SW26 Jet conversion

[Diegoboy]

Thanks Saleens.
What do guys think about my next jet project?

I hope to use this hull

[ace028]

I think that would be cool, do you think that it would have too much drag with the rear of the boat being sucked down by the jet? being a hydro it wants the rear up out of the water right? or would you have the jet to where it would lift the rear? I'm a noob so I'm not really sure, but it would be really cool though.

Twin jets would be cool also lol

[Quicksilver]

I see where you pick up the rocks lol

lol, you'd be amazed I've run the boat probably 30 times now and only busted one impeller on that stream(I've run that stream maybe 10 times). I broke one other impeller on the smaller lake. Best part about really fast water, is big rocks. However big rocks= major repairs once and a while

Thanks Saleens.
What do guys think about my next jet project?

I hope to use this hull

Pretty sweet, my only concern is getting the cog right. I dont see much room in that hull, meaning, with a big jet drive in there, where's the batteries go? I could be wrong, I'd have to break out a ruler and the calculator to check. I would think in a drag hull, you'd want the cog back pretty far.

[Diegoboy]

Quick,
What is the "cog"?
I know the following...

Suction tube
Stern tube
impeller tube
shaft
impeller
guide vane
thrust nozzle
control nozzle

I guess I still have a lot to learn too.

[Quicksilver]

just center of gravity. lol perhaps center of balance is what I really mean....balance front to back

here's another one Stator......the vanes behind the impeller that straighten the water into a ........jet....also is the reason you dont get prop walk...that sounds wrong but yeah no torque.

reverse bucket
variable nozzle
variable intake
cavitate......btw why does spell check always say that's wrong?

[Diegoboy]

Ahh! C.O.G. I thought... well you know what I thought.


Mine doesn't say it's wrong.

[Eodman]

Hmmmmmm I wonder how A Mean Machine would handle dual jets! Can we see another cat build down the road?

[Quicksilver]

any GPS readings yet?

speaking of c.o.g. I'm going to try folding over my flat 8cell packs, to get the c.o.g. farther back.

oh and a tip for anyone installing a jet drive. I've realized/learned for maximum speed, you want to mount the drive as far back as possible, which means throwing out the installation instructions. The optimum place for the intake is as close to the transom as you can make it. Which will leave much of the drive hanging out the stern, but it wont cavitate as much and will decrease your wetted surface.....therefore more speed :)

[AtlanticChallenger]

I love jet drives to death. One advantage that jet drives have in my pond is that they suck up, obliterate, and eject the plant life that floats around in the water.

The same plant matter just wraps itself around the props of my Villain and my SV and puts a quick end to their performance. This was quite a surprise, because I thought that it would have worked the other way around.

[AtlanticChallenger]

Oh, and yes, a tub is a bad place to test a jet boat, because unlike the prop models, there will be a bit of a lag in between when you hit the throttle, and when the thrust kicks due to the jet purging air from the system before receiving a solid column of water. Made that little mistake a few times myself.

Of course, when your boat is almost 60 inches long, consequences can be a bit more difficult. In my case, it rammed the front of my tub, and simultaneously ejected about 3 gallons of water up out of the tub onto the floor. Incredible.

[Quicksilver]

Oh, and yes, a tub is a bad place to test a jet boat, because unlike the prop models, there will be a bit of a lag in between when you hit the throttle, and when the thrust kicks due to the jet purging air from the system before receiving a solid column of water. Made that little mistake a few times myself.

Of course, when your boat is almost 60 inches long, consequences can be a bit more difficult. In my case, it rammed the front of my tub, and simultaneously ejected about 3 gallons of water up out of the tub onto the floor. Incredible.

yeah I've done that exact thing before. not cool, I've yet to be able to hold on to my boat at full throttle no matter what I do, unless of course it's out of the water.

my boat just really doesnt like leaves. The stems are just too tough and end up catching on the stator.

[Diegoboy]

Keep us posted wickedgmc

[lomdel]

Would the SW36 hull also work for a similiar but bit larger build? What does the ride pad on the SW36 look like compared to the 26? What jet drive unit and motor would you suggest for the 36?

[Diegoboy]

The SW36 doesn't have the flat ride pad like the SW26 & Fastech.

[lomdel]

That motor mount, was it the original SW26 one or did you have that made? If made, where or by whom? I refer to the one in the original post.
Have you tried the reverse mechanism on this set-up?