Thebossbultsma

iTrader: (1)

Put it in the water for the first time this year after new build motor, and it just sits there and spins the prop.
I had 3 people and a full tank. So what prop should I go to.

I have a 24 foot predator viper.
4500 lbs
Full fuel
3 people.
Probably 5500 lbs with everything in the water
496 stroker.
450-500 hp guess
3000 rpms I was running 35 mph
Out of the hole It would spin or any time I got in the throttle.

Dual imco hydrolic steering with extension box
Bravo 1 drive with drive shower
1.5 gear ratio
23p mirage prop 3 blade ss
It ran 60-63 at 5100-5200 rpms
What are my next options I would like to gain a little more top speed I'm hoping to hit 70
Please help thanks a ton
Justin

Thebossbultsma

iTrader: (1)

Help

Drock78

iTrader: (2)

prop slip is high..showing roughly 18%. Id try to get your hands on a 24 or 26 B1 4 blade to test

Thebossbultsma

iTrader: (1)

Input

bbladesprops

Hi Justin,

Call us when you have time and either Brad or I will ask you a bunch of questions and try to determine the reason for the performance issues you have. From there we can offer ideas to get you where you want to be.
We have test propellers too so you can try stuff before you buy it.

Thanks,
Brett

PS, if you don't have answers to the questions.............that's ok. We are here to help, that's all

Sunrocket24

iTrader: (1)

Your boat should wiegh around 4000 fully loaded with fuel and people. I weighed mine on a scale last week with trailer and low fuel and not much gear and it was 4600lbs with a 1150lbs trailer. My boat has 400hp, a 23 pitch worked Mirage prop and runs 66mph fully loaded with people and fuel at 4800rpm trimmed way up in perfect conditions. Since you have around 500hp you need to start with a 26p 4 blade bravo and go from there. cdaniel525 has a 24/7 like us with 500hp and runs a 26p 4 blade bravo and his boat runs great and over 70mph.

Sunrocket24

iTrader: (1)

When I got my boat it had a 26p 4 blade bravo because the guy I bought it from had the prop stolen and bought the first used prop he could find. It had the original 330hp Merc engine and I could only spin the 26p to 4100rpm but would run 63mph with fuel and two people in the boat.

onesickpantera

iTrader: (1)

How deep is your prop shaft? Standard mirages will blow out easily. As suggested you can try a Bravo or a Rev4. I'd even try a Mirage Plus.

Thebossbultsma

iTrader: (1)

Yea Brett I call u today and left a message for u to call me back. But I understand being busy I'm self employed and know what it's like. If u could call me when ever or I can call back tomorrow and I would love to test out some props to see what works best and makes me happy.
616-813-1013
My main goal is to hit 70 with this boat.

It is a standard lower with a nose cone on it.

Thanks everyone for the info Realy appreciate it. Love this site for all the help u get.

onesickpantera

iTrader: (1)

If prop shaft is 4.5"+ below the bottom I would stick with a better 3 blade. Just my $.02