That Ammo motor is (optimistically?) rated at ~500W continuous - you need at least that amount of power to match a .40 glow motor (my MVVS .15 is 0.7bhp = 500W). I think you need to look at a motor which can manage 500-600W easily - the Ammo will fry trying. This is a .32 equivalent (650W max).. it might do. http://2dogrc.com/ecommerce/os/catal...ts-p-2437.html. Otherwise the .46 equivalent (900W max) but that may be overkill.