This post is several months after first flight. The main issue I saw during the first flight was my % power indication was way off. It read something like 40% at a very high power setting. This ended up being a simple configuration issue with my fuel flow setup. The vendor had set it up for the “Red Cube” that they provided, however my source was from the SDS ECU. The k factor was off by quite a bit. I spent some time getting this correct by filling the tanks, taxiing and taking off on one tank, and then cruising at a constant power setting at the same altitude for 30-60 minutes, then switch back to the other tank. The amount of fuel burned in that time was compared to what the EFIS said for fuel burn.

For the most part, I followed the EAA flight test cards as a guide for what tasks to perform. I also ran high power settings for quite awhile to make sure I properly broke in my engine, so some of the test cards had to wait several hours.

In the meantime, I did some work to address some baffling issues and adjust mixture with the SDS ECU in controlling CHTs. It took some time, but by the end of phase 1 flight testing, I was happy with my engine temps.

No other major issues surfaced during the test time. The plane flew well with no bad characteristics. I finished up my flight testing on September 17th, 3.5 months after making my first flight.