This plane is nearly ready to go! I'm just chasing down a few engine quirks.
I spent quite a bit of time adjusting the secondary ignition timing. I started with the static setting which ran okay, but my RPM drop when I checked the two systems was still a little high. I tried checking and adjusting the secondary timing with a timing light and a helper, but that didn't make much of an improvement, as didn't really seem all that safe either. Finally I settled on just running the engine, moving the trigger cap a tiny bit, running it again, and repeating that until it stopped running better and started to run worse. Then I moved it back to where it seemed the best. I think that's the best I can do on the ground!
The other thing was an oil leak at the turbo outlet. I've sealed the oil sump to the turbo at least twice, and it'll stay sealed for a while but it seems to spring a leak if I do a high power runup. I think it's probably more of a high temperature issue than pressure related. Sonex sent me a little adapter plate to put between the turbo and the sump, and I also bought the highest temperature sealant I could find, and so far it's been good! Sonex also asked me to check the ports in the oil pump as some had been setup wrong, but mine was all good. I guess that could have stopped the pump from scavenging oil correctly and cause oil pressure to increase in that return line, but I don't think that was the problem anyway.
We'll see if it leaks again!
