I Put a V8 Engine On My PaddleBoard 

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It's so cool to see one of these engines ACTUALLY being used. Every video on youtube of these small engines is just reving it on a desk.

You should make a Thailand Longtail boat! That motor is perfect for a longtail. You would have full power no complex gears and be able to easily control and steer the boat with a standard motorcycle throttle.

"I have not seen a single lady but there's five dudes lined up on that dock" Lolz

Try just going straight from the engine to the prop, one link like they do in those Asian V8 river boats they put the engine on a pivot point and just steer the engine instead of having any gears that get in the way So you can utilize all the power.

Today you learned what many a car guy has learned. We all hope the cool V8 will get the ladies, but it ends up just being a bunch of dudes. Lol. Awesome build bro. Keep up the awesome work.

8:59 FYI, you can buy electromagnetic clutches that would fit the size of that motor. They're belt pulley motor clutches meant to disconnect a belt from its intended purpose. If you machine away the pulley part, you can then mount it with a bracket like you'd mount a car clutch and drive it with 12v.

"What a beautiful aerospace-grade waste of time" Cracked me up

Yeah i'm not going to lie, that is definitely an incredible intro Daniel haha. This was a really well shot video - all of it was smooth, including War Thunder. The sheer amount of effort going into this project is insane.

Please do more videos with this engine. As many have said, nobody uses these engines to do anything cool. I'd love to see it tuned and running well. Thunderhead289 has great carb tuning videos.

When you spend to much time alone on a solar boat....

I'm actually surprised this engine can run under load for this long without a major failure. Also I think more reduction with big prop is going to be the way to go.

It's great that you got the toroidal propeller to work, since it's so much quieter than traditional propellers. Definitely makes a difference in this build... Totally...

I think you need to make like a 1/5 scale cigarette boat with these engines. It would be one of the funniest things on the water

A liquid-filled torque converter would be a really cool project.

Words cannot describe the emotional distress I am feeling hearing you engage that clutch

1:05 thats the best thing ive heard all day "pugs are more related to a football" im dead 💀

that anti freeze bit at 5:05 actually kinda worried me lol

The water pumps on those tiny engines are typically well undersized for the cooling needs of the engine. I think a reasonably powerful little electric pump would be the way to go to make sure the engine isn't getting too hot. Also if you swapped the starter motor for a DC motor you could use it as a little generator and maybe keep the batteries charged.

“I haven’t seen a single lady. There’s five dudes lined up on the dock” 😂 **Cuts to guys cheering you on**. Guys being guys 😎

Taking influence from real ships, running the coolant pickup line below the paddle board's water line would help keep it cool, although the water pumps in these motors do not have very high flow and are prone to failure. Also, running the exhaust down into the water would solve the noise issue; add a water box or flapper to keep water from running back up and into the motor though.

These engines often run rich from factory, once run in you might be able to lean it out a bit to make it run a little better. Ignition timing might also be insteresting to look into to make it run better A 2 stage clutch might also be interesting, using both your 1st and 2nd design.

Best intro ever.

This is such a cool project. I'd love to see more done with miniature engines!

Very cool project you’ve created. You should try running the coolant intake line(s) into the lake and add an electric pump to circulate the water through the engine and back out into the lake. That should keep it plenty cool at a relatively consistent temperature. Excellent job on the 3D parts design and printing. 👍

That little V8 is $2,900 that’s crazy. I bet they don’t sell very many of them. It’s a cool engine though. Nice job on the video.👍

I love how the mini V8 still has that V8 sound. It would be cool if as your next solar boat, you did a combination solar and sailboat.

A total tonne of fun! Great work! Mostly these mini V8s never really sound like real V8s but this one really does! Awesome!

I've always wanted to buy one of those engines, but didn't want it to just sit on a shelf. Thanks for the inspiration!

It’s so cool that it’s possible to make such things in a home shop. In the old days it probably took a million dollar lab to do it.

Clutch springs have to be massively powerful. Even with modern clutch materials the coefficient of friction isn't nearly as high as you would imagine.

I've been watching a channel who buys literally every model of these miniature engines and then adds some things to make them run well. (For the metal in the oil, he tends to let them run in for up to a couple days before ever seriously revving them) He uses some of them in RC cards. What I'd love to see is one of the real car engineering channels, who manufacture parts, port valves and tune the cylinders to perfection, really go ham in modding engines, to pick up some of these mini engines (they come in everything from straight sixes to V-12) and modify and tune it to perfection. If I'm not mistaken, the mini V8 is capable of about 3HP out of the box with standard parts and that's with somewhat questionable finish on the parts. I'd love to see someone go ham on engineering a good engine out of it, put all the different engine tuning stages on it and see how much power it can make then.

Freaking so cool. I love seeing 3d printing projects like yours. Keep it up man. Enjoying your videos.

Put an exhaust pipe that goes in the water, not only will your engine be quieter (IDK if you have ever heard the sound difference of a boat engine running in/out of the water) but you might even be able to get free power from your exhaust gases.

Wow, that's some top-notch green-screening and explosion-overlaying. Also, the "bumpity-bump" clutch worked really well for the first try. Didn't even shatter/explode!

Like some others have mentioned, doing a setup like the Thai longtail boats would probably be the most efficient, although you may need a 3:1 reduction out of the engine to get any kind of appreciable torque. You should maybe set up a small electric pump to pull water directly from the lake for your cooling setup, either with a heat exchanger or good filters on a direct setup to keep trash out of the cooling system. On those Enjomor V8's, you need to set them up a little rich on the idle circuit in order to get them to rev out under load.. also, they should have a bit of pressure on the fuel tank, since the diaphragm pumps in the carbs don't work well at W.O.T. (no vacuum pulse). On gasoline, you may need an external pump to keep them supplied, while being careful not to overpressurize the carbs. Hope this helps..😉

I love the bumpety bump clutch! I love it specifically because the mercruser alpha drive has essentially the exact same thing in the lower unit. The dog gears in a merc alpha drive are a sawtooth shape so they slam together but disengage smoothly.

It is incredible you can generate so many videos and make products at such a rate, I have been following for some years and have never been disappointed in the value of your productions and I watch a LOT of content.

The universal joint is not ideal because it is not a constant velocity joint. It "pulses" as it turns if it is not straight. A way around this would be to use two joints out of phase, but they need to be arranged so that both bend at the same angle. For a clutch, I wonder, can the electric clutch from a car's AC pump be operated progressively? Otherwise a simple system would be to use a belt drive as an adapter and just control the belt tension to work as a clutch.

You should try putting the engine in front. Run it to a little gear reduction box and then to your prop. More length will give more torque. Box will allow higher prop speed. And you sitting on rear will allow you to plane easier Bet you could even get a perfect t size spring drive shaft to fit that engine too!!! That would help ya incase of any "accidents" and less stress on driveline/engine.

Love how you guys combine engineering with having fun. Best way to learn.

Turning it into a generator to use as a range extender would be interesting

Bogging at WOT makes me think your mixture is leaning out as you give the motor more air. I bet you can tune that out with new jets.

This tiny engine hooked to a dynamo could be a nice range extender for your electric boat - when the solar panels dont produce enough, or if you need them away

This is awesome! Full size boats use a micro switch that cuts the ignition for a fraction of a second to go into gear more easily. And the idle has to be pretty low, maybe you could ad a spring to push it into gear once you move the lever?

The CNCd plank was pretty cool

13:45 That felt like the gym meme😂. You go there to get jacked up and get the ladies, but the only thing you get is gym bros admiring your effort.

it was so great to se somebody use this in a practical application

Really cool concept with the V8! As for the clutch, I'd love to see it implemented the way Thai racing boat enthusiasts do it!

Try a variable-pitch prop. Then you can engage the clutch and rev to peak THEN start coarsening the pitch. You might be able to produce more power since you are already at RPM before giving it a load. I had a moped once that could get up to 28mph on level ground. However if you went down a hill it would speed up, then hold 34 once it leveled out.

Would be cool to put the exhaust pipes slightly under water. This would maybe make good bubbling sound.🥰

this is the best video I've seen about a miniature engine, also very interesting with what you did with the clutch, I have a 1926 Bentley and the gears use the triangular couplings so every time you put the clutch in on your engine it reminded me of my car with the same sound haha. brilliant video earned a loyal subscriber !!!

What an interesting video, I loved it and I am an artistic person, a musician in fact and I love how you explained how everything works! Your commentary was excellent and so was the filming!

you should totally get one of those kayaks we saw in the start of the video, strap this or another engine on there, with clutch and gas pedals, steering wheel and and an accurate speedometer.

That engine probably needs to be tuned a little bit. It might be running rich with the smoke coming out of the exhaust.

This thing sounds AMAZING. Great to see these toy V8s actually get used for something.

You pack so much work into such a short video, its amazing! Awesome job!

It's about time somebody actually put one of those Motors in something to make it work😜🤪😉

Instead of a clutch, you could try just lifting the whole prop out of the water on startup. That's what they do in East Asia. Or just buy a gokart clutch.

Dude yes. So glad to see these actually being used. Electrics are kewl but this is just way more impressive 🤘

I love this. I’ve always wanted to do something with one of these motors and this is sick!

Every time you change the oil it's a different color lmfao

Toothbrush mic is underrated

That is AWSOME content ! So entertaining. Sounded so great !!!!

I keep seeing RU-vid shorts for this miniature V8, this is the first time I've actually seen it run properly and actually used for something. Super cool.

I wonder if you could increase efficiency if you changed the U-Joints in single arrangements to duos. The engine wobble may possibly be due to the single u-joint arrangements causing nonconstant velocity output as well. If you added a second UJoint it wpuld counter the other and gives you a nice constant velocity output. and erase the slight horizontal movement that comes with a single joint system.

Would love to see more with these small engines. Water, land, air whatever but this is a very cool concept that you dont see often. Thanks for making this! Very well put together video.

This is awesome! Hope to see another iteration if you figure out the running issues

I love your videos so much and I'm looking forward to propeller test! Keep up the good work 💪

It's like 2 things I really enjoy very much have meshed together... Rctestflight and IC horsepower. The fact one of these mini motors is actually being used for something is the absolute cherry on top!

A few Ideas I thought worth sharing. On the outboard unit, have the stearing pivot axis oveverlap with the axis of the vertical drive shaft this way no mater which way you turn, the vertical drive shaft will remain in the same position relative to the paddle board, base, etc. This will eliminate the need for a U-joint of any kind. Instead of running coolant, have the engine take in cool water from the lake and dump it back out; no recirculation. This is the standerd in the boat industry. You may also want to use a small sea strainer if you go this approach. For the noise, you can always extend the exhaust to go into the water. I really hope you figure out the carburetor issue. Anyway, that things super cool! I hope to see it refined and back out in the water

Ive been into Drag racing for years and one of my drag cars has a manual dogbox gearbox simlar to the one shown here in your video. A common saying you hear with a dogbox is to "shift it like you hate it" and I cant tell you how true that is. If you try to shift smoothly or how you normally would shift all you do is grind gears no matter how much force you put behind it. The key is quick stern shifts like your mad at it , and then magically its smooth as butter.

Coolest sounding paddleboard I've ever seen!

Would be cool if you designed a cvt for it. Seems like it’d help with getting into the higher rpms

I have had the luck to work on about 8 conley v8's. And as you said, most of these engine are just ran on a stand. I'm very impressed to see under heavy load it held up.

Make a zigzag coolant loop on the underside of the paddleboard so the lake can cool it

It's great to see someone actually use one of those tiny V8 engines to power something, thanks!

I wonder how difficult it would be to make these engines electronically fuel-injected? That would be sweet! there are plenty of inexpensive programable ECUs out there like Alpha X and Speeduino.

dude GREAT effort, expertise, skill and stick to it iveness. GOOD on you! IT'S great to see a young person with the same curiosity and belief in yourself that I had as a kid. YOU GO MAN! I say you have a BRILLIANT future ahead of you man. God I wish I knew about autocad what you do. Dang.

so cool to see someone do somthing cool with one of these mini V8s

Love you content bro, keep it up!

a chain drive for transferring power to the prop would be a lot simpler and less power lossy solution

That clutch is bad ass. Really great move there.

Such good videos. I love how you find clever ways to keep it interesting.

This is an incredibly well done video. Thanks for keeping everything actually valuable and not just fluff. Great video.

You need to move your weight a bit further back to plane. I don't think you have enough power though. Less wetted area and displacement, less drag. As you are nowhere near full motor output, go lower pitch and diameter on the prop. Lower pitch will give you more push but less diameter will unload the engine more and possibly permit sufficient combination of torque+RPM to get your SUP board to plane. That's your next goal. From there, you can optimise pitch and blades, diameter to get best planing speed. Beware water ingress into cylinders. Trying to compress water doesn't end well. For that reason, don't put hydrofoils on at this stage. Lots of refinements needed yet.

You could incorporate some clutch plates in front of the dog gears so the clutch will engage then will engage the teeth to the lock the whole assembly together using the spring

This video was just fun to watch. I loved it. Thanks for sharing this vid, I’ve now subscribed.

This might help in a future build, but if you want a clutch and don't care about slip ("on" and "off") I would suggest looking at how differential lockers are designed. Any true locker (not a limited slip, obviously) should work, but auto lockers in particular do exactly what you were going for, and are of a very similar design. Nice job btw 👍

I'm impressed how well those 3d printed parts held up

Now that looked fun! Thanks Ray

I once thought it would be funny to do this and I’m so happy that someone actually did it. Thanks for making my dreams come true man.

Really cool to see these engines put to some actual use... would love to see more videos on these engines

"Electric boat man finally snaps: makes gas guzzling surfboard"

I love the energy in this video so much fun keep up the great work man

Just got to the bumpity bump clutch. Only found this channel a few days ago and I already freaking love it. 😂

I think I'd like to see a v8 Unicycle (peak impracticality)😅 Although a "most practical" mini v8 powered something, like a paper shredder would be cool 🤔

Great video! I think an easy solution for the noise produced by then engine is to route the exhaust underwater. That would eliminate most of the exhaust noise and you could hear more of the engines mechanical noises and maybe preserve your hearing!

Yo Daniel, i absolutely love this. I've replayed this video a few times already. I've been following you for a long time ever since you made that busted rc solar car for a school project. And out of all the projects you've built, this is by far my favorite one. I love rc the solar stuff and everything in-between, but this little v8 is so sick! I really wish people would use these things. It seems plenty capable i would recommend looking at re jetting the carbs or seeing if the AFR values are off. I know you can open this thing way more than you've shown! Also, a video of more raw content of the boat i could listen to it all day long.

These little engines are known to have a host of problems from the factory. Some of the most common ones I've seen are the double spark gap in the distributor, poor timing, restrictive exhaust manifold, undersized water pump. Once people fix those, these engines have a noticeable difference but sometimes rip themselves apart. Some of them even have superchargers available which can help increase their power as well by a little.