How's the power?
I don't know how much fuel this engine has through it (Joe Mitchell?) because ZDZ test ran it, and Joe said he test ran it for me, just to be sure, too. But, it already has tons of power. Much more bottom end than I had with the 3W-170CS on stock mufflers and the DA-170 on RE3 tune pipes. Top end on the DA-170 on tune pipes might have been better, but if this motor has not been broken in that may change. And, the bottom end may still come up a ton, too. I'm new to the ZDZ-180 so I'll have to get some experience still. Also, I'm running a Mejzlik 32-10 (original version), and they don't really honk planes around to begin with. Once I get a prop jig for these smaller bolts I'll put on a Falcon 31-12 and this engine may very well have more top end than I experienced with the DA-170 on tune pipes, as well, we'll see. I was generally running a Falcon 31-12 on the DA, and that prop has a nice bite, much more than the Mejzlik 32-10 original. So, anyway, I don't have enough experience to really say a lot right now. Other than it has way more power than any other 170cc class engine with a mejzlik 32-10 on it. It started really quick and easy out of the box, it starts really quick and easy right after a flight, or after it has completely cooled off, or anywhere in the middle (i.e., no vapor locking). It idles very low for a new engine, and VERY smooth... much smoother than the DA and even the 3W. Transition is great on the stock mufflers over the tune pipes, but that's to be expected. I love, love, love the 9360 throttle servo! Oh, and everyone is commenting on how good it sounds. I've always liked the sound of canisters best, but I like this sound too.