Excellent response, Having rebuilt many high powered gas engines and even a jet engine, I appreciated your disertation.

I have another simple question. When I repitch the props by 2" will the govenor keep the RPM from going tooooo high? I have never run the engines up to WOT not in gear.

And if I understand it, unlike gas and jet engines RPM in diesel is not really the bad guy its power/load. So I can increase RPM to a point and actually make the engine breath better and get complete combustion. Thus increasing mileage, reducing stress and carbon buildup. This not normal to either gas or turbine engines. This is an insight I was missing and thank you for a new mindset!

thnaks again garyd