Certainly an interesting concept. I have to be lerry. The internal combustion engine has been around for over 130 years, and there have been some mighty intelligent people dealing with this problem of HP out of high speed inline four engine. (They seem to ignore the M139 Mercedes 416 HP @ I have 6,750 RPM inline four turbocharged 2 liter engine.) I agree that the pneumatic valve train is very interesting, with elimination of the cam shaft...but more reliance on computers in a marine engine??
I am puzzled by the goal of reaching a million dollars in a go fund me project. A million dollars is a drop in the bucket in development and production of a radical engine--even a single race car engine. There are many sources of funding for the many millions it will take to go to production.
They have a 30 HP 2 cylinder engine--as proof of concept...I was running 30 hp 2 strokes in 1956... Does this 2 cylinder engine run? If so , why no photos of it, especially on a boat...
The other issue is sustaining a marine engine, especially one of 654 hp with 7,5 Liters. The "Seven" line of engines went out of business in the last couple of years, as did Evinrude. ....
If this engine is so radical and successful, then why is it not in race cars? (Or manbe it is a copy of a race car engine). BMW made a 1280 HP 4 cylinder racing engine which could turn 9600 in the 1980's...