Turning My Gas Boat Electric Part 2 

It came out really powerful. Pleasure working with you Simon. Hit us when you are ready for the next one. 🎉🎉

Motor: Genius. Boat ramp: at least you tried.

Skip the rollers for your ramp. Just use wood planks the full length with waterproof carpet on them. Cheaper and stronger. Great job, very cool project!

The best part is how it's totally silent and doesn't sound like tinnitus at all. Grymt.

ElectroBOOM would be proud

AMAZING!!! A tip for your ramp and trailer: use 2 2x4 (or 2x6) wood planks covered with cheap carpet as ramps instead... no risk to damage your hull. Usually people use cheap artificial grass mat or cheap utility door mat (in fabric). Despite a little friction (compared to wheels), your boat will slide easily. 😀

Simon has done tons of projects, and unique engineering setups, so watching him build the worlds most dangerous way to get a boat in the water is fantastic. So those rollers are really bad for boats. They allow movement, but they will eventually crack the fiberglass? because rollers don't spread out the impact. Can you get two tracks with rubber on them , and then install them so they lower the boat into the water with a vshape that matches the hull? When big boats have little smaller boats on them, sometimes they take the motor off so you can handle the boat, and deal with the motor easier.

Dont build a jet drive for it. Jet drives are really inefficient and you lose about 30% of your horsepower to various losses. If you want more power, start by trimming your motor up, and adjust the height so the cavitation plate is level with the bottom of the boat. And make sure you have the right pitch prop. You can lose a lot of power by having too steep, or too shallow of a prop.

Cool build👍 get a surface piercing prop, raise the engine and get a nosecone for that gearcase. Then you will get some speed 😎

Great project! 2 things: - did you think about cooling the battery? Foam protecting it and such will be basically insulating it, so get even hotter. Heat is one of the biggest enemy of batteries, and it depletes it faster. - you could build an aerodynamic canopy, I think windage is slowing you down and worsens your efficiency. +1: Propellers are speed matched, so could be that an other propeller will give you better efficiency. The difference could be as big as 2x.

Great project. I worked on a collegiate electric boat competition called Solar Splash, it's still in existence in the USA. We had so many problems with our speed controller limiting the current that eventually we came up with a strategy where we throttled up to full speed then activated a contactor that connected the motor directly to the battery (no speed controller). At that point your head would snap back as the motor could draw as much current as the batteries could put out (close to 1000 amps for a limited time). This was a brushed motor however, I'm not sure what you're using. The contactor has to have the ability to break that kind of current, otherwise it will weld itself shut when you attempt to turn it off. Great channel.

A tip for the jet drive conversion. Use the jet drive from a scrap sea doo or jet ski.

Dont do the jet drive, it will just make it slower and more prone to leaking. Try adding tilt to the motor. If you could tilt it outwards more then the bow of the boat would be higher, you would have less boat in the water and could go faster.

Jet drive is 100% the way to go. Awesome video. Thank you.

glad that you are using your hand to steer this time

The joy and happiness of building something and making it work is clear on your face. Now lets see some foils under it and huge efficiency!!!!

Please dont ever stop making videos! I love watching u. Every video is a BANGER!. Greetings from Denmark!

Hell yes!!! I got a little M-Jet RC boat that i 3D printed. i can't wait to see that boat with a big jet drive!

Properly Cooling the motor and the battery would probably make this thing amazing.

Cool! 19.4Kw is like 26hp! That's awesome for the small size.

Nice! Skip the jet drive and make it foil!

If you put jet drive in to that boat, its exactly what I have been planning (dreaming) for a couple years now. Small electric (or gasoline) jet speedboat version from of those really fun small jet boats from America. All tough, I would build the frame myself from wood and/or fiberglass. Cant wait to see what comes out from your plans! ps. awesome content! With best regards, fellow from Finland.

I'm loving this! Great work, good fun watching you! Jet will be really cool

Flat PVC stirps mounted to your ramp will be much better than rollers, but could require 2 people if the angle isn't steep enough to cause the boat to slide down towards the water. Easy enough to test friction and extrapolate the required data from there to find the angle it would need to be in order for one person to be able to lauch the boat. All in all, this is pretty awesome and just needs refinement. GG bro!

That was such a sweet moment with you and to it partner driving together

Awesome build, now you need enough batteries to keep her running for all day! 🎉

Before you remove the outboard you need to raise it up higher out of the water. They are only down that far to get good cooling to the gas engine. Raise it up till it start to surge and then down slightly. I am not talking about trim actually jack the motor higher up on the transom.

I have always heard a throttle pedal in a boat called a "Hot foot".

I wondered why you didn't get a boat big enough for 2 - @10:27 Looks like you were way ahead of me.

large high voltage packs like that scare the heck out of me. I've always wanted to build one. Thanks for reminding me why I don't.

What happened to trying different props? Forget the PUMP! Work on a few props? Raise the motor mount about 5 inches and run closer to the surface. Reduce as much metal weight off the outboard and have fun while the weather is nice and you and your girl can enjoy the boat. Make two seats forward and aft. The cooler the snacks and beverages, the sun and fun.

I love this. I've converted a little sailboat (Vaurien) to a petrol powered outboard, many years ago. Still in my garage to rebuild it as an electric version. So following this closely

You have the best content! I always look forward to it!

I feel like it's louder than it should be. Like a lot louder. If it's loud like that I feel like you're losing a lot of power on the mechanical end. Somethubg is not right still. Something is too tight or too loose. It should be way quieter than a gas machine. Water cooling will help a ton. You know this obviously. I have several VESCs and one is the 75300 with integrated water cooling and on that one I'm getting away with using a PC cooloer radiator and a 12v pump. This is on an overbuilt bike, radiator behind the headlight. I think if I were in water I might be tempted to use the forward motion of the craft as the pump. A little janky but here's what I would try. Open end of a tube facing forward fastened to the bottom of the boat, the faster you go the more water you get type deal. The waters always cool that way. If it lacks pressure just use graduated hose sizes. That controller is rated up to 500 battery amps. That's a beast. I bet an industrious person could make a jet boat with that. Maybe someone that has experience with impellers. You wouldn't know anyone like that would you? Just sayin'

If you want to add even more speed/cornering you could add some sort of mechanism to trim the motor up/down so the boat sits higher/lower on plane.

Nice project! And hey it's your build so whatever you decide is best but jet drives are usually about 30% less efficient than the outboard drive you already have. Maybe try a straight shaft? Like on the RC boats. That should cause the least losses from motor to prop, maybe give you higher speed and eliminate most of that noise.

You need the batteries all the way at the back of the boat for a higher top speed because of the hull shape. Love the videos cool to see a two smoker being reuesd for a different purpose.

Love this channel and all the builds! Can't wait for the next one!

Good to see your projects actually start working! Youve come a long way! Ive been proud of you since the beginning!

This is amazing. You should do a tutorial series for beginners, to show how to make different small projects.

When gliding it is better that the weight is behind approximately 1/3 of the length of the boat and it is better that the throttle is on the hand and not on the foot, it is much more constant and easier to control.

maybe have under water motor with high speed but lowest noise. maybe apply anti noise foam

Place glass or clear plastic in front of it to improve flow and prevent exposure to too much wind

When you need to print strong stuff, I can highly recommend you fibre reinforced Poly Carbonate (if your printer is able to handle those temperatures and if you have a hardened nozzle). Or if you are lower on budget, you can already improve your prints by printing out of (fibre reinforced) PETG instead of PLA. Also if you have CNC mashined parts, I think a high performance aluminum (e.g. 7075) might be cheaper, lighter and should still handle those loads. You can also let it eloxate to make it look nice (e.g. black) and to safe it from oxidation in salt water.

Bravo mate, my new favourite project of yours. Thanks for the ride

Such an awesome project, aside from the genius build I just have to say those teeth be looking so good bro. Had to recap on old videos to see how much you've grown over the years. ABSOLUTE STUD!!

So happy to see new videos - this project is amazing and you're doing great!

This looks like so much fun to drive! I love how EV conversions can take an old piece of junk and turn it into something new and amazing.

Now all u gotta do is make a roof over the top and put a solar panel on it 😂

decouple your engine from the chassis with some washers made out of soft material like tpu

I am so happy you finally went to VESC.

Damn, this becomes better and better.

Just got an idea: BATBOAT CONVERSION (like the race hulls. They use wings to get them the lift of a catamaran with the stability and rough water capability of a monohull)

Your foot steering skills are unmatched. But I am happy you can used your hands now.

Now that you got the speed controller working you should put the steeper pitch prop back on and see how fast it’ll go

Your videos are awesome! I always look forward to them. I think you should stick with a prop. Maybe even use a surface drive setup where only 1/2 the prop is in the water at full speed. A jet drive is great for shallow water but I believe a prop is more efficient. Great work on this!

That’s awesome. I would just say that I wouldn’t do the jet drive just yet. Jet drives are a lot less efficient than standard prop drive.

The cheesy grins says to me you enjoyed that 😀

You should raise the motor so 1/4 of the diameter of the prop is above the keel. This will aerate the prop and help it free up once the boat is one a plane. Guaranteed, it would give you an extra 20% speed at least and be way faster than a similar power jet drive.

The easy part is done... Imagine how fast it will be after you put it on foils... Challenge sent!!!

I think you will find that a jet drive will not be as fast as the propeller drive without a lot more horses.

That thing will move with the fans alone😂

Nice work! Such beautiful place/lake they've got. Shame there's no boat ramp for easy access😅

glad to see @3shulmotors featured on this project. Best controller out there!

For a jet drive an inn runner motor would make more sense since you could more easily make a water jacket for it.

Jet Drive, yeaah boiiii. cant wait for that.

I'm surprised your cables didn't melt. At a guess from what I could see your cable from the batteries to vesc to motor is about 16mm2. With 382 amps about 2 metres your voltage drop would've been around 5%. Cable size for current carrying capacity alone should be 150mm2-ish. Sorry if you explained this on your live stream or somewhere else that I missed.

Put one step higher pitch on the prop, and highspeed prop. And test put the engine in surface drive. Just for curiosity. 😁

The jet drive idea sounds great make sure it’s circumference is pretty big good luck!

awesome boat! can't wait for the jetdrive

Yes please jet drive!! Sounds super rad

Love this guy

I don’t know if you’d want to continue with the boat stuff, but you should try doing this with a waverunner. Good video 😁

Nice video as always! Looking forward to the jet version!

Yup love that jet drive idea

I feel the 120 volts tingling at your fingertips

Jack plate would do wonders for the top speed as it reduces the under water drag.

You could always try a more aggressive pitched propeller and/or a toroidal propeller before ditching the outboard and going with a jet drive.... Either way, I look forward to your next video!

Your outboard motor should be raised up one and a 1/2 inches from its current location. The bottom of the boat should be one and a half inches lower.Then the cavitation plate, according to mercury racing

This should be sent on prime time TV!

Very cool. But now throw an old Johnson 115 on there and see how fast you can go!

This thing is awesome Simon! Nice work, can't wait to see the next version!

I think you need to add a Go Pro mount on the boat so you don't have to hold it. I'm sure you could add electronic control for positioning.

Loved the video! Awesome boat. Now add a hydrofoil!

Might be cool to replace some of the skin w/ solar panels although your rate of power usage might mean that basically doesn't work! You can perhaps put the batteries on some sort of sliding assembly, so that you can move them forward and backward in the bow, adjusting your front/rear bias and giving you a way to adjust your trim

jet boat sounds awesome

The sign behind you in the opening is well placed

Now imagine 400 amps on a dual motor stand up scooter (both motors powering the rear wheel with chains). That is what I was doing in 2003. It is all about the controller and not catching the motors on fire, which I did many times.

You're better off leaving the outboard boat as it is and finding a jet drive hull. The hydrodynamic design is specific to jet drives. Maybe find a jetski with a seized engine and retrofit?

Love these videos man, also any combo of water + electric propulsion.

those looks to the camera when something is going wrong will always get me a good laugh, even after all of these years of following ;)

Great , now attach that hydrofoil and fly on water . Hope will see a video about that soon , all the best .

That's like 28 knots. Not that bad.

100% lost that drone lmfao. Great video.

Ok, now we need a 3D printed Benchy !!!

Crazy ideas, crazy builds 😂

If you were the Australian Government, in order to increase your range, they would just put a diesel powered charger at your boat ramp. Love your projects, though!

28 knots,not bad

Surface propeller! GO ROOSTER! (Not the chicken type xD)...

Should add a wing above the motor attached to the transom.