We Doubled the Top Speed of our Yard Built Jet Boat for $6

Our world's cheapest jet boat build just got a whole lot faster! Our Predator 212cc boat was slow, but we added a reducer to our Predator 6.5hp trash pump propulsion system, and we over doubled the top speed! This isn't quite a fast jet boat, but it can certainly get you from A to B. Not bad for under $100!
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[@btf2842]

I still say a 90° intake elbow facing forward will help and they could just put a short like 12" fairly stiff hose on the reduced outlet and use that to steer the boat like a proper jet steering and ditch the rudder

[@Rein54]

Exactly what i was thinking.

[@jayjohnson7827]

I would also 4 into 1 the intake across the bottom.

[@SilvaDreams]

Actually you'd need a smoother intake, the angles slow down the water flow because you end up getting water hammering at the corner. You'd want to make the intake a smooth incline ( on the output too)

[@stevefairchild3337]

I agree with this idea and increase the diameter at the end of inlet sorta like a scoop

[@jonathancrissinger2301]

It was fun to watch the three of you out in the pond. In my opinion, it was a success. Just because it didn't go fast definitely doesn't make it a failure. Hey, it didn't sink!!! Lol

[@bradleyj.fortner2203]

I love this channel. There are a handful of other "jet boat" builds on KZbin right now. Grind Hard just finished theirs, Vasily's building one, and there are a few others. But, leave it to CarsandCameras to take a bunch of yard trash and make the jenky-est jet boat that KZbin has ever seen. You guys sure know how to have fun.

[@jimbagle.3939]

I love the jenk.

[@largelarry2126]

I'm thinking Jet Ski pump with a Mazda rotary engine.

[@bradleyj.fortner2203]

@@largelarry2126 Heck no. That's too nice. They shouldn't change a thing. Unless they can somehow make it faster and more dangerous for like a buck.

[@greenwizard2000]

@@bradleyj.fortner2203 don't forget more janky!

[@royvarner9256]

@@largelarry2126, I have a jetski pump and the disassembled gas motor in a box and trying to figure out what to do with it. I have a fairly lightweight bass boat that it might push ok. I wonder about electric drive with active solar panels on board helping to keep the batteries charged 🤔

[@joshuasmith311]

Ok, I've seen it said and it seems like a good idea to put a 90 on the intake facing forward, maybe add a vacuum cleaner wide nozzle to get more shovel effect on the water when moving. In true old cars and cameras fashion though, that thing needs a true jet ski motor. Half janky and scary as hell, true entertainment. Keep up the great ideas guys.

[@ilham7345]

jet ski engine would be too big and heavy for that thing, but vacuum cleaner nozzle is probably the best idea

[@Geequed]

Love this project! It's what life is all about. Having fun. It's not fast, it's not good, it's barely floating. But everyone was laughing and smiling. Greetings from Northern Sweden! 🇸🇪

[@akio2589]

Whelp. Way I see it, time to build your own jet pump with some 4" SCH 40, super sketchy homemade impeller, an old go kart axle, some pillow block bearings, duct tape, and ungodly amounts of silicon. And a 25 HP engine.

[@justinyates1154]

Hey now we're talking some real "it'll be fine" youtube gold

[@majorrev8690]

sch 10 would be better, imo. less wall thk = less weight.

[@akio2589]

@@majorrev8690 I... Don't think weight would be the primary concern in this particular scenario.

[@majorrev8690]

@@akio2589 fair enough... and you're prob right. a piece of mechanical tubing would also wk. the wall thk doesn't really need to be std wall ansi pipe tho. but i guess they will use what they can get their hands on.

[@akio2589]

@@majorrev8690 I mean.... I'd think you'd want it as thick as you can get as: A.) Cavitation from the impeller would wear the pipe down pretty quickly B.) Thicker pipe provides more protection if/when the jank impeller comes apart doing 7k RPM C.) 4" SCH 40 sewage pipe and fittings are readily available at any hardware store. Even real jet ski pumps have a wear ring that shrouds the impeller from the pump housing to keep cavitation at the edges of the impeller from eating away the housing itself.

[@garchompy_1561]

definately change the intake. try a pipe coming straight out the pump intake going forward, maybe at a slight downward angle, make it far easier to get the water in to the pump.

[@charlesstaton8104]

This is my favorite project y'all have done. Not sure why, but I love it. Please don't end it so soon. You don't need to dump a ton of money into it, just improve the intake and find that sweet spot on the outlet. I think you could actually get it on a plane with that pump.

[@mocarpenter8836]

Love the Straight Body Chevy brother!! Charles is the BEST addition to C&C ever !! Really the Only Addy but we won't talk about that! 😁🤣 !!

[@FilipMunk]

I think you should keep it as is, and build a new improved version, with a bigger engine pump and a better boat chassis, then you can be 2 on the lake racing :)

[@cavemanvi]

If you make a conical mesh intake filter and aim it forward it’ll stop clogging issues cause the movement

[@G-FORCEEE]

We need a video where Charles gives us a introduction to his truck! 😃👍

[@jeffakacrowntownbrewing]

They did a walkaround on Charles’ c10 on Ikes channel. Link below. 👍🏽 kzbin.info/www/bejne/mXXGfIWgfa6hoJY

[@robbytheremin2443]

"You made a wake!" 🤣🤣🤣 That earned y'all a subscriber.

[@cayminlast]

You should call it "The C&C Minnow" with 'Captain Charles' at the helm. Altogether, I would say this has to be in the 'top ten best Crazy Projects' you guys have done. Thumbs up and thanks for a good chuckle and learning opportunity.

[@stonevalleyozark475]

I can't remember the exact formula, but to prevent cavitation the inlet needs to be like 30% larger than the outlet.

[@Unending_One]

Inlet also needs to be in an advantageous position.

[@stonevalleyozark475]

@@Unending_One yeah, with the inlet pointing straight down cavitation will always be an issue, especially as speeds increase. They need to add a NACA style scoop to the inlet.

[@Unending_One]

@@stonevalleyozark475 I'd point them to Grind Hard's jetboat video. As for junk getting stuck in the pump, that will ease if they reduce the places for stuff to slow down, and decrease cavitation.

[@qx-seven4443]

I agree. I would open up the intake more to prevent the cavitation. Thinking an open box secured to the floor with a screen or bars to protect it. This would feed into a duct or hose into the inlet. Maybe you can reclock the intake to fit accordingly. Quick example. Car stock intake air box with screen, with a hose leading to the pump. But built accordingly…? Or… ‘it’ll be fine’. 👍 Awesome shows. Keep up the great work.

[@isaacroufs5779]

Awesome project, a ton of fun to watch. I'd say keep this as V1, but definitely build a V2 with a sleeker design (more like a canoe), bigger engine, ram style intake that's more flush with the boat bottom, heavily reduced outtake (like a 3 or 4:1 ratio), a different style, bigger pump (if you can find one) that's more inline with less turns, use the outlet to steer (flexible tubing or something), and a solid priming system (if necessary). Definitely keep the budget theme, but get the parts you need to make it sweet

[@1NIGHTMAREGAMER]

Or more like speed boat design

[@benjaminsunderland2336]

This needs to be a series. It would be awesome to see bigger pumps on it. Great video!

[@WingmanJohnny]

Me and my wife was laughing the whole time. Yinz guys did a fantastic job. Keep up the great work 👍

[@andrewwisniewski3005]

Make a inlet the is a thin oval with a 90 on it for the most water intake. Like a hood scoop.

[@jamesmullen4308]

Sweeping 90 degree elbows would be cool to see. Especially some sort of "scoop " for the intake to help shovel water in at speed. Might help with cavitation. But all locally sourced parts from hardware store. I say stick with this pump and engine to keep cost lower. See what it can do with minor improvements.

[@matthiasborgdtadt8673]

I think so too. As far as I know, cavitation starts when pressure in the pump inlet / in front of the prop drops down too low and a like "ram air" inlet should move that point to higher rpms at speed so the pump can flow more water while absolut pressure out of the pump should rise too. maybe even with some kind of diameter extension in front of that one to increase that effect.

[@jordanmcfarren7226]

Shop vacuum attachments would provide good shapes for a intake scoop.

[@davidkuhn3058]

We want more marine stuff!!!! Love it! And well always funnier with Charles humor " the boat can't handle it captain " fun y stuff

[@acorby100]

The is the quality content I come to this channel for. PLEASE keep up the good work gentlemen

[@ginomaneri9703]

I say find a trashed jetski and run that pump with the HF motor.

[@haulngrassracing]

A couple of suggestions. Copper sulfate treatment for the pond and add a hose to the top of the pump to prime it and then cap it off. Good luck

[@OgnyanDachev]

More of this guys. What a fun project.

[@greenwizard2000]

YES PLEASE more of this! Absolutely loved those two videos!

[@Ty-bz7zx]

Weld 2 small pieces in a v on the bow @ waterline to divert the weeds/algae and such to the sides, improving the intake angle will help a lot as well imho.(maybe 2 inlets into the pump?) Looks like a blast and fun no matter what ya do ! =) Enjoy and keep sharing!!

[@BuzzLOLOL]

That pump should pass any crud coming in...

[@Ty-bz7zx]

@@BuzzLOLOL "should" ... but we watched it clog up both the intake and the internal impeller. (cleaning the rust off the impeller will help it pass crud as well) Hard to get a combo meal today for under $100... Great build and super fun any way they do it. =))

[@prophez23]

Poor Charles was trying to make a point about the screen clogging the intake and Ike just ignores it and does it anyway. I feel ya Charles I feel ya 🤣🤣

[@noone42069]

That is an absolute wicked truck! LOVE IT!

[@beckywalker1613]

You guys are Awesome 👍 We always get a good laugh watching you while we learn from you too 😉

[@ronjon4010]

That was cool. I'd love to see you all do all the tests again while carrying your GPS speedometer. Then you could start a "boatsandcameras" speedchart in the shop.

[@rcchallenge8626]

Maybe change the flow of water into the engine with a 45angle fitting so water is also pushed into the pump instead of it having to just suck it up? Awesome fun project and vid to watch full of giggles 😂 keep it up chaps 👍

[@tough101]

This build is awesome! Thanks for posting!

[@levilarkins8869]

I think you should try a Venturi fitting on the discharge. Should be able to find one used for product agitation in AG sprayers. Reduces the discharge increasing pressure. The high pressure stream pulls surrounding water with it through a cone shaped nozzle. This greatly increases the discharge volume. They are pretty amazing

[@ryanjohns3823]

I commented on the first video, about how you could use a fitting to potentially reduce the the water flow to a fast, fine, and in a small stream.

[@matejsimek8225]

If you have cavitation problem that means that intake is to restrictive. Before you buy bigger pump put inlet at an angle towards the incoming water and make pipe angle towards the pump smaller. Like Ike said more Hp is useless beacuse you will keep running into cavitation. Every sharp bend drops the water pressure, also bigger pipe up to the pump will help.

[@BuzzLOLOL]

Yep, needs an intake scoop to force water in faster,,,

[@legro19]

Cavitation will only destroy the impaler but it will take long time. There is epoxy you can put on impaler to protect it but it won't reduce the capacity of the pump cavitation is inevitable on pump no way to avoid it at the end any pump reving over 1800 rpm get eaten by rust or cavitation and need a new impaler.

[@matejsimek8225]

@@BuzzLOLOL all od that, is true, but problem is that they have to much pressure drop on the intake, is it local presurese drop or is it pipe line presure drop i dont know. But pipe line drop can be fixed with bigger pipe and local prrssuure can be fixed with better design

[@BuzzLOLOL]

@@matejsimek8225 - A scoop uses speed of the boat to force water up into the intake... like real jetboats do...

[@megapixel2004]

Love the classic aluminum shell on the square body.

[@bobmanzi7712]

great stuff thanks

[@Herbybandit]

You know you've gotta try a prop driven boat now! Something like they build in asia! Long, narrow and driven by a turbo charged car engine 😁

[@jonathanz4987]

You guys are ridiculous!!! Love it! I totally want to see more.... jury rig something crazy or put it on a canoe.

[@Yz4Life]

Love this boat and love you guys!!

[@joshuadathsbc5765]

Loving this little build series, I would love to see top this in more videos

[@nothuntersmith]

i think it could benefit from a better water inlet. something with a more ram air style water intake

[@kingmarz3635]

Cone

[@mudmonkey4x410]

This thing is awesome very creative

[@martinlicht1969]

I agree with comments here suggesting modifying inlet with angle fitting facing forward. Next, make an air boat like the everglades boat. Just a fan in a cage and a rocket engine of choice. Nice fun stuff and thanks.

[@Mr.M1STER]

Don't stop there guys. I think this is one project worth taking a bit further.

[@quintonbrill5709]

I'd love if y'all found a bigger pump used or new and put it on there! We need to know how fast you can make thing go!

[@charlesdarwin4780]

Streamline your intake and the cavitation problem should go away. Every 90 degree angle decreases performance.

[@tugdrivinj]

came here to say pretty much this. make a nice intake. also to reduce with a suicide nozzle. it's just a smooth taper from 2 inch down to like 3/4 maybe smaller. Maybe make a lighter impeller too.

[@jodykeighler1694]

Love all the videos

[@DracolegacyOfficial]

for what it is this little project has been fantastic. great work guys.

[@Tj1983coggin]

Keep the smallest outlet and tune the engine with small upgrades to get enough power to push it!!

[@joeolson9763]

I would love to see you guys make “Top This” into a fan driven boat. You know, like they use in the Everglades or other swamps. What do you think? Smokin’ Joe

[@larrydavidson3402]

Another great video from the cars and cameras crew. You just can't help but laugh at their antics, keep it up guys.

[@thunderpants645]

Proof of concept. It worked gentlemen. Congratulations!

[@jackmagnium6115]

alot of comments(including mine) on your previous video suggest you should go with a longitude style and a transmission. you already are losing power in the converter and chaindrive

[@shawnsatterlee6035]

What's this gotta do with the "jet boat" video you're commenting under?

[@tomstech4390]

@@shawnsatterlee6035 It's made by the same people very recently. Just a guess. People are allowed to comment on things.

[@jeremyTallen1]

I think it would be more cost effective to find an old jet ski and use the engine and parts from that.

[@frankiesaotoandmore5872]

Loved it got a helpful tip for the pond it needs a natural filter in way of a natural river and waterfall it will help out a lot .

[@nc1454]

Entertaining as usual

[@Thatgreenbronco]

i love watching your video's but if i had a suggestion it would be it's time for you guys to step it up and make cool stuff out of good quality parts instead of making junk out of junk, there's so many people on youtube making really nice buggies and i feel you guys are falling behind.

[@crazymower4343]

No! this stuff is the only reason I still watch this channel!

[@xWooZyAmericaNx]

that would be too vanilla. Keep innovating with used parts for the un intended purpose

[@napi1136]

thats the point of this channel most of the projects aint stupid expensive so its more relatable

[@jacklogan4830]

NO please don't while other projects using performance parts are cool and all but these budget things are just so fun to watch and are so relatable.

[@bodiewane2294]

I made bath tub boats when I was a kid now IAM a plumber let's go ..

[@noneyabusiness969]

Thank you AGAIN for letting me tinker vicariously through your channel and your merry men of fellow builders. I do have a couple points.... 1. At 22:39, you said your summer 2020 fun project....I too wish we could go back in time, lol😎 2. perhaps check junkyards or metal recyclers for a jetski drive system that can be had on the cheap? (Then that 25hp. motor frankecobbled to that?) 3. Bring the inlet side of the pump down about 3-5", then put a sweep 90deg. fitting - perhaps that will get the inlet below all that duckweed? Follow that with a 4"-2" reducer to collect more water under speed. 4. Sweeping bends and smooth transitions in size flow better, meaning more gph through that same pump. (I believe it is called Laminar flow???) 5. Go back to the nozzle diameter you used before the final modification, but make it a smoother transition (stack more reducers, with a with a 3" segment of pipe between) 6. Try a 2 inch pipe squished flat with a bit of heat to produce more flow with better pressure Men, thank you for the fantastical magnificent stuff you build! I like ot a lot! Keep em' comin!!!!

[@timothyruggles3031]

Great show.....

[@everythingcarson7695]

First

[@TheMapleDaily]

Definitely build a V2 and keep this as a learning point and a model to look back on! This jet boat content was more exciting than all those guys with big money, I do agree a bigger higher volume pump should be on the build list for V2 as you reached maximum performance out of V1!

[@MjS-zb6jr]

Should see if you can get a 3-4 inch high pressure pump from the juckyard working for it. Angle the inlet forward and use bars running front to back as the screen so bits don't get stuck in it as easily (oven shelf prices would work)

[@skyb2149]

Lovely pond y'all have there....

[@El_Chompo]

I love how much speed you've gotten out of the boat for the amount of money and work you put into it. Really amazing! Makes me want to make one now! And it really goes to show why those "off shore" boat racing V8 custom engines are always a class above any of even the fastest drag cars, that water really just demands so much more power to push through. I think it would be a good application for a turbo if you could do it cheap and easy somehow to keep with the theme of the build.

[@jojodiabeto]

Just got my signed shirt! I love it so much! Never been happier to get a package! And to open it up and see the signed shirt made me jump like a child! Keep making amazing content! Thank you guys

[@FukYa.]

This is ridiculous. Ridiculously freaking awesome love this unique shit🤘🤘

[@aaronjordan8789]

🤣😂🤣 I think you should dredge the pond and keep at it 👍🏻makes for some hilarious watching guys

[@CarterCassedy]

Glad to see you getting into boats it reminds me of the first minibike video you made 😂👍

[@jimmy66651]

Definitely want to see it.

[@joshuaorourke6247]

I love how you guys are jumping on the jet boat bandwagon. Two things! A line running off to the side with a valve to prime the system so you don't get hosed, and you should do your own jet boat give away. Lol. There. Are very few things I look forward to. Mondays and Wednesdays are days I look forward too! Keep up the great work.

[@jm7210]

This was so much fun.

[@SharkysGarageRCandMore]

Would love to see more. Proper grate on induction side, paint job, you coul put runners either side of the induction and output put mesh over it all the way from front to back may help with the cavatation

[@coleslaw110]

The beauty is in the simplicity and the hacked-together-ness of it.

[@Spiveyaustin]

Also I love this channel been watching since y’all first started

[@Ron-Swanson]

Jet boats actually pull themselves through the water, that’s why you can trim the jet up into the air and hardly loose any speed. You need an elbow pointing forward on the intake of the pump.

[@mariolavergne5258]

Try extending the outlet of the pump closer to the rudder! Might help with your thrust!! And also turn the inlet 45 degrees forward that way it should work like the water is being pushed in and might help reduce the cavitation issue.

[@RearEngineShop]

This is the build we needed! 🤣

[@Rumstein357]

I say go big and see how fast you can make it. Great video as always!

[@Robert-ni6ut]

Great video love this build. Would love to see how it goes with a bigger engine lol.

[@n8nkqrp595]

This was your finest hour, boys. I'm proud of you!

[@MultiKelly85]

Do a "from scratch" mini jet boat build. I think you guys would knock it out the park plus it would go perfect with this channel. Awesome video as usual!

[@docsoutdoors9563]

I love the boating videos!!! Maybe a prop drive with a tillotson 😊

[@melodeekeays229]

That was fun and funny when John got a wet crutch.

[@bretwill9417]

I'm ready for drag rail videos!

[@kevinmckinzie]

You guys obviously had fun doing this/ Now it's time for a lightweight Jon boat and TWO pumps!!

[@Chacheea419]

Get a bag of copper sulfate from the co-op and sprinkle out there for the algae. Love the videos guys!!

[@Bama3728]

Replace the purge plug with a water faucet and about a three foot piece of water hose to hold over the side. This would eliminate getting soaked while purging.

[@douglashanks4189]

Did love this. For more speed see if you can find a matching trash pump for twin impellers

[@davisphillips7792]

The intake adapter looks like y’all could make a new plate with a 4 inch inlet. That way it for sure isn’t starving for water. No matter what, it looked fun! Thanks guys

[@sunnybeach9145]

Looked like three little kids having fun. 👍

[@weldeddaydreams]

Love it. I think one higher powered engine, say 10hp, driving two pumps side by side with a chain or belt. Y the outputs together, then use a bit of rubber flexi hose mounted to the rudder control for true jet steering too.

[@davidowen888]

I Love you Guys 🤩 not in a weird way a brotherly way 😉☮️ faster is better as is bigger is better, BIG PUMP 👍

[@AmblingMan]

as well as the oft mentioned intake I'd also add a small diameter running bleed from the top of the pump to let the air out, if you can keep the pump fully wet it should work better.

[@camyota]

"We're only workin with like 2 inches here" yea, I feel ya buddy. 😂😂😂😂

[@jazz1on]

Nice, keep it going :)

[@Averywhite20]

I would love to see more of the jet boat

[@johnschwarz6564]

You're on the right track with the reducers I suggest that you put a scoop of some sort on the intake with like a wide open screen to keep some of the trash from getting into it and that should help with the cavitation it has and you can possibly put a bigger higher horsepower motor on there

[@codylane3981]

Go all out. I wanna see dual big pumps!

[@youngbloodmoney27]

1:20 he tried to get ike with a piece of trash and ike just side-eyed tf out of him then looked right at the camera like "i ain't fallin for that bs" 😒 😂 🤣