Dugaru
Well Known Member
I've got a GRT Horizon EX and EIS4000. I've input the data for the percentage power lookup table as suggested by GRT here:
https://grtavionics.com//media/Percent-Power-Entries-Lycoming-O320.pdf
And I then get a calculated percent power on my EFIS. Problem is, the percent number I'm getting seems to be extremely optimistic. As just one example, the other day at 24 inches and 2400 RPM at 4500 feet, I was showing 99.9 percent power. If I'm reading the extremely complicated chart in the O-320 manual correctly (big "if".....) my engine is making considerably less power than that. Which also matches with my limited understanding of the physics involved.
Has anyone tweaked this lookup table to get better results?
FWIW, I've got an O-320-D1A, carbureted, with a Hartzell CS.
Thanks!
DMG
https://grtavionics.com//media/Percent-Power-Entries-Lycoming-O320.pdf
And I then get a calculated percent power on my EFIS. Problem is, the percent number I'm getting seems to be extremely optimistic. As just one example, the other day at 24 inches and 2400 RPM at 4500 feet, I was showing 99.9 percent power. If I'm reading the extremely complicated chart in the O-320 manual correctly (big "if".....) my engine is making considerably less power than that. Which also matches with my limited understanding of the physics involved.
Has anyone tweaked this lookup table to get better results?
FWIW, I've got an O-320-D1A, carbureted, with a Hartzell CS.
Thanks!
DMG