i have a 1995 42 foot fountain lightening that i am about to put 2 525s in it. innovation marine told me they should be making around 525 to 535 hp a piece. what yall think the top speed of the boat will be when they are installed. i have 28 pitch 4 blade brovo props but can re prop boat if have to. also has shorties for lower units.

Thanks a lot
C roussel

My father has an 07 42 light with merc 525's. Solid 80 mph gps boat.

His is heavy with genny, a/c and heat, and lots of fuel. Standard lowers also.

lo 80's light on fuel and gear.

the 07 is staggered and has a step hull mine doesn't i was expecting mid 70's

It should run 80 plus but your going to have to change props.

what props do you recommend

My suggestion would be 27p Hydromotive 4 blades, assuming u have 1.50 gear ratio

what type of props are yall using on yall 42 fountains

28 four blade Bravos on mine. 75 MPH GPS at 5400. Bill

74-75