48in mono hull scratch build
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48in mono hull scratch build
this is my first boat that i have built, found some plans online and had a homelite 25cc engine laying around. this is what i came up with. i had a lot of help fromthis forum building my boat so i figured i would post up these pics so new guys/girls can get agood idea of what all is involved!
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RE: 48in mono hull scratch build
here is a link to the first run of the boat, the engine was still not quite tuned right!
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RE: 48in mono hull scratch build
thanks, its a pretty fun cruiser. im hoping a 3 blade prop will give it some more pep this spring, but i haven't done any research so any input on a potentially better prop would be helpful!
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RE: 48in mono hull scratch build
Making it a surface drive will improve performance quite a bit,exit the transon 1/8 -1/4 " to right of keel and 1/2" up from the keel to centre of driveline and im sure you will see more performance.
Mart
Mart
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RE: 48in mono hull scratch build
Try a X470/3, or Prather 275 or 280.
You might need another shroud, you cut that one a bit low. Once you start working the engine harder you need the cooling coming off the fan going across the head, forward motion is no where near enough air flow.
You might need another shroud, you cut that one a bit low. Once you start working the engine harder you need the cooling coming off the fan going across the head, forward motion is no where near enough air flow.
#10
RE: 48in mono hull scratch build
The props Mike mentioned should work on a surface drive. You could also try an X482. The X470/3 would be my first choice of the props mentioned. however they are all too large for you current subsurface drive. The boat was meant to use a surface drive. Doug
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RE: 48in mono hull scratch build
I ran a drive like that for a while, most of the top blade will still be out of the water.
Trying to find 12 year old pics on hard drives is the problem now. [8D]
Trying to find 12 year old pics on hard drives is the problem now. [8D]
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RE: 48in mono hull scratch build
just out of curiosity how does the octoura x470/3 compare to the prop shop B6717/3?
i see that the B6717/3 has a steeper pitch (4.48) but with a smaller diameter (67mm), but not really sure how the specs stack up with the octura's specs.
http://www.bonzisports.com/store/product_info.php?cPath=1_52&products_id=79
http://www.bonzisports.com/store/product_info.php?cPath=1_52&products_id=87
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RE: 48in mono hull scratch build
ORIGINAL: chipbreakr
Great job, If you would like to build a tuned pipe for it and have plans that I can email
Jim
Great job, If you would like to build a tuned pipe for it and have plans that I can email
Jim
it'sbeenhardtofindonethatwillfitwiththewayIhavethe exhaustrouted...
#22
RE: 48in mono hull scratch build
michaelgrout146, I can email them to you if you let me have your email address or you can download them at: http://www.modelgasboats.com/
Doug
Doug