Suzuki 65 DT prop question

[nate1220]

I am trying to help a friend find the right prop for their boat and motor combo. The motor is an 1988 Suzuki DT 65 the boat is a 1984 nitro fish/ ski. The current prop is a plastic 4 blade 10x13. They currently see 5600 rpms and 32 mph with 2 people a full tank of gas and fully loaded with gear. It climbs onto plane pretty quickly. They are looking to get a few more mph. They also want to go to aluminum or ss. Thanks for your help.

 

[nate1220]

Re: Suzuki 65 DT prop question

I am also wondering if they just switch to ss how much of a difference would that make or would they have to drop down in pitch?

 

[steelespike]

Re: Suzuki 65 DT prop question

The present setup is really working well.
Motor at max wot rpm, good hole shot and decent speed with a good 10% slip.
Stainless prop will cost about 3 times the aluminum.
You may want to start by being sure they aren't carrying unnecessary weight.
and that it is placed for the best speed.
The anti vent plate(just above the prop) should be even with or slightly above the bottom of the transom.
careful adjustment of the trim. for best rpm and speed.
I think the change to aluminum is fairly straight forward. Something like a Solas Amita 3 blade 14" pitch should work.
May lose a little hole shot but speed and hole shot usually don't go together.
It might improve the slip and perhaps get the boat up altitle more on the water.perhaps a little more speed.
If you want to gamble a little, a 13" Turning point Hustler may give a slight across the board improvement.
It is considered an aggressive prop thats why I suggest going back to a 13.The solas is more predictable.