I’m planning on trying a 19” 3 blade. I hope I don’t lose even more hloseshot with a 3.
Mmm. You might to be honest. Sometimes I really wish I could be there with these things. Have you any idea of the drive ratio ? Just so I can compare it to my boat ?
Mine is only 18ft (I’m guessing yours is 20ft maybe) but mine is as heavy as most 20ft boats at nearly 1400 kgs. She has a 5.0 mpi and Alpha 1.47 ratio. Also has an exhaust system and a cam, but genuinely don’t think that does much until up the top of the rpms so the lower rpm and performance should be similar I think.
With a 19” my boat is pretty average at planing. A good mono skier can get up from a deep water start but anything less than a good skier can’t (like me). It will get in the rpm range (4600-5000) no bother when trimmed down...trim up and efficiently and it will then come onto the flat running pad, air out over 60 mph and limit.
Witj a 21” it will be about as sluggish again and will fall at the low end of the rpm range but trim up and it will see mid to late 60’s gps and will occasionally but less frequently hit the limiter.
If your boat has the same gear ratio but with perhaps a larger and less performance orientated hull...perhaps even a 19” is a wee bit too much in most circumstances?