Testing the 100HP Mini Jet Boat With a 18v Drill!
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- เผยแพร่เมื่อ 21 ต.ค. 2024
- Fabricating the intake for the world's first 100HP mini jet boat! Win an AmeriBrade Belt grinder here www.grindhardp... This week we tested the jet boat intake with a 18v power drill and it worked! So far we have swapped a jet ski engine into a mini Jet Stream Adventure Boat!
Full Jet Boat Build Series Playlist • Worlds Smallest 100HP ...
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Test drive with the 100 HP engine here th-cam.com/video/l8ahwD6wSpk/w-d-xo.html
Build a trailer to haul the boat behind one of the power wheels
best idea ever
That would look so sick
He said he was in his other video
It will absolutely happen!
@@GrindHardPlumbingCo you guys do all the right stuff. Keep kicking ass.
This is literally my favorite project you guys have ever done it’s awesome to see you guys expanding over the last year from growing your team to tackling bigger and better builds
Thank you we are so happy to hear it!
+ This. You can only get so far with wheels, and then you need a propeller.
This build is going to be so cool when it’s done. I hate to be a downer, but I’ll be shocked if that pump tunnel doesn’t cause the pump to cavitation super bad. Not only is the opening much smaller than the pump itself, but the sharp corners and “arched” space just before the impeller will likely lead to air pockets forming at higher rpm’s. Keep in mind that the drill at full rpm is basically idle speed for that kawasaki 750, so spinning 3-4x the rpm with a pump tunnel that’s not very streamlined will almost certainly yield cavitation. Hopefully that’s not the case and it works exactly how you’re building it, but if it doesn’t, I think moving the engine to the front, building a longer driveline, and smoothing/lengthening the pump tunnel might be your best bet. This would allow the drive to sit a bit farther back and not be so cramped as well!
All that really needs to be done is the pump/intake has to be pushed back a bit to get a good smooth intake.
If not I'd make 2 more side tunnels on the sides of the engine and join them into the main tunnel..
@@sawyerwallace9631 that could also work, but then the pump would probably hang out the back a minimum of 6 more inches. Would still work, but would make the boat handle weird
@@EatSleepShift Interesting idea. That could work, my only concern would be if the “side tunnels” were too widely spaced, on would almost certainly come out of the water on harder turns leading to cavitation. Also extending the tunnels to be longer to reach around side the engine could mess with the fluid dynamics and lead to a big performance loss potentially
This is the first think I thought when I saw how far they were pushing that coupling back into the intake housing. It’s gonna have a lot of issues.
Finally!! Bring back the shorter but more often videos! I need at least 2 a week! Good job as always guys!
:)
honestly, i read it “two a day” and that pissed me off. but then i thought about the comment again so i came back to look at it and have concluded that i have dyslexia AND anger issues. nonetheless i agree!!!!
edit: it upset me because that would be a kinda unrealistic expectation and is too demanding
@@cooperlilley7099 Well atleast you’re honest. Have a great weekend!
@@subzeromjc haha thanks man, you too!
This episode was so satisfying and relaxing. Great soundtrack. I imagined watching it in a classy lounge setting, sipping a hot cappuccino in a hot tub on a patio of a snowy mountain lodge.
Watching them both in the boat going in circles having a great time was hilarious 🤣
It sure is nice watching your little "plumbing" company grow so much over the years that I have been following your channel. From that first build with the Barbie cart, all the different cars and trucks and other 4 wheeled vehicles and right up to now Grind Hard Plumbing also has become a boatyard as well. Your little group has and most likely will grow much bigger. When are you guys going to start the new shop build? I know that I'm not the only one waiting for that to start. Hopefully, it will get lots of video coverage, just like your other builds. Keep up with the great work, doing what you do has been a pure pleasure to watch and I'm sure that there will be many more wonderful videos for your fans and friends to view. THANKS!!
I remember watching these two guys hotwire the Tacoma when they first found it. Those were the days. So cool how far they’ve come since then.
I was grinning like an idiot watching you two move around in that little boat powered by the drill. Simply joyous.
Your builds are Awsome. You need to get ahold of Cletus McFarland and do some jet boating.
We put so much love into this video! What do you think? Enter the giveaway here www.grindhardplumbingco.com
So much love. This is my new favorite editing style!
Y'all making the boat or not taking a long time
NOT TO JUMP THE GUN, but...you will probably need a more aggressive pitch on the impeller for 100hp. it will most likely redline quickly, thus not using the full potential of the engine. kinda like being stuck in 3rd gear on a car. probably still fun, but not nearly as fast as it could be.
your skill on the lathe is awesome!!! but a tip i learned for safety that you might want to think about is , when using emery cloth / sand paper on a piece wile its spinning be sure its not so long that it can get snaged in the work piece and possibly wrap around and pull you in. i have seent some shit as im sure you have haha
Please do a colab with cleetus McFarland
Just two grown men in a tiny jet boat going powerwheels speed. Just what I needed to see today.
Underrated comment
lolololol
IKR!
I love your arc droid table. Nothing better than building the right hardware for your favourite gear, or sometimes even building your favourite hardware into your favourite gear.
Lol built lots of jet boats here in nz. This is going to be awesome. Intake could be an issue but keen to see if it works or causes cavitation at speed. Note the nozzle will work better out of the water as the nozzle velocity is way higher , watch the marthon racing boats for a demo of this. This caught bill hamitlon out when he built the first jet units as he had the nozzle exiting underwater but found the boat went way faster with nozzle above the water line.
(From a naval architect/boat engineer) Can't wait to see it all together! The shape of the jet drive kills be a bit though. If the interior volume of the drive should be more of a wedge shape and less of a mailbox shape. If it is more of a wedge shape (less vertical at the impeller bearing) you will get better flow and more thrust. The present shape will cause a lot of eddy making resistance and possibly cavitation.
So they'll only get 40knots at just over half throttle?
Was thinking the same as you but on the other hand I'd like to see them do more videos in the future, this is good enough to start with even if they have to change the impeller a couple of times haha
Seeing that demo with the drill at the end was GLORIOUS!
I have a feeling you are going to have issues with pump cavitation when you have the motor turning it. In my experience that cavity in the top of the pump will hold a pocket of air and the smaller size of the intake might limit the waterfowl into the pump causing the impeller to spin freely in that pocket of air
You might want to look into making something like a pump stuffer and increasing the size of the intake if possible
There is going to be a massive limitation on that haggard pump setup for sure.
They should really talk to people that know this stuff before going balls deep
I was thinking the same thing, def going to have more water trying to go out the back than is coming in, need an intake grate that promotes more intake flow, and a reduction nozzle might help it out
Made the same suggestion. They did an amazing job fabricating to the constraints but its not fit for purpose (as an intake) need to remove that 90 degree dead head
Yeah they should’ve either set the pump back a little more or kept the drive shaft a tad longer to help out with that or like you said a pump stuffer would be perfect
I deal with this stuff on standup jetskis
I would definitely look into make a scoop intake grate for that. With the reduced flow of water coming into the pump area you may run into so surging. Worx makes a great one to replicate.
As it is, this boat is going to cavitate constantly
Went well with the drill ! Going to be a handful with 100hp!
if it's that fast with a drill, then it's going to be insane with the real engine in it. Can't wait.
Makes me want to see an electric version with a big LiPo pack and a monster brushless motor! That Makita is just a little 5S2P lithium ion cylindrical pack and an ~300W motor and moves it OK, you could blast through a creek with a 5000W motor and big 14S pack!
@@username34159265 that was where my mind went! But batteries 🔋 weight a bunch! Then you'd have to 💧 waterproof the electronics to the MAX but 💯 % MAXIMUM torque at 1RPM, makes you start 🤔 thinking!...from Wyoming USA 🇺🇸 🤠
With that pump, that's about as fast as you are gonna see tbh
The day I stumbled on this channel watching you guys build the Barbie Jeep never thought the day would come for a mini jet boat you guys really have no limits and I love it.
There's already mini jet boats. I think calling it the Micro jet would be more suited to its actual size!
Or it could be called the Barbie power jet boat I don't know you know whatever LOL
But are they 100 hp?
@@reganyoung593 mostly 200+ and even 300+ hp are no exception. Look at the 2 cleetus mcfarland has.
Both of you in the lil drill powered jet boat was epic! Looking forward to the Full Send!
I love the property you guys have, absolutely beautiful spot
I love how that jet boat is coming together! That thing is going to scream once it's all done!
I love the compact plasma cutter stand! Very clever, as usual for one of your designs.
Hard to believe...but this might be your most insane project yet! 😁👍
to help cutting aluminum with your saw use some cutting wax also helps grinding it a lot. you should add some water to your plasma table to
Completely impractical, too small and super dangerous.. I've come to expect nothing less from Grind Hard. Love it!
He'll never be able to use it. Once that engine and the other stuff gets in there, he won't have any room.
So glad you all keep finding new projects, bring on more projects!
Keep up the amazing work guys!
Thanks
It’s so cool that you build stuff to build stuff! Killer boat and can’t wait to see full send!
Once again, our "Boy Genius" validates the saying "We have done so much for so long with so little that we can now do practically anything with nothing".
Can't wait for the next vid of this watercraft doing a full on send with a combustion engine!!!
🤣🤣🤣
Great stuff GHPC!!!!!!
These guys are innovators beyond their humility. Always impressed. Thanks for your channel, I learn something every time.
Because it's so small maybe a neoprene seal skirt, like whats used on whitewater kayaks would be good. I have no idea how you would do it, but I just think a lot of water could enter the boat from spray and waves, idk just a thought. Keep it up boys, loving the longer content 🔥👍
The amount of patients for perfection is to be admired 🙌🏻
Patience man. Doctors have patients, your teachers had patience.
Here's another one that you probably get wrong. Lose means you lost something, loose is what your mother is.
@@julianburns6632 your grammar teacher would be proud 😂
I've always joked that any tool when used precisely is a precision tool but Grind Hard makes it less of a joke and more of an ethos
I work up on Schweitzer Mountain. Every day I hope to see you kids up there playing with some awesomely odd contraption that enthralls me so much. So cool to see you grow and prosper. You all deserve it for the hard work put in. (Long time subscriber.)
I’m guessing the inside radius part of the intake might cause cavitation. The PWC’s have a gradual slope up to the back of the transom. I could be wrong with the cavitation and would work just fine. 🤷🏼♂️
Best bet for getting a good flow geometry and not destroying the impeller would be to lift a complete pump housing and tunnel off a PWC and just retrofit it.
Seat of your pants fabrication is one thing for easy stuff like suspension, but fluid flow systems are something I'd want a tested solution for.
100% will
Its a shame they couldnt go with traditional prop. 100hp jetboat will go like 50hp with prop. And like you say this will cavitate bad.The impeller will spin in mainly a vacuum and engine revs will raise to the limiter with little forward thrust.
31 is not that old. Love seeing the beautiful woods and love seeing all the little toy and projects makes me wanna start building crazy project like these. Love the content keep it up guys.
I feel like that water intake might be too restrictive to flow efficiently at 100hp. If it ends up cavitating badly I’d bet that’s the issue.
Yup. Hoping I'm wrong cuz they just did a lot of work
Yes,it would.That's why I suggested the scoop above.This will be going so fast and hardly have surface underwater.
100 HP is a lot of power in a tiny opening like that. 20 HP would probably be ok, maybe even 40 HP, but 100 HP? I fear they're going to suck a huge vacuum inside that tunnel. That cordless drill has maybe 300 W of power and the boat moved pretty fast. They want to increase that by 250 fold? Good luck! I don't think their water intake will have much more than water vapor inside it when cranked up to full power.
From a guy that built his own Jetstream , GOOD JOB on the intake ! I am impressed af!
That is some dandy Aluminum welding, Ethan! I've been welding for over 40 years and you impress me with your skill and technical savvy!
You guys cant even imagine how much i had fun by watching this. I just imagine that im on the boat with engines on ! SICK!!!
The life vest only, gave me a "Deliverance" vibe. I'm glad no one said, "squeal like a pig!" That boat is going to be stupid fast with 100 ponies. Am loving the build!
Loved the whole video. Very impressed with how the tunnel cover made from "17 different steps on the metal brake" turned out. Keep the content coming.
Promising test with that drill,
I have a feeling that thing is going to be a neck breaker!
Nice fab work,
Way cool! Surprised how the drill moved the boat with that much weight in it! Great craftsmanship!
Man you are such a smart young man I wish I would have had a friend like you to show me how to weld and make things
I'm so excited to see how well that 18 volt did on that jet.
A long travel offroad trailer would be sick! Can't wait to see the finished product. Keep up the good work guys!
When you're testing in the pond. All I hear is "ruba dub dub. two men in a jet boat". Lol. Awesome build guys!!!
The drill pushed that boat way better then I thought it would 👍🏻
I have to say that one of my favorite unspoken mottos of this channel is I.A.O. (improvise. Adapt. Overcome. No metal roller? No problem
I wish I had 1/10th of your fabrication skills. Just flat impressive!
I think your fabrication skills are amazing!
these guys are just casually expert machinists. so cool to watch👍🏼
You put so much love into this video.. .but I'm willing to bet a large sum of money that I loved this video more !!! Firstly the tiny hull is a buitiful peice of fabrication. But when you add the masterful design and fabrication that I witnessed just now.. this is really going to be the most talked about , watched , And desirable part of the collection. This is really exciting and epic !!! Guys this mini combination is so so very desirable already!!! I know in my mind's eye that this is going to be a viral situation once completed. I'm in oar with your genius and I'm sure you have the same effect on others.. good stuff !!!!! ,🤪👍
I just am smiling the whole time i watch your guys videos, i don't realize it til i'm done and my face hurts.
Might want to try smoothing out that transition above the impeller shaft. You have a good water seal now, but add something that will allow the water to smoothly fill the impeller inlet ring from the impeller shaft and up to the top of the housing near the ring. You’ll get much less air intrusion into the impeller, less cavitation in the inlet stream of water, and thus more power going into thrust than making bubbles.
Another 99.975 hp and that thing will rock! Might need a trip to Florida next Winter to play with Cleetus, the Boiz and the crock-o-gators.
I just noticed the Subaru head bolt T-handle wrench for the lathe…..LOVE IT!
Thing rips for just a drill. Nice fabrication to, definitely going to be following u guys.
Thats going to mental with a decent power plant driving it. It needs a full wrap done on it like Cleetus and Jackstand Jimmy.
Definitely doing a wrap!
Wow Ethan and crew you guys don't mess around when you start a project. If the wedding torch didn't break you would've finished! Can't wait to see the end product 💪👍
I think you might want a spoon shape in front of the water intake. Helps bring water in. I think there are aftermarket spoons you could look up for photo reference.
You get it running right it's going to be your sickest build
Yo!!! Your welding and fabrication skills are 10/10! Seriously impressive work
Ethan, you are an absolute savage of a fabricator! Love watching your creativity come to life!!
That one amazing piece of fabrication. That 18v drive cracked me up, so funny!
That pump tunnel is gonna be trouble
My favourite project of yours hasn't started yet . The awesome new shop in which you will build epic things .
Kudos guys. Really clean design and execution.
Man that reminds me of my grandpa's boats he used to build! Very cool
It’s amazing watching your ideas come to life.
Just subscribed when I watched you decide to go the extra mile and use the 18 volt drill !!! That's the kind of guys I want to see in videos!
That’s pretty sweet, can’t wait to see it rip with the gas engine!
Really enjoying the jet boat build!
For 26 you do some insane work! Love seeing the stuff you guys make, keep it up
lol...half of 62 is 31.
He is 31. 62 divided by 2 =31
@@guywy8310 I was gonna say... He for sure is older than me.
I just love how you guys make everything out of so little even though you have some great tools , soooo great to watch!!!!
Dude soo dang talented! I’m blown away by what you guys can do
That was great and made my day! I laughed, laughed, and laughed when you had it in the water.
Can’t wait to see this done most anticipated toy of the summer
I was thinking earlier today when will they finish the mini boat and then my question answered. 👍
Soon!
Ooh yeah! Makita power baby!
The drill and prop shaft appeared to have a pretty good wobble.
I saw that too. Especially from a dead stop.
Please get more of the Yeet Wrench and Bottle Openers in stock! I need one!
I so called a boat build a few videos before the announcement of this one. Had no idea you guys live so close to a major lake system out there. I can't wait till some proper snd footy is uploaded!
Awesome video. Might require a bit more R&D into that pump housing, but i'm no professional. Super glad you guys started this build.
It’s always a good video watching this guy work.
You guys in the boat with a drill was hilarious! Great stuff! Thanks for sharing!
That table is awesome! I used 1.5" square tube and it's been tested @ 3tons capacity.
Love the quality in this video! Music was awesome, and that boat is hilarious!
Yall are going to need a twin scoop intake grate with such a shallow intake. It will help a lot when trying to holeshot and midrange. It will also keep it from cavitating at high speed. Another bonus is it will slow you down fast when you let off the throttle. You can turn the one you have into a twin scoop intake grate. Look at pictures online and Ethan can do it under 10 minutes, lol.
just love ur show i learn from u all .even though i am mechanically in klined myself .some people get happy over foid or walking or whatever ,ME happy when i cutting metal or welding something from nothing just love making things come alive ,peace out u all keep the great builds coming .🙃
I love this little boat! Going to be so much fun to rip it!
Honestly super pumped for this build. it's going to be wild 😁🚤
Teflon the belly. Slides better on rocks/sand/snow. Same stuff sleds used on rails. Plus the extra protection from ripping aluminum. Love the build. Did one back in 16 with a 10'5" using a 650 kewi. 30mph got us in trouble.
I cant wait till this boat is finished
that makita putting in some work in that boat
Just a bit of info WD40 or CRC are your best friend when machining or drilling aluminium, stops the tool/drill from loading up and gives a beautiful finish. Also when cutting or grinding aluminium with a fiber disc use paraffin wax on the wheel and it wont load up and will cut like a hot knife through butter. Just use acetone to clean parts before welding.