The Kingtech K80 turbine has arrived in good time. Thanks Barry from Kingtech. Now to shove it in there. it's longer, so there will be some notching goin' on in the inlet ducting to allow the fuel line and maybe the wires to exit the engine without sharp bends. No big deal. I ran into a weird problem with the GSU also. It wouldn't power up with the plane's receiver/ECU power system switch. I'd have to unplug and replug it to get the display to come alive. I chased it down to the Fromeco Cricket voltage monitor, which has a capacitor array on it as brownout insurance. That causes the system to power up slower as those caps charge. The GSU won't power up with the slow rise time. I say "slow", meaning maybe 100msec or so. The GSU rejects that power up profile. So I have to switch it on twice, once to charge the caps, and again a couple seconds later to fire up the GSU too.