I have the 10" SkyView Touch system in my Experimental Van's RV-8 with a Lycoming YIO-360-M1B, so not the same as your Certified, Continental setup. But I had similar observations with the new %Power calculations.
Prior to first flying with the SW that included the new %Power calculations (v16.0.1), I manually changed the "Engine Type" from the "LYCOMING - DEPRECATED" (previous calculations) choice to the new "LYCOMING" choice, to take advantage of the new percent power calculations. The Certified folks may not be able to choose between the old %Power algorithms and the new ones.
I noticed that the % Power numbers were higher than what I was used to seeing at a given power setting. To explore this, several times in-flight I went back and forth between the "LYCOMING - DEPRECATED" to the new "LYCOMING" choice at the same power settings. I found when ROP the newer % Power calculations gave roughly 3% to 4% higher readings. I did the same comparison LOP a couple of times and the %Power numbers were the same between the two "Engine Type" choices.
My first impression is that the new ROP % Power calculations indicate too high, and the previous %Power calculations are closer to the truth, but I need to do a little homework first to be sure.
It would be helpful for Dynon Support to describe the improvements that were made to the %Power calculations and explain why the think they are more accurate.
For others that may not have seen it, years ago Dynon published the article below on how they calculate Percent Power. Unfortunately, several figures no longer show in the article.
The only thing worse in an airplane than no information is incorrect or misleading information. Unfortunately, engine percent power is one ...
preflight.dynonavionics.com
I'd like to see Dynon update the article and restore the missing figures and explain how they now calculate % Power, or at least explain the differences between "Lycoming - Deprecated" and the new "Lycoming" choice.
