RE: 48in mono hull scratch build
 

If the boat is done according to the plans there is 5 inches between the stringers. Doug

RE: 48in mono hull scratch build
 

wow excellent job very envious lol anyways i have a gas hull and was thinking of using a homelite or similar and was wondering what coupler did you use to hook up the motor to flex cable cheers

RE: 48in mono hull scratch build
 

here are some new pictures with the tuned pipe, it turns out to be very tricky to get tuned right but seems to run good when it is dialed in.

http://i267.photobucket.com/albums/i...ps569f191b.jpg

http://i267.photobucket.com/albums/i...ps978a013c.jpg

http://i267.photobucket.com/albums/i...ps91d17156.jpg

http://i267.photobucket.com/albums/i...ps861c08f1.jpg

http://i267.photobucket.com/albums/i...ps71ac4309.jpg

RE: 48in mono hull scratch build
 

and the square driveshaft of the warehouse hobbies flex shaft fit right up into the stock clutch on the homelite. 

RE: 48in mono hull scratch build
 

Thanks for that bit of info about the shaft fitting the engine. I've got a homelite project that I'm getting rolling at the moment. How do you like that drive system? What is your water pick up for your exhaust cooling? Could you put a close up of that part up?

RE: 48in mono hull scratch build
 

can someone send me the plans.
cheers Rocky

RE: 48in mono hull scratch build
 

Plans available [link=http://www.modelpowerboat.com/downloads.php]here.[/link]

RE: 48in mono hull scratch build
 

overall i like the drive system, it works perfectly for what im using it for. the stuffing tube was very easy to bend to my desired curve by hand (it comes straight) just to be safe i filled it with sand to keep it from collapsing on itsself. the hardware is all included and install was a breeze. my only small complaint was that i didnt have quite as much turning responce as i was hoping for but it was still very driveable. i made a biger rudder which just ended up causing severe cavitation when at full lock so im just going back to the one that it came with.

that water pickup just shoots water into the header to cool the pipe, im not even sure if its even working half the time but my header came with a hole in it so i figured i would use it lol

RE: 48in mono hull scratch build
 

yes i used the plans for the prowler mono hull boat

RE: 48in mono hull scratch build
 

Awesome thanks.does it have the measurements anywhere
or is there one that prints full size and you stick the peices of paper together so you can cut round it.
cheers Rocky
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RE: 48in mono hull scratch build
 

yep i just printed out the pdf's at a  1:1 scale and tapped them together, its pretty painful but hardly the most difficult part of the build unfortunately lol

RE: 48in mono hull scratch build
 

The plans are also available at: http://www.modelgasboats.com/
Doug

RE: 48in mono hull scratch build
 

Thanks for the help guys. Now im wondering if there is a way to build a tuned pipe for a weed eater engine.orjust a simple exhaust the dosent affect the performance for a weed eater engine.
Cheers Rocky
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RE: 48in mono hull scratch build
 

Read the rest of this thread, lol. Also, the sticky "Tuning the pipe and carb" at the top of the index.