posted 09-05-2009 08:33 AM ET (US)
I could use some help picking a prop. Here's my curren performance info:16' flat bottom
40HP 4 stroke efi Mercury
10.5x13P factory aluminum prop
6" jackplate with cav plate 2.25" above bottom of transom
Still maintains 23psi water pressure at WOT
1 person 6000 rpm 32 mph
2 people loaded 58-5900rpm 30-31 mph
speeds are with gps
It is stern heavy so I like the stern lifting properties of these 4 blades. Surprisingly the jackplate didn't seem to hurt it as far as stern heaviness. It definitely drives and runs better with the plate.
Boat also has nauticus smart tabs with REALLY helped the boat alot in ride quality and planing with heavy loads. Overall I'm happy with the performance, but I think it slips too much in the mid range. I run 4500 at 21mph cruising and I think it should do that speed at 4100 or so.
I have read such great reviews of the trophy sport and scb4 on here that I'm leaning heavily towards one of them. Any suggestions? Any help would be greatly appreciated.