Props

[wishiknew]

So I have 23' cheetah scorpion it has 454 mpi came with a 24 p bravo 1 prop changed to bronson hill 24 p labbed prop . was there last weekend the boat had hard time getting on plane and top rpm was 4200 . can a labbed prop make to much to spin???

 

[RiverDave]

need more info than that.. but that doesn't sound like the prop for you..

I would think you would be spinning a 24 B1. or a 26 B1 if you have the higher HP 454

 

[2FORCEFULL]

So I have 23' cheetah scorpion it has 454 mpi came with a 24 p bravo 1 prop changed to bronson hill 24 p labbed prop . was there last weekend the boat had hard time getting on plane and top rpm was 4200 . can a labbed prop make to much to spin???

that's the problem with both props you tried.. b1's pich is never right and who knows what they did to the labbed one

i'd get a solas from cheetah bob

 

[NicPaus]

The 24 you had most likely cut down more to a 22. I would try a 22 Bravo 1 with that setup. The 454 MPI is 310 hp. I had the same setup in a 22'. For top speed a Mirage plus 23.

 

[guest hs]

Sounds like your original prop was either pitched down or some diameter cut out of it.

 

[guest hs]

What RPM did your engine spin with your original b-24

 

[wishiknew]

What RPM did your engine spin with your original b-24

5200

 

[Stainless]

that's the problem with both props you tried.. b1's pich is never right and who knows what they did to the labbed one

i'd get a solas from cheetah bob

2FF, I've seen you mention a couple of times B1's vary in pitch out of the box. Is that based on real evidence? Not trying to call you out or anything, but the B1 is probably the most popular performance prop in the world.

 

[NicPaus]

2FF, I've seen you mention a couple of times B1's vary in pitch out of the box. Is that based on real evidence? Not trying to call you out or anything, but the B1 is probably the most popular performance prop in the world.

I have tried several some brand new and they all vary slightly stock. Most take them in for balance and clean up when brand new.

 

[Stainless]

I have tried several some brand new and they all vary slightly stock. Most take them in for balance and clean up when brand new.

OK, I just thought it strange that Mercury would have significant variance in their process's.

 

[FreeBird236]

2FF, I've seen you mention a couple of times B1's vary in pitch out of the box. Is that based on real evidence? Not trying to call you out or anything, but the B1 is probably the most popular performance prop in the world.

They're not off enough to cause a thousand RPM difference, and if anything a labbed prop spins faster. I agree one of these props is modified or mismarked, most likely the B-1 because it's too big for the 454.

 

[NicPaus]

OK, I just thought it strange that Mercury would have significant variance in their process's.

Not much. But some have tried so many props a 100 rpm will show.

 

[BajaMike]

My ONE RULE of PROPS.....''on hot day, with a full boat (people, ice, beer, drinks, full load of fuel), if you can't quickly get to rated RPMs (5,000 rpm at least for any Mercury product), then you are over propped....

Get a lower prop.

 

[wishiknew]

My ONE RULE of PROPS.....''on hot day, with a full boat (people, ice, beer, drinks, full load of fuel), if you can't quickly get to rated RPMs (5,000 rpm at least for any Mercury product), then you are over propped....

Get a lower prop.

:thumbsup:thumbsup:thumbsup

 

[wishiknew]

left or right ??

 

[guest hs]

Back in the late 90's we use to sell Mach propellers the 4 blade Stern Driver was awesome but the blades were all different pitches from the factory. We would send them to our local prop shop he would repitch each blade so they were the same and they were great props. I have sold 100"s of Bravo I 4 blades and have never seen a problem with pitch out of the box. Take your original prop in and have the pitch and diameter checked all Bravo I 4 blades are 15.25 diameter.

 

[wishiknew]

is the way the prop spins left or right

 

[PaPaG]

is the way the prop spins left or right

If you ever come pick up your genny I have a few SS props you can try that I had for the Vector all new or almost new condition...I think I have a 22, 23, 24

 

[Trash]

Don't try to compare two different 4 blade props (Bravo 1 vs Hill). The blade shape/design are different. Regardless, the Hill prop is too much for your application.

 

[wishiknew]

Don't try to compare two different 4 blade props (Bravo 1 vs Hill). The blade shape/design are different. Regardless, the Hill prop is too much for your application.

I agree different prop is in order

 

[2FORCEFULL]

2FF, I've seen you mention a couple of times B1's vary in pitch out of the box. Is that based on real evidence? Not trying to call you out or anything, but the B1 is probably the most popular performance prop in the world.

did it with kevin from R&R prop shop in Henderson...

and yes it is more popular... but not as good as a signature or solas...

 

[2FORCEFULL]

Back in the late 90's we use to sell Mach propellers the 4 blade Stern Driver was awesome but the blades were all different pitches from the factory. We would send them to our local prop shop he would repitch each blade so they were the same and they were great props. I have sold 100"s of Bravo I 4 blades and have never seen a problem with pitch out of the box. Take your original prop in and have the pitch and diameter checked all Bravo I 4 blades are 15.25 diameter.

they also were a smaller diameter and better hole shot

 

[2FORCEFULL]

The 24 you had most likely cut down more to a 22. I would try a 22 Bravo 1 with that setup. The 454 MPI is 310 hp. I had the same setup in a 22'. For top speed a Mirage plus 23.

what about a rev 4 23p

 

[NicPaus]

what about a rev 4 23p

I have one and it was to much prop for the 454mpi. It worked for the weekend as someone stole my mirage 23 and neighbor had it off his old American Offshore. It works well with my 496ho. I ran a 24p b1 this weekend which would be to much prop as well for the 454.

 

[Ibeplumbing]

Why don't you just cal hill and work with them on the prop. I talked to them recently about props, they told me that they would get me whatever I needed. And they would send me a set to buy and try, if they didn't work, they would take them back and get me another set, whatever it took to be right. My friend uses them all the time, same deal

 

[2FORCEFULL]

Why don't you just cal hill and work with them on the prop. I talked to them recently about props, they told me that they would get me whatever I needed. And they would send me a set to buy and try, if they didn't work, they would take them back and get me another set, whatever it took to be right. My friend uses them all the time, same deal

are you talking about ron and chad?

 

[2FORCEFULL]

I have one and it was to much prop for the 454mpi. It worked for the weekend as someone stole my mirage 23 and neighbor had it off his old American Offshore. It works well with my 496ho. I ran a 24p b1 this weekend which would be to much prop as well for the 454.

I ran one on my 454 mpi 210 closed bow

 

[wishiknew]

I have one and it was to much prop for the 454mpi. It worked for the weekend as someone stole my mirage 23 and neighbor had it off his old American Offshore. It works well with my 496ho. I ran a 24p b1 this weekend which would be to much prop as well for the 454.

what about a 3 blade 23 ?? and does it spin left or right ?

 

[McRib]

what about a 3 blade 23 ?? and does it spin left or right ?

You can buy any prop left or right hand spin. I'm sure you need a right hand though. That's the most popular set up. Except for me. I'm the only single engine Boat owner i know with a left hand drive. Lol

 

[wishiknew]

You can buy any prop left or right hand spin. I'm sure you need a right hand though. That's the most popular set up. Except for me. In the only single engine Boat owner with a left hand drive. Lol

Thank You Mr Ribbs

 

[NicPaus]

what about a 3 blade 23 ?? and does it spin left or right ?

Right. My 22 open bow came with a 3 blade Mirage plus 23. Ran it for 10 years like that until someone stole it. Then started trying props and the 22 bravo 1 4 blade worked best all around. I have bought 6 props since for new boat and have a few of the old.

 

[NicPaus]

You can buy any prop left or right hand spin. I'm sure you need a right hand though. That's the most popular set up. Except for me. In the only single engine Boat owner with a left hand drive. Lol

You can switch the cable. Some boats run better with a left. I recall Marko doing it with his Howard. Just saw him at Sundance still has it.

 

[McRib]

You can switch the cable. Some boats run better with a left. I recall Marko doing it with his Howard. Just saw him at Sundance still has it.

This is true. Mine is left because of how my offshore controls are mounted. They are not mounted like others I have seen and I believe it to be because of the cup holder that is right there. Standard mounting would have put the throttle arm end right over my cup holder eliminating the use of it.

 

[Flying_Lavey]

I'm not sure what to suggest but I did notice that most everybody is using their Vee bottoms for reference to the OP's original question and it might not make a huge difference but the OP has a Mod VP tunnel. Typically a prop on a tunnel will require different characteristics than one on a Vee.

To the OP, the labbing process is just when a production prop is sent to a shop to get dialed in. What is involved in that lab process can include anything really. Blades thinned, cup added, diameter cut-down, blade shape tweaked, diffuser ring cut-off or if there is enough material added on, etc.... or it could be none of those and someone just had all the blades trued up and cleaned up.

 

[Ibeplumbing]

are you talking about ron and chad?

Ya I forgot Ron and chad are a seperate shop.

 

[nowski]

I have a Mercury Bravo One 24 Pitch that was labbed by Bronson Hill, your welcome to try it out. If the shoe fits maybe we can work out a deal...

 

[wishiknew]

I have a Mercury Bravo One 24 Pitch that was labbed by Bronson Hill, your welcome to try it out. If the shoe fits maybe we can work out a deal...

Thanks