BrendellaJet
10-25-2007, 07:04 PM
I recall hearing that a Heritage impeller was a copy of the legend impeller. Does anyone know how the legend impeller compares to a berkeley in terms of size? Im turning a Heritage A 5600-5800 RPM. Im making 750-775 at that RPM range.
Its in a 21 foot boat. Im trying to figure if Im turning the impeller as hard as I should be. Peak power is 825 @ 6800 but Im making 800 @ 6100 so I want to determine if I should trim the impeller to get the extra power(6100- no point in going way upstairs for 25hp. Hole shot is good, I wouldnt mind sacrificing a little if I was going to gain some top end.
Interested in everyones thoughts. Boat handles this power very well. Considering 250 shot of NOS just for fun :D
Its in a 21 foot boat. Im trying to figure if Im turning the impeller as hard as I should be. Peak power is 825 @ 6800 but Im making 800 @ 6100 so I want to determine if I should trim the impeller to get the extra power(6100- no point in going way upstairs for 25hp. Hole shot is good, I wouldnt mind sacrificing a little if I was going to gain some top end.
Interested in everyones thoughts. Boat handles this power very well. Considering 250 shot of NOS just for fun :D