what are you using for pitch setting?
My 912is set between cruise and climb gets me about 115TAS in level flight. Im getting 5250rpm static WOT. I found that if I set the pitch any finer I would Redline the engine too easily once level.
Mine is set to 17 degrees right now but no flight time on it. I got about 5300 static at WOT. That's with the 75" prop. Interested to know what you are running Eddie.
Geek
Gary (Geek) Phenning
Leavenworth (Not the Prison), WA
Kitfox STi N68SG