what size and pitch prop would be best for top end

[K9 eagle]

i have a 19' seebold eagle tunnelhull with a 2.4 merc on it and i was wondering if anyone knew what prop would be best i have a 15x30labed cleaver but i can only get about 6400rpm at 92mph does any one have any suggestions. thanks kaynan

[outboards4life]

I would say thats pretty good considering what your setup is.

[bildit4u]

If your tach and speedometer are accurate and your gear ratio is 1.87, that puts your prop slip @ 5%, thats good, 10% and less is what you try for. One other thing is the prop for sure a 30 pitch.

[K9 eagle]

hey thanks for replying soo quick. The prop is definately a 15x30 lab cleaver its off of my buddys euroski but i think my boat is too heavy would a 14x32 be better or same difference.I also have a 15x26 chopper it runs around 75-7700rpm and around 88-90mph. The 15x30 cleaver bites too much for the power to weight ratio, i cant get it to scream with out going to high on the plate or the trim and it blows out. thanks again kaynan

[pyro]

What gearcase are you running?

Is the motor a 2.4 200, or a Bridgeport? ("is the block painted black?")
A 200 will make peak power at 6000-6400 rpm, Bridgeport peaks at 7000+.

14 or 14.5 x 30 would probably be a good one to try. Run the little 32 anyway, if you can spin it 6200+, you'll run some good speeds. You'll likely find that it won't turn over 6K unless the air is really cool and dry...

[K9 eagle]

it is a bridgeport efi with a 7800rpm limiter in it

[pyro]

I'm also running a Bridgeport EFI. I got my best top end with a 14.5 X 30 lab cleaver, 92.5 in the 7000-7200 rpm range (hard to watch the tach with the pucker factor). You should be able to spin a 30p no problem. Maybe too much diameter, who knows?

What gearcase and/or cone are you running?

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[K9 eagle]

u think 14.5x30 or 14x30 cleaver would b best i would like to stay just under the limiter. how heavy is ur boat? i know wut u mean (pucker factor lol) its hard to watch the gps,tach,and the water pressure,and the wind she get a lil bit light when its gusty. but the only time i can get ne rpm outta the 15x30cleaver is when i point it straight into the wind because i am borderline gettin enough lift with the rpm.

[pyro]

What gearcase and/or cone are you running?

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What gearcase are you running?



da dee da... da dee da...

Post a new tech thread called
"prop suggestions for Seebold Eagle with Bridgeport?"
There's a few more out there, and I'm sure you'll get some replies from someone who knows a few good props to try. I would jump at the chance to try a 28p ET, and you should too...

[Wolverine]

Check with Drag120. He's had a Seebold as his lake boat for quite a few years now. I'm sure he's tried plenty of different powerheads........uhm, I mean props on it.:D

[pyro]

Ah yes, Tom can definitely offer some setup advice. He's spent many hours in his Seebold with a Bridgeport behind it.

http://img503.imageshack.us/img503/6313/dsc2126vw9.jpg

[K9 eagle]

How Would I Go About Getting A Hold Of Tom With That White And Gold Seebold