asmund:
Suggest to go directly to the source, manufacturer, dealer ect. for a for sure answer. Had a mvvs 49 with pipe on a fun fly3-d. Did not like the lack of power and sold it to a friend. Few months later had a chance to fly my old fun fly with the mvvs. It ran very well in the same home environment and prop size. Think thay may take a while to run in where they are happy, but thats my only experience with this motor, although there are a few in the engine cuppboard waitilng for a project/ But they are pilon engines I want to try. Trying to make a fast canard euro plane type go fast?