In order to extend ground testing and tuning of the engine in 35+C (95+F) I rigged some water spray onto the water exchanger.

Water temps now stay below 150F even at high load, and to my surprise Oil temps stayed below 180F (I thought I might have to spray water on the Oil Exchanger but not required)

I reduced the pitch of the prop to allow a static rpm of approaching 7500rpm and without much missing she spun up OK.

I feel like Im starting to get familiar with the EC2 now and between MODE 2 and 3 and just manual mixture adjustments she runs from idle to 7+K alright.

One observation is that at around 6-7K RPM both the Dynon Skyview as well as the EM3 fail to read the RPM correctly.

Now they are both taking their sensing from Injector 1. 

The EC2 of course gets its trigger signal from the Renesis CAS’s (main and backup) and there is a mod on the back of the EC2 board that I took was conditioning of the CAS signals.

Has anyone else had the EM3 read rpm incorrectly at high RPM?

After balancing our prop, I’m hoping to begin playing with the EC2’s closed loop mode, and then Timing with new BR10EIX plugs.