Nice post Bearorso
Yes the DI outboards are very under stressed. They are not actually bigger then comparable 4/S, most are smaller.
With engines designed for a HP output instead CC's they have kept the 2 stroke large to produce torque.
As an example the DI 200HP makes 40HP more between 3000-45000 rpm then a 225HP 4 Stroke.
To make things confusing the manufactors are aloud a 10% variation from the advertised HP.
A big bore DI 2/S Dirtbike would be able to pump out 65HP very easy and be as smooth as silk.
That thing would eat up any track, be lighter and more reliable then any 4 stroke.
