question for the propellor heads...
#1
question for the propellor heads...
so I tried the magic mach sterndriver... lost over 500 rpm speed is the same though.. way too much prop and slip is 9%
So with 310 hp swinging it to 4000 rpm at 60 mph.. how much hp and I going to need to swing it about 5200 rpm?? and what would speed be?
Boat Avanti 22 3500ish pounds
Current motor 7.4 mpi 310 hp
Prop mach stern driver 24x14 4 blade (labbed, cup added cut down from 14.5 to 14
So with 310 hp swinging it to 4000 rpm at 60 mph.. how much hp and I going to need to swing it about 5200 rpm?? and what would speed be?
Boat Avanti 22 3500ish pounds
Current motor 7.4 mpi 310 hp
Prop mach stern driver 24x14 4 blade (labbed, cup added cut down from 14.5 to 14
#6
Registered
I'd go back down on pitch to get the motor where it likes to be. The problem with props. If you like the way it handles. But at the wrong RPM. when you re pitch the prop or go to the same prop with different pitch the handling could change. I had a 87 22 avanti with a 450hp SB 1:50 Alpha. Spun a 21 3 blade at 6000rpm to 72mph.