Inboard options 6.0 vs 5.7 vs Diesel

[OSEAD23]

I want to thank you all for the information. I have been leaning on going with the 5.7MPI for most of the reasons you all mentioned so thanks for that. I wanted to make sure I wasn't sacrificing additional performance potential with the other options. I know this wont be as fast as an outboard or an i/O but a few Knots are nice on a 60mile run each way as we often do.

I spoke to some one who has designed Hulls and race boats today and he mentioned that one of the reasons the inboard pocket boats runs slower is that the pocket and prop work together like an enormous pump sucking water into the pocket and essentially causing you to carry hundreds of gallons of water with you as you move along and at a certain point the horsepower and torque as useless in creating more speed or forward motion due to this. He did mention that ventilating the pocket is something that has been shown to increase speed as it breaks the suction in the pocket.

Again I am not looking to make the boat something it cant be just the best it can I dont get to use it enough on blue bird days and it would be airborne most times on most other days because of the sea conditions.

At this point its looking like a new 5.7 mpi

Jim