Love the builds! The jet could definitely use way more prop. Considering the torque that 6 cyl makes, you could step the prop way up and get better speed and lower rpms.
@gingerashly42403 жыл бұрын
The props in those jet units are already pretty good, a 2:1 ratio would suit it better as that jet unit is meant to run at around 7k rpm or higher
@phildawe71723 жыл бұрын
thanks for sharing this video of your projects fellas. Really enjoyed it. And ya must be doing something right, because they stayed afloat 👍
@brendannunya773 жыл бұрын
Another pissa episode, bloody love the Aussie ingenuity! Hey Gibbo, what’s worse then lobsters on your piano? Crabs on ya organ 🤣🤣🤣🤣
@benhawke72313 жыл бұрын
On the pontoons weld a flat plate that sticks out like 4 inches on top front of the pontoon that's wider than the Pontoon as a splash plate. Kinda like a solid mud flap. On that old inline six. I would take out the thermostat and let the water to just flow straight through. That should help with cooling. Also on that straight six I'd put like a CVT drive on it. Kind of like a snow machine or side by side. So that way it'll move the jet drive faster than the RPMs of the engine when cruising. You can also adjust the spring and weights of a CVT so you can have it at Max gearing at like 2500 RPMs. Maybe you can find a wrecked side by side to steal the CVT drive off of. Also you may need a steeper pitch on the impeller.
@jisimmons3963 жыл бұрын
Boats have different power requirements than cars; upshifting while cruising will only overload the engine and make the overtemp issue worse. While a 3000 lb. car may only require 20 or so HP to maintain 75 MPH on level ground, a 3000 lb. boat would require 300-400 HP to do the same speed. Consider too, that water is about 800 times more dense than air, so it's going to produce around 800 times more drag on the wetted surface than if it were a car driving down the road. I digress. To "change gears" in a boat, you need to change the prop/impeller. Under certain very special circumstances, a multi-speed transmission works in a boat, but that clapped out shit heap is far, far from any of them. There's also a ton of other factors in play here... poor pump design (note all the aerated water behind it and the leaks at the transom), mismatched impeller to the engine, overweight and underpowered engine, not enough RPMs, ect... It was a fun project I'm sure, but that thing needs so much revision to be improved, they're better off starting with a clean slate.
@stelitejet3 жыл бұрын
Love ya work guys..... Really been looking forward to seeing them in the water!🤣😁😎 absolute gold!👍🍺😁😁😁Keep up the good work... How good!
@xEagleeye65x3 жыл бұрын
T in a water inlet into the exhaust and extend it’ll help keep temps down also if you can find a steeper pitch impeller it’ll help a lot they can be pretty cheap
@TheStuartstardust3 жыл бұрын
Impeller is also quite sensitive to gap, efficiency goes up is it fits 🤓
@danieledwards10813 жыл бұрын
I was thinking it could do with an overdrive box in there to spin the jet drive faster, the old Holden 6 just doesn't rev near hard enough
@brushitoff5033 жыл бұрын
Ha ha that was hilarious I love it! Fab up some water deflectors on the front of the pods & make them pointy to cut through the water better
@harrypatt77082 жыл бұрын
Always wanted to whip up a mini “speed” boat I called it as a kid haha! Pretty much exactly what I invisioned making, love it boys.
@davessparetime833 жыл бұрын
Jet drive impeller with much higher pitch will get the rowboat up on plane easier. Also put a ride plate under the Jet drive. The Jetski pontoons need a splash shield from lower front edge up an along the boat hull.
@westmonroe-r1v3 жыл бұрын
Well done guys excellent work great welding skills there nice work.
@sixtyfiveford3 жыл бұрын
Look like a blast to drive.
@georgescott75563 жыл бұрын
my brother's from down under love those freaken boats!! you all are freaken crazy!🤣 watching from missoura us! you all stay safe! there's alot of crazy shit going on all over!!😉🖖
@nazzcar73 жыл бұрын
How long until you slap a turbo on that red motor 😂
@Lukedormer3 жыл бұрын
You guys do lovely work.
@kiwifruit45793 жыл бұрын
New wear ring in jet unit, should only just be able to get a sheet of paper between the impeller and the wear ring, any more it will cavitate.
@baileytrapp45393 жыл бұрын
That is some insane fab and welds going on 🤙
@gingerashly42403 жыл бұрын
Goes great, I got set back on a few things on my boat but hopefull I can finish it soon
@phildawe71723 жыл бұрын
for the boat. maybe slapping a plastic or alloy fin/paddle that clamps around the jet nozzle and points down would increase steering authority at low speed.
@tgfcujhb75833 жыл бұрын
Congrats on not sinking ..👍👍👍👍
@shannonoshea6443 жыл бұрын
Really wicked job lads so glad I found this channel! Maybe experiment with different pitch impellers which is basically like changing diff gears and tyre size. either way can't wait to see more on the projects when budget allows keep it up boys 👏
@TheStuartstardust3 жыл бұрын
I like the low budget - that makes it more interesting with low cost builds, where it is more skills and having fun for a little money - thats a big win 💪🤓
@tooheyzee68403 жыл бұрын
Sounds like the 202 needs an accelerator pump
@TorqHub3 жыл бұрын
If it sits, it ships! See you on Peel boys! 🍻🤣
@glumpy103 жыл бұрын
Way more savage Pitch on the Jet or Spin it at double speed with a gearing setup. I thought that would be an issue. The jet ski motors turn much higher RPM than an Old Holden 6 But you do have the advantage of torque. If you could find a 1:2 gearbox you'd be laughing or use a chain and sprockets. Great Job on both fellas. Few modifications and tweaks and You'll be right. If that Island is 50-80Km out, you are going to need a fair bit more fuel I think.
@matui69833 жыл бұрын
Needs a scoop on the water intake to help get water into the pump and a rubber impellor type pump instead of the SBC one. Proper impellor pumps can generate anywher from 20-70psi, easy enuf to push cooling water thru a 186. Plus they can suck the water up while engine is just idling.
@glennman56193 жыл бұрын
I reckon lift the pontoons a couple inches, tilt the front up a little and a point on the front. They should be awesome then I reckon.
@Ronin84513 жыл бұрын
You definitely need to rtv seal the pump assembly against the transom to prevent the leaks you have.
@ericmuhlbeier80233 жыл бұрын
You have half of it done already ... build a jackshaft and put a gear advantage via chain or belts! Start at 2:1 your steering will imorove with more water volume out of the nozzle
@handyandy3453 жыл бұрын
Yeah thats worth a subscribe.
@craigkaschan48223 жыл бұрын
Savage she make them they’d be an awesome boat. 👍
@MetalMania3DTV-TAS-AUS3 жыл бұрын
Great job on both least you didnt sink great stuff Aussie Aussie Aussie hoy hoy hoy 🇦🇺🇦🇺🤝🇦🇺🇦🇺😎🙂👍🍻🍻 cheers KC 🇦🇺🇦🇺
@TheStephenspann273 жыл бұрын
Impressive fab work. For the cooling on the jet boat, why not just tap into the jet pump for your water supply? Rather than running the electric water pump.
@tbone73323 жыл бұрын
Mate , Cleeter can keep his mini jet boats , I’ll have a “Savden” thanks 👌🏻
@mattcrick21563 жыл бұрын
Better than Finnegan’s Garage hahaha 🤣
@lilgeico71133 жыл бұрын
put a screen before the waterpump dont want to suck up some leaves
@bluejayfabrications22163 жыл бұрын
Aaaaaa the song of the majestic red motor an old mountain bike gear set and chain should do trick
@blindgarage85313 жыл бұрын
So blind garage challenge can the blind man ski behind your boats what do you reckon guys who wants to see that video great job on the boats boys when you guys taking me fishing haha
@jimclarke11083 жыл бұрын
Might need a 2 speed box
@stiantiger3 жыл бұрын
The jet needs gearing so the engine don' t have to rev so hard, and the pontoons can't have that angle in the front. Other than that, great job guys..!!
@corey57973 жыл бұрын
Awesome builds, asking a red motor for RPM though... You need an old Mazda 1300 engine....will rev at 8-9000rpm all day
@kman64823 жыл бұрын
Good fun.
@garethmcgregor16213 жыл бұрын
Awesome 👍
@gingerashly42403 жыл бұрын
Oh yeah, and that jet unit is meant to run at 6-8k rpm, so you can either find a gearbox that has a 2:1 ratio or you can try a sprocket and chain method
@monmejares3 жыл бұрын
There is something wrong in the alignment in the Jet engine, they should put a trust bearing at the end of the impeller shaft. it would have been more faster.
@joshtonry42913 жыл бұрын
Is that a 235 Chevy straight 6?
@gingerashly42403 жыл бұрын
Its a holden 202
@brendannunya772 жыл бұрын
WHAT!!! I scooter around this lake with my daughter. Ever time I’ve gone past this boat ramp I thought it looked like where you go. Why’d I think you’re in brissy?