The V 20 hits 50mph tops, but any faster ?

[THEFERMANATOR]

The MIRAGE is a large diameter prop. There are 2 different styles of them though, the new ones with the XHS and the old ones without. The blades were changed some as well with the hub change. When you step up in diamter it will act like you went up in pitch. I went from a 15 pitch 14 5/8 diameter prop that woulkd turn up to around 6400 with a load in the boat to the 17 pitch 15 1/2" diamter that will barely hit 5400 fully loaded(5600-5800 light load). The mirage stylke blade is very efficient so it acts like an inch or 2 of itch just by going to it. I would try a 19 MIRAGE and see what it does, also you need to get somebody to help you check your engine height while running.