I own one that I'm going to use to replace a Z445 in an existing airplane....
I've only run it on a test stand and I can tell you that I have one hellu'va time getting it started using a spring starter.
It does start very easily with an electric strater, though. I'm still a bit confused over this, as they intimate in their ads that it's easily started by hand.....
Never!!
I literraly broke one spring starter attempting to make it run the first time out, and afterwards just resigned myself to the electric starter.........
As far as power...when It did run, it turned almost 7000 rpm with a mejlik 24-10......
Hope this helps.
