sent: Friday, November 02, 2012 7:51 AM
To: lml@lancaironline.net
Subject: [LML] Why is my fuel burn so high in my IV ????
Reading some of the posts on the LML about IV/IVP drivers. Just wondering how they are getting around 18-19 GPH at cruze power?
I have a straight IV with a TSIO-550-B. I usually fly around 10K feet, using 28in MAP, 2400 RPM, Leaning to 1550 TIT, and getting 21.5 GPH fuel burn.
What am I doing wrong? How is everyone else getting there fuel flow so much lower?
Any advice would be much appreciated.
Thanks,
Guy Foreman