72" mono build
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72" mono build
Just thought I'd share some of my pictures of my new build.
Just finished the bottom on it tonight. Still haven't decided on color scheme yet but leaning towards copper fadded to black.
Power will be twin 25cc watercooled modded homies eventually replaced with zen 260's when the bank allows. Running gear is "in the mail".
This is my first build so please be gentle...
Just finished the bottom on it tonight. Still haven't decided on color scheme yet but leaning towards copper fadded to black.
Power will be twin 25cc watercooled modded homies eventually replaced with zen 260's when the bank allows. Running gear is "in the mail".
This is my first build so please be gentle...
#2
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RE: 72" mono build
Just curious - if the bank down not allow for twin zenoahs why not run a single zenoah. Single Zenoah will likely move that boat better than twin homies and probably cost less (especially considering all the extra hardware you will need). It will be easier to set up, easier to tune, keep you on the water having fun longer, and still be upgradable if you thirst for more speed down the road.
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RE: 72" mono build
Looking good mate nice start,do you allready have the homies? if not id go with a zen that would push it well if you keep it light that way if you need more speed down the line you can get your zen modded for arround $100 to a full mod yes there are guys who will do it for those prices you just need to know where to look or maybe you allready know someone .
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RE: 72" mono build
yes I already have the engines and have already ordered the drives. unfortunately can't turn back now. What I've read on here that a 72" boat was too much for a single zen which is why I decided to go for twin setup. I also like the thought of having dual motors too.
As far as dollar to dollar, I figure that it would be a $20 difference from the single zen to the twin homies including all the extra gear. I could change my mind I suppose considering I have a 55" cat to build. I could use the gear in that one. It's also easier for me to drop $40 here and there instead of dropping $210 for an engine and $125 for drive system.
If it turns out to be crap, well then I will drop in twin zens and it should wake it up.
I do however appreciate the advice and keep it comming!!
As far as dollar to dollar, I figure that it would be a $20 difference from the single zen to the twin homies including all the extra gear. I could change my mind I suppose considering I have a 55" cat to build. I could use the gear in that one. It's also easier for me to drop $40 here and there instead of dropping $210 for an engine and $125 for drive system.
If it turns out to be crap, well then I will drop in twin zens and it should wake it up.
I do however appreciate the advice and keep it comming!!
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RE: 72" mono build
Hey it will run just fine with the homies no problem there at all just thought if you hadnt allready bought them the zen would be cheaper in the long run.The one Vassilis built has a 50 cc wacker type motor in it and he got over 45mph with that so id say your twin homies would be arround the same speed maybe.bonzi have zens on at $200 at the moment or did just in case you wanna go that route .
mart
mart
#6
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RE: 72" mono build
Got some more done on it today. I have to wait for my gear now so that i can place everything. Once the pipes are here, i can decide what to do for a radio tray. Just have to finish installing the noodles before i put the top on (just placed on there for a representation of course!!) Fiberglassed the inside of the keel. Does anyone think it's wise to glass every seam? strength is one thing but it could make it heavy. I was thinking glassing the stringers along where the motors will be but what about the other joints?
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RE: 72" mono build
theres probably no need to glass in the stringers because you will have to cut them out anyway to fit the homies side by side but its a good idea to do the bulkheads and where the sides join the bottom and the part of the stringers that wont be cut out
#9
RE: 72" mono build
The only part of my 48" boat that I glass is the keel. The rest of the boat I just coat with epoxy. Looks like you're doing a nice job so far. This boat has a 23 degree deadrise which is fairly steep. The problem with twins is that the further out from center you have to go with the drives, the higher they are in relation to the keel. If they are too high they won't be as efficient. Doug
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RE: 72" mono build
well at a deadrise of 23 deg, each shaft will be 3-9/16" apart and 11/16" above the keel (C-T-C). At 22" for beam, this doesn't seem like a lot. But I'm far from an expert!!
Also, where does one buy collets online? Looking for one with a 5/16" female tread and 1/4" round insert...
Also, where does one buy collets online? Looking for one with a 5/16" female tread and 1/4" round insert...
#11
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RE: 72" mono build
Just an update on a dead thread...
I have the sides, keel and stringers all installed and glassed. I sealed and fuel proofed the engine compartment, glued the top and installed some hardware and water fittings.
I have had a few setbacks unfortunately.: Due to missinformation from one vendor, the hardware I had originally ordered won't work. (and can't return it cuz i can't find my receipt [:@]) So, now I am going with my original plan of whobbies spd-2p drives and aluminum 80mm props. And I want to quickly say that their service is excellent!
I used Zippkits turnfins, TSBoats thru hull water nipples and outlets, and Aeromarine trim tabs and water pickups.
I hope to have this boat in paint by end of next weekend as I hope to get the boat wet the weekend of May 18th.
Enjoy my messy pics!
I have the sides, keel and stringers all installed and glassed. I sealed and fuel proofed the engine compartment, glued the top and installed some hardware and water fittings.
I have had a few setbacks unfortunately.: Due to missinformation from one vendor, the hardware I had originally ordered won't work. (and can't return it cuz i can't find my receipt [:@]) So, now I am going with my original plan of whobbies spd-2p drives and aluminum 80mm props. And I want to quickly say that their service is excellent!
I used Zippkits turnfins, TSBoats thru hull water nipples and outlets, and Aeromarine trim tabs and water pickups.
I hope to have this boat in paint by end of next weekend as I hope to get the boat wet the weekend of May 18th.
Enjoy my messy pics!
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RE: 72" mono build
Lookin' good. I noticed that your turn fin mount is parallel to the side of the boat. You want the turn fin to be perpendicular to the bottom of the boat. When the boat leans over in a turn, the turn fin will be straight up and down in the water.
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RE: 72" mono build
The turn fins on my boat used to come to a very sharp point at the bottom and I have cut myself on them a few times. I've since taken the sharp point off of them and made the bottom flat. They are still sharp on the fron edge, but not pointy which caused the most trouble with grabbing things and poking me.
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RE: 72" mono build
I wouldn't. I glassed all the seams of the hull on the inside & left the outer hull bare of glass, I gave it 2 coats of resin & then clear coated for a woodgrain finish.