I recommend throwing a bladder inside that tank. If one little thing makes a tiny hole, its all over. A fuel bladder would give you and the water outside of you a mile of security. I absolutely love how this is coming together though. Great work guys, its awesome. Edit: of course with a bladder, the need for an in-bladder feed and return arises. Tackle that how you will with the tank being the actual boat, it's still a massive amount of security for everything involved and in my opinion, well worth the extra work. If you have another solution im not thinking of though, fantastic.
@@TrevorDennis100 That just seals leaks/pinholes. A bladder is an internal bag sack typically made of Aramid fiber and elastomers, so if there is any crack in a fuel tank from an impact or any damage, it should be much harder for the membrane to fail. Races cars in which the Gas tank is not sealed in another compartment from the driver, require bladders.
@@robmanueb. Nah that's pretty much what jet boats are designed for. Super low creaks where you're skimming over rocks and logs and such. There are professional service on a lot of rivers that haul different stuff up these type of obstacles.
@@angrydingus5256 No-one in their right mind jumps a boat over logs or rocks. If you hit one by accident that is different story and much is unavoidable, but deliberately aiming for obstacles with a few to hitting them and getting air is a recipe for a broken boat. Been watching jet boat racing here in New Zealand all my life, they get into plenty of shallow stuff, more so than most places that race boats but have never seen one deliberately launched.
I'd highly recommend re-visiting the fuel tank. aluminum is strong, but big ass rocks are stronger. Maybe a slim, tall, and long fuel tank down the side of the boat? Even 3.5" wide to fit up under the gunwales would work. Or one that lays in the floor following the contour of the stringers. The point is, a double wall design is NEEDED. If you dump a full tank in the water your gonna hear about it!
7:10 NO! Do not place the fuel bung at the bottom of a tank. One of the requirements for ALL marine inspections "ALL FUEL MUST BE DRAWN FORM THE TOP OF THE TANK" AND FOR GOOD REASON! Imagine you kick that petcock, and it starts filling the bottom of your boat. Are you really going to enjoy sitting in a pool of gasoline? Just 'Ole Spice' some Octane on your nut sack...
Yeah i agree fully. Get one good hit on center, right about where the inner wall is and that wall will most likely have huge crack, fuel pouring out by the gallon right into your lap...ou and there is knowing these guys red hot exhaust right there in same compartment... i dont see any issue with this plan what so ever. On the positive note given how small this is, it probably will flip over in collision and there is water all around, but still getting body hair removal like that aint fun.
@@GrindHardPlumbingCo well if you rip your hull you don't spill 15 gallons of fuel right into the river, use your head bro.. you have to see the downside to doing it this way, i mean if you give a damn at all about the environment that is..
I mean really are they going to be hitting the same stuff that Cletus hits. come on it’s a mini jet boat not full size hitting trees and rocks at full speed. Cletus is rough on his boat. Not going to argue that something could happen just less likely. A bladder for the tank would solve that possibility though.
One of the reasons I watch this channel is Ethan's recycling program. I get that it's because you live in the stix, but it's inspirational to see how far you go and what you make out of the scraps of other builds.
The pipe you got is a good one, you’ll get a good 15hp increase over stock. You could easily make a custom water box. They are very simple in design. They serve 2 purposes, noise reduction and reducing the ability for water to back flow into the engine in the event the boat capsizes. Cut open the one that came with the ski to see what it looks like inside. It’s a little different than a car muffler. You can further quiet the boat down if you need to by adding cooling lines and running water directly to the water box to help spray additional water into it. It might be a good idea to mount the ebox to a wall to reduce the chance of it getting water inside. I would remove the oil tank and the oil pump from the front of the engine and run premixed fuel at 40:1 (as long as you’re confident in the front tank not leaking or sustaining damage). The oil pumps can fail. Just make a small block off plate for the front. Also, remove the crank case drain and make a block off plate for that (you can see a pics of these online for ideas). I spend most my free time tinkering with these engines & skis. These tips have worked well for me and are very common mods.
Gas tank concerns: These aluminum jet boats are fun and fast. Denting and fixing them is a very regular occurrence. For the gas tank design to be safe it would need a flexible fuel bladder. Just like what f1 uses. That way the gas tank can deform on a rock while keeping the fuel safe in a puncture proof pouch. Love the build!
What you need is a fuel cell for your gas tank. As a retired welder with over 60 years experience I can guarantee that your bulkhead will develop stress cracks almost immediately when running this boat. Then you'll be sitting in gasoline or you'll be surrounded by flames. It's your choice. Sometimes the quick and easy way is the worst way. Just my opinion.
You should consider using some of that fiberglass wrap for the exhaust. It makes a pretty big difference for keeping things running cool and creature comfort. Plus it looks sick
The exhaust is water cooled. The head pipe has a water jacket and injects water into the stainless chamber. You can put your hand on this pipe while it is running and not get burned. That’s why the rubber coupler in the middle of the 2 piece chamber does not melt.
Some of the most insanely resourceful work I have ever seen and your designin engineering is off of the charts, I wish I had a 10th of your skills! Keep up the killer content and as usual I'll be looking forward for the next one.
I'm gonna parrot everyone else on here and say: having the hull have a double function as a gas tank isn't the best idea. At the very least, you should put a fuel bladder in there in case of any leaks.
@@eriklarson9137 You're not too bright, are you? 🤣🤣🤣 Just because I don't post about it doesn't mean I don't know what I'm talking about. My parents owned a resort for years. I think I know a thing or two about boats, considering it was my job to maintain them. 🤣 But what do I know, I don't have a Nautical TH-cam channel, right?
Ehhhh not the best idea on the gas tank. One stick, rock or anything to put a micro hole in the hull and you have just contaminated your entire fuel tank leaving you stranded. Better put a large fuel/water separator and not send it to hard. Think your original idea of a separate tank mounted up inside was a better idea and would have kept the fuel safe from contamination.
Not to mention in the u.s. I believe that would be illegal, would have to be double wall to be legal edit: I guess he could put a bladder in it like an aircraft
And one of the bigger issues when it comes to boats because of all the nose weight from fuel it's going to be a nightmare to get on plane and stay on plane as fuel drains. There's pretty much all boats have nothing in the front half.
Not to mention river or lake contamination if you punch a hole large enough to drain the whole tank into the water. He could always add Armour to the outside but even still the fuel is in a very vulnerable location.
There's a certain office building in town i hate. Their driveway to the parking lot floods a lot when it rains hard, they even put on "waterproof" extra front doors. It's super great lot/building design, nowhere near water, they built *below* road grade for their entrance 😂. I want one of these to rip around in their puddle, it's plenty deep and big enough.
Why zero videos on your channel? Why state that you have expertise in something while on TH-cam, with zero evidence to back it up? I mean... I have my ideas. You posting some videos would change my mind. Otherwise not so much...
I so enjoy watching you work at your age I was the working on diesel engines and never had the money or time to do what you guys are doing I would love to relive that time. love you ideas
The oil injection system is not entirely good. I’d recommend you get the block off plates for the oil injection system. And just premix from personal experience with my x-2.
Instead of having a generic gas cap, you should cast some sort of hood ornament similar to the spirit of ecstacy. Probably could do it with lost pla 3d print casting.
Can’t wait til you guys get it on the water! My son wants to build one now, we would probably just go with a js300 engine. He doesn’t need that much power. Keep up the good work.
Before you send that thing through a swamp, consider putting a thick plastic sheet on the hull as a protector. Think screen protector for your phone. If not a sticker, then maybe a layer of epoxy.
Or manifold pipe. Im pretty sure sled 2t engines are more crazy. A 1000 tigershark jet ski makes 135hp and the same year 1000 thundercat sled makes 172hp. A 900 Kawasaki stx triple 2t jetski makes only 100hp and my old arctic cat 530 twin makes 100hp.
@@adamsmith5913 you're 100% correct, sled motors are nasty. Some of the fastest snowmobile's out there use watercraft bottom ends with sled jugs. Look into the 1200 sled/watercraft polaris builds. 300+hp is attainable with them.
Yeah water boxes are pretty important the water that through acts like an extra amount of back pressure that cools the exhaust that helps the motor run cooler every waterblock has a special designed to prevent water from going back up into the engine too
Yall are awesome fr! Watching these crazy builds gets me so inspired to do stuff myself, u guys have gotten so much better at everything and learnt a lot from experience, PLEASE keep on doing this stuff, it really brightens up many ppl's day. Love from Sweden
genius, but if you get any hole you and the environment are fucked...boats ALWAYS use double wall tanks or at least a bladder so you get no leaks if you hit a rock or stick
Line the bottom of the boat with 5/16" or 1/4" Delrin sheet. It will make it slide over rocks an logs and protect the bottom of the boat from holes including your gas tank. It will really bullet proof your set up and it's pretty light.
😃 *This is the video I've been waiting for.. It's more fun to watch the process than it ends 👌* 22:10 *BTW, the BMW exhaust is produced in my country (INDONESIA) to be precise in the Purbalingga area (almost one sub-district of exhaust artist craftsmen).*
I was actually thinking about using the hull for the gas tank but my only concern is leaks if you dent the front. Also I'm wondering how bad low speed stability will be with weight bias forward as it looks to be. I guess we will see 👀
It’s got a motor for a vessel like twice its size it should be fine. And nothing they can’t fix with a retractable rudder for slow speed manoeuvrability
Bit risky having a single skin tank in the cockpit of the boat given the abuse JetBoats tend to get, Not watched all the video but I hope to god to include a lot more protection than the single skin hull.
For the exhaust option i can help on that! don't use the catalytic converter since it will heat up like crazy and create allot of back pressure! it will easily clog since it's a 2Stroke! What i suggest is running the exhaust under the rear deck and in the water with a proper Water Box With a pipe arrangement to lock water also called WaterLock! that will not only muffle the sound but it's also the proper marine equipment! if you want this jetboat to be reliable and proper i suggest doing those before ending the build! Other than that i enjoy the build allot! you guys rock on machining and creating! I've been watching since you guy's announced the jetboat build
It was the same story for me Max. I saw the pic and Mini Jet boat & 100 hp in there somewhere and I had to check it out. But after my eyes were opened by the mini jet I found all the other insane builds and shenanigan's. I really enjoy Grind Hard Plumbing Co. & hope they keep putting out awesome content like they have been. Now back to this boat shaped gas tank, they will be lucky if they don't sink the first time they really get on the throttle and even if it gets up and goes it will still be sketchy and kind of not very practical, which is what I love. I am sure they will not be running this boat like a normal boat owner. It will probably be a few segments for the channel and the like. I guess what I am saying is I found them the same way you did and I agree with you and all the other people who have brought up reasonable and practical issues. I do think some people do get too wound up over a crazy backyard build. Any way I identified with your GHP discovery story. Cheers
Ethan is so proficient at fabricating, that he can make even the most basic of parts faster than a trip to the hardware store. "Why take a trip and buy 10 screws when I only need one? I'll just make it real quick." Wild.
I love how you can operate the lathe. Not many people know how to use those old machines anymore cause it’s all by computer now. I tip my hat to you sir!
I have a 750sx set up as limited ski for racing. Limited do not require a waterbox. it's just louder. Performance does not decrease it increases. Dump the oil injection because the only way to tell when the pump dies is a seized engine.
Definitely once you and boosted boys have theirs done. We the audience need a collab between you, boosted boys, and cleetus mcfarland taking the jet boats out to some narly rivers!
You should bring that to the Clackamas River in Oregon when it's finished. We invented the sport of shooting the rapids going upstream. No exaggeration. Bring it.
Super cool project. Constructive input: I would have pressurized the cell with air and sprayed soapy water to inspect for leaks instead of having to contaminate the cell with water. And I would make sure to add some one way vents ( oem seadoo vents are good for 1.5) to allow for air displacement in the cell
I think you should take the jet boat as soon as it's done and head your way down to the freedom factory and collaborate with cleetus and also kyle from boostied boiz with there jet boats also and also James and cleets brother who got the other jet boat ,,, the 3 channel collaboration would be super dope
This is a great build and your videos are great, but, please secure this gas-tank more. What if you hit a rock or something, contaminating a whole lake.. I'm sure you have a good idea to fix it! Thanks for the video
100 percent agree. The original idea tacked in with a couple of inches of room around the tank would be ideal. Awesome build though guys keep em coming!
Hey guys, if you guys can find a new trim box, you could put trim tabs on the back of the boat to get it plane out faster. Just a thought. Awesome work. ;-)
A couple of things with this build.. which I love! speaking from experience you’re going to need trim tabs. Also I’m betting with that short of a jet intake you’re going to have cavitation. Best luck can’t wait to see the end result.
Off to the spinny spinny thing👍🤣. I use to work for a company that made eletric scooters chairs for the elderly. I know it takes alot of work to do all that. Love the videos.
You know you should plan order of operation. This will save your back 😉 Anyway great build. I dream that i will have garage and build crazy things there
I’d make a rubber bladder to line the gas tank. That way any small hole in a weld or crack in the hull won’t mix fuel and water or leak fuel.
Yup that's right
This
Meh. It's not an ocean traveling vessel. If it leaks, drag it back in for some TIG welding.
@@eyeballengineering7007 yeah sure, just leak fuel all into your boat and or the river… smart.
There's a sealant called redkote to do that. I use it all the time for doing antique tractors and engines
I recommend throwing a bladder inside that tank. If one little thing makes a tiny hole, its all over. A fuel bladder would give you and the water outside of you a mile of security. I absolutely love how this is coming together though. Great work guys, its awesome.
Edit: of course with a bladder, the need for an in-bladder feed and return arises. Tackle that how you will with the tank being the actual boat, it's still a massive amount of security for everything involved and in my opinion, well worth the extra work. If you have another solution im not thinking of though, fantastic.
Great idea
@@TrevorDennis100 That just seals leaks/pinholes. A bladder is an internal bag sack typically made of Aramid fiber and elastomers, so if there is any crack in a fuel tank from an impact or any damage, it should be much harder for the membrane to fail.
Races cars in which the Gas tank is not sealed in another compartment from the driver, require bladders.
@James Monroe I thought Cleetus was the only one dumb enough to try jumping logs with a boat?
@@robmanueb. Nah that's pretty much what jet boats are designed for. Super low creaks where you're skimming over rocks and logs and such. There are professional service on a lot of rivers that haul different stuff up these type of obstacles.
@@angrydingus5256 No-one in their right mind jumps a boat over logs or rocks. If you hit one by accident that is different story and much is unavoidable, but deliberately aiming for obstacles with a few to hitting them and getting air is a recipe for a broken boat. Been watching jet boat racing here in New Zealand all my life, they get into plenty of shallow stuff, more so than most places that race boats but have never seen one deliberately launched.
I'd highly recommend re-visiting the fuel tank. aluminum is strong, but big ass rocks are stronger. Maybe a slim, tall, and long fuel tank down the side of the boat? Even 3.5" wide to fit up under the gunwales would work. Or one that lays in the floor following the contour of the stringers. The point is, a double wall design is NEEDED. If you dump a full tank in the water your gonna hear about it!
7:10 NO! Do not place the fuel bung at the bottom of a tank. One of the requirements for ALL marine inspections "ALL FUEL MUST BE DRAWN FORM THE TOP OF THE TANK"
AND FOR GOOD REASON! Imagine you kick that petcock, and it starts filling the bottom of your boat. Are you really going to enjoy sitting in a pool of gasoline?
Just 'Ole Spice' some Octane on your nut sack...
rubber bladder in the tank
Yeah i agree fully. Get one good hit on center, right about where the inner wall is and that wall will most likely have huge crack, fuel pouring out by the gallon right into your lap...ou and there is knowing these guys red hot exhaust right there in same compartment... i dont see any issue with this plan what so ever. On the positive note given how small this is, it probably will flip over in collision and there is water all around, but still getting body hair removal like that aint fun.
I'm pretty sure they are not taking 100HP 6' boat down a little stream. lmao
Thank you, exactly!
A bladder tank would have been a good idea to put inside of the tank. At least it would be another layer of protection.
Needs it
No need for a bladder if you put marine sealant on your welds
Ooooo risky move with the gas tank. Based on how Cleeter ripped his hull a couple of times already, not sure.
Gotta watch out for the nose.
I mean, is it really worse to rip your gas tank open than just rip the hull? You’re kind of screwed either way.
@@GrindHardPlumbingCo you're not dumping gas into the environment if you *only* rip into your hull.
@@GrindHardPlumbingCo well if you rip your hull you don't spill 15 gallons of fuel right into the river, use your head bro.. you have to see the downside to doing it this way, i mean if you give a damn at all about the environment that is..
I mean really are they going to be hitting the same stuff that Cletus hits. come on it’s a mini jet boat not full size hitting trees and rocks at full speed. Cletus is rough on his boat. Not going to argue that something could happen just less likely. A bladder for the tank would solve that possibility though.
@@GrindHardPlumbingCo Maybe compromise and put a bladder in the tank?
One of the reasons I watch this channel is Ethan's recycling program. I get that it's because you live in the stix, but it's inspirational to see how far you go and what you make out of the scraps of other builds.
Recycling isnt in the vocabulary of the woods lol
Bruh
I would much rather work with someone who sees value in scraps than someone who can just go buy what they need.
The pipe you got is a good one, you’ll get a good 15hp increase over stock. You could easily make a custom water box. They are very simple in design. They serve 2 purposes, noise reduction and reducing the ability for water to back flow into the engine in the event the boat capsizes. Cut open the one that came with the ski to see what it looks like inside. It’s a little different than a car muffler. You can further quiet the boat down if you need to by adding cooling lines and running water directly to the water box to help spray additional water into it. It might be a good idea to mount the ebox to a wall to reduce the chance of it getting water inside. I would remove the oil tank and the oil pump from the front of the engine and run premixed fuel at 40:1 (as long as you’re confident in the front tank not leaking or sustaining damage). The oil pumps can fail. Just make a small block off plate for the front. Also, remove the crank case drain and make a block off plate for that (you can see a pics of these online for ideas). I spend most my free time tinkering with these engines & skis. These tips have worked well for me and are very common mods.
@211 Ethan just hand-milled two hose barbs for the fuel tank. I think OP had it right.
15hp gain 😂😂
And he just cut it up lol pipe and manifold was worth a lot
@211 PJS USA is the new shit they’re bringing back
PJS old shit was good.
That’s a $1000 pipe here in ca lmao not sure where you are
@211 obviously factory pipes are the way to go but PJS old shit was good
SOUNDS INSANE!
Yewww
Gas tank concerns: These aluminum jet boats are fun and fast. Denting and fixing them is a very regular occurrence. For the gas tank design to be safe it would need a flexible fuel bladder. Just like what f1 uses. That way the gas tank can deform on a rock while keeping the fuel safe in a puncture proof pouch. Love the build!
What you need is a fuel cell for your gas tank.
As a retired welder with over 60 years experience I can guarantee that your bulkhead will develop stress cracks almost immediately when running this boat. Then you'll be sitting in gasoline or you'll be surrounded by flames. It's your choice.
Sometimes the quick and easy way is the worst way. Just my opinion.
Na he needs a 25L camelback filled with premix and a beer helmet for reserve
Put the explosive liquid at the crashy end
.. true GHP engineering 😅😅 it ain't fun if it ain't dangerous 👍👍
You should consider using some of that fiberglass wrap for the exhaust. It makes a pretty big difference for keeping things running cool and creature comfort. Plus it looks sick
The exhaust is water cooled. The head pipe has a water jacket and injects water into the stainless chamber. You can put your hand on this pipe while it is running and not get burned. That’s why the rubber coupler in the middle of the 2 piece chamber does not melt.
As long as water is flowing properly the pipe will only get warm but never hot.
Awesome build, love your stuff. I like the feature of the driver being presoaked in fuel before the ignition by the engine for extra crispness lol.
Flame-broiled makes everything more betterest
Ethan: "I'm out of TIG rod"
Lathe: "Say no more"
That blew my mind. 🤯
You guys are super inspiring, greetings from norway 🇳🇴🇳🇴
Thanks so much!
Wow
Some of the most insanely resourceful work I have ever seen and your designin engineering is off of the charts, I wish I had a 10th of your skills!
Keep up the killer content and as usual I'll be looking forward for the next one.
seriously this guy is a low key genius in a shed!
I'm gonna parrot everyone else on here and say: having the hull have a double function as a gas tank isn't the best idea. At the very least, you should put a fuel bladder in there in case of any leaks.
Oh be quiet
@@rad1ist mmmmmmm no
Let's head on over to your channel to see what level of expertise you wield... Oof.
@@eriklarson9137 You're not too bright, are you? 🤣🤣🤣 Just because I don't post about it doesn't mean I don't know what I'm talking about. My parents owned a resort for years. I think I know a thing or two about boats, considering it was my job to maintain them. 🤣 But what do I know, I don't have a Nautical TH-cam channel, right?
Its fine
Ehhhh not the best idea on the gas tank. One stick, rock or anything to put a micro hole in the hull and you have just contaminated your entire fuel tank leaving you stranded. Better put a large fuel/water separator and not send it to hard. Think your original idea of a separate tank mounted up inside was a better idea and would have kept the fuel safe from contamination.
Right looking at were cleetus just put a hole in one of his jet boats this is deffinatley in a danger zone I'd stick it in back
Not to mention in the u.s. I believe that would be illegal, would have to be double wall to be legal edit: I guess he could put a bladder in it like an aircraft
And one of the bigger issues when it comes to boats because of all the nose weight from fuel it's going to be a nightmare to get on plane and stay on plane as fuel drains. There's pretty much all boats have nothing in the front half.
Exactly what I was thinking…
Not to mention river or lake contamination if you punch a hole large enough to drain the whole tank into the water.
He could always add Armour to the outside but even still the fuel is in a very vulnerable location.
There's a certain office building in town i hate. Their driveway to the parking lot floods a lot when it rains hard, they even put on "waterproof" extra front doors. It's super great lot/building design, nowhere near water, they built *below* road grade for their entrance 😂.
I want one of these to rip around in their puddle, it's plenty deep and big enough.
Super excited about this build. It’s a first for y’all and I’ve seen the other builds which are absolutely wild. Keep up the hard work💪
As a boat builder that's not the idea I'd go with for the fuel tank, but I would definitely go with a sealed cap vs that vent cap.
Why zero videos on your channel? Why state that you have expertise in something while on TH-cam, with zero evidence to back it up? I mean... I have my ideas. You posting some videos would change my mind. Otherwise not so much...
@@eriklarson9137 Stay in your lane squirrel cleaner😂
@@eriklarson9137 lmfao hush fool.
chef woukd go ektrc lihum batries
I love watching you work and the pure talent you have to just freehand anything
The idea of making a tank like this seems good, but what about if you hit something and it punctures the tank?
Ummm yah , as long as h doesn’t go boating with Cletus mc farland
@@davestevens4263 umn, boats are supposed to have double wall tanks for a reason...
I so enjoy watching you work at your age I was the working on diesel engines and never had the money or time to do what you guys are doing I would love to relive that time. love you ideas
The oil injection system is not entirely good. I’d recommend you get the block off plates for the oil injection system. And just premix from personal experience with my x-2.
Absolutely, past 2stroke skis. Convert to premix was the 1st mod
Instead of having a generic gas cap, you should cast some sort of hood ornament similar to the spirit of ecstacy. Probably could do it with lost pla 3d print casting.
Can’t wait til you guys get it on the water! My son wants to build one now, we would probably just go with a js300 engine. He doesn’t need that much power. Keep up the good work.
just bjuy hi picnick boat 2x375 orc2 440 hp dusel jet 37 fit yaght 12400 piubd dry wigh 11.5 foot beam
How awesome! Making the front of the boat into a gas tank, using parts of another gas tank, and welded together with filler rod made of gas tank lol.
Oh this will be one of the most awesome things you guys have built!
I think so!
Thanks man! We agree!
Ethan's new tshirt idea! "If only I'd brought a crescent wrench." 👕
Before you send that thing through a swamp, consider putting a thick plastic sheet on the hull as a protector. Think screen protector for your phone. If not a sticker, then maybe a layer of epoxy.
PTFE. Cutting board material... It's very tough, easy to heat bend to the shape of the hull, and pretty cheap in large sheets.
Jetstream likely have plastics for this boat
That mystery exhaust part is called a head pipe, i love that you guys are doing jet ski stuff. Where some of the baddest 2 strokes are hiding
Or manifold pipe. Im pretty sure sled 2t engines are more crazy. A 1000 tigershark jet ski makes 135hp and the same year 1000 thundercat sled makes 172hp. A 900 Kawasaki stx triple 2t jetski makes only 100hp and my old arctic cat 530 twin makes 100hp.
@@adamsmith5913 you're 100% correct, sled motors are nasty. Some of the fastest snowmobile's out there use watercraft bottom ends with sled jugs. Look into the 1200 sled/watercraft polaris builds. 300+hp is attainable with them.
@@drewdiamond1665 cool I didnt know that, jet ski cranks must be really solid to stand up to the high rpm abuse
Glad to see people actually putting a muffler on their crazy projects for once. You only get one set of ears
BoHo
We gotta have something to Disturb the peace 🤪💩🤔🏆
Atlas lathes are known for getting grooves in the ways especially if they are never cleaned. The chips get under the wipers and act like sandpaper.
Yeah water boxes are pretty important the water that through acts like an extra amount of back pressure that cools the exhaust that helps the motor run cooler every waterblock has a special designed to prevent water from going back up into the engine too
i love the way you explain everything and you don’t even pause to think it just comes out perfectly.
It never gets old seeing how long of a chip you can make
Yall are awesome fr! Watching these crazy builds gets me so inspired to do stuff myself, u guys have gotten so much better at everything and learnt a lot from experience, PLEASE keep on doing this stuff, it really brightens up many ppl's day. Love from Sweden
Building the gas tank into the boat was genius! Can’t wait to see the first test rip!👌👍
genius, but if you get any hole you and the environment are fucked...boats ALWAYS use double wall tanks or at least a bladder so you get no leaks if you hit a rock or stick
Line the bottom of the boat with 5/16" or 1/4" Delrin sheet. It will make it slide over rocks an logs and protect the bottom
of the boat from holes including your gas tank. It will really bullet proof your set up and it's pretty light.
úñkoik móon raker yaghts ¹65 foot yàght 2 dusel jeys
😃 *This is the video I've been waiting for.. It's more fun to watch the process than it ends 👌*
22:10 *BTW, the BMW exhaust is produced in my country (INDONESIA) to be precise in the Purbalingga area (almost one sub-district of exhaust artist craftsmen).*
I completely forgot it was Friday going hard plumbing day hope you guys are having an excellent Friday and hope you have a great weekend
Thanks man! Hope you have a good weekend too!
I was actually thinking about using the hull for the gas tank but my only concern is leaks if you dent the front. Also I'm wondering how bad low speed stability will be with weight bias forward as it looks to be. I guess we will see 👀
It’s got a motor for a vessel like twice its size it should be fine. And nothing they can’t fix with a retractable rudder for slow speed manoeuvrability
Make the exhaust into a flagpole straight up from the middle of the back of the boat, with a skull cap so the smoke comes out the eyes and mouth.
Bit risky having a single skin tank in the cockpit of the boat given the abuse JetBoats tend to get, Not watched all the video but I hope to god to include a lot more protection than the single skin hull.
For the exhaust option i can help on that! don't use the catalytic converter since it will heat up like crazy and create allot of back pressure! it will easily clog since it's a 2Stroke! What i suggest is running the exhaust under the rear deck and in the water with a proper Water Box With a pipe arrangement to lock water also called WaterLock! that will not only muffle the sound but it's also the proper marine equipment! if you want this jetboat to be reliable and proper i suggest doing those before ending the build! Other than that i enjoy the build allot! you guys rock on machining and creating! I've been watching since you guy's announced the jetboat build
It was the same story for me Max. I saw the pic and Mini Jet boat & 100 hp in there somewhere and I had to check it out. But after my eyes were opened by the mini jet I found all the other insane builds and shenanigan's. I really enjoy Grind Hard Plumbing Co. & hope they keep putting out awesome content like they have been. Now back to this boat shaped gas tank, they will be lucky if they don't sink the first time they really get on the throttle and even if it gets up and goes it will still be sketchy and kind of not very practical, which is what I love. I am sure they will not be running this boat like a normal boat owner. It will probably be a few segments for the channel and the like. I guess what I am saying is I found them the same way you did and I agree with you and all the other people who have brought up reasonable and practical issues. I do think some people do get too wound up over a crazy backyard build. Any way I identified with your GHP discovery story. Cheers
Ethan is so proficient at fabricating, that he can make even the most basic of parts faster than a trip to the hardware store. "Why take a trip and buy 10 screws when I only need one? I'll just make it real quick."
Wild.
You are one of a handful of genius craftsmen on TH-cam. Truly mesmerizing.
Sounds like perfect second channel name for you guys "Grind Hard Recycling Co".
Awesome video guys! I can't wait to see this thing rip around on the water!!
I love how you can operate the lathe. Not many people know how to use those old machines anymore cause it’s all by computer now. I tip my hat to you sir!
I sure hope one day you get to collab with ole cleeter, would be such a blast. This boat is going to be ROWDY!!!
Super sweet! Can’t wait to see it in the water.
My first discovery of your channel! Excellent! Got me now.
I have a 750sx set up as limited ski for racing. Limited do not require a waterbox. it's just louder. Performance does not decrease it increases. Dump the oil injection because the only way to tell when the pump dies is a seized engine.
I liked the sound of the engine at high revs at the beginning of the video. Very expensive high-quality exhaust sound👍
The moment I’ve been waiting for since the announcement of the project!
Yeeeees finally! You guys are awesome, wish I could do the same and having my own little shop. All the love from Sweden 🇸🇪💙💛
Very cool. That stainless exhaust looks and sounds awesome
New achievement: Brazilian Welding - Use whatever you have at hand as welding wire. Btw the gas cap on my car was welded on with barbed wire.
its cool that when you weld the cap stem on you can see the metal changing with temperature during the time laps.
I cant wait to see the over the top trailer they make for the boat
It will be amazing!
Oh yeah! We can’t wait either!
Definitely once you and boosted boys have theirs done. We the audience need a collab between you, boosted boys, and cleetus mcfarland taking the jet boats out to some narly rivers!
Looking and sounding stellar!
This is quickly become my favorite project
That little ripper is going to be the most terrifyingly awesome thing in the water!
I’m pumped about this whole build! I want a mini jet boat so bad haha
Definitely put a bladder in that tank though!
Ethan is so cool I wish I had a friend like Ethan.😢
The reason I like this show is how good yall utilize the welder. If it doesn't fit, cut it an weld it so it does. Nice reuse of millings too
The sound when it first started was awesome
You should bring that to the Clackamas River in Oregon when it's finished.
We invented the sport of shooting the rapids going upstream. No exaggeration.
Bring it.
Super cool project.
Constructive input:
I would have pressurized the cell with air and sprayed soapy water to inspect for leaks instead of having to contaminate the cell with water.
And I would make sure to add some one way vents ( oem seadoo vents are good for 1.5) to allow for air displacement in the cell
I think you should take the jet boat as soon as it's done and head your way down to the freedom factory and collaborate with cleetus and also kyle from boostied boiz with there jet boats also and also James and cleets brother who got the other jet boat ,,, the 3 channel collaboration would be super dope
This is a great build and your videos are great, but, please secure this gas-tank more. What if you hit a rock or something, contaminating a whole lake.. I'm sure you have a good idea to fix it! Thanks for the video
100 percent agree. The original idea tacked in with a couple of inches of room around the tank would be ideal. Awesome build though guys keep em coming!
I’m so stoked! I can’t wait to see that rip.
Same motor in my 750sts. Awesome motor. I love my older ski. Super reliable motor. It just works.
ñew oñé béytrerr
You guys should take your boat and play with Cletus McFarland and theirs. I'd love to see you guys rip it up together
Hey guys, if you guys can find a new trim box, you could put trim tabs on the back of the boat to get it plane out faster. Just a thought. Awesome work. ;-)
Using a fuel bladder inside the gas tank would make this build 200% safer. I would highly recommend a double walled gas tank, no matter the nature
The coolest mine jet boat ever 👌😁🌟🌟🌟🌟🌟💕😃👍 allsome work from cruzermans inventions 😁👌
I am very excited with this build, keep on going!
Id love to see a collaboration with Cleetus McFarland an his jet boats!!!!
I like how they look at other utube channels and use there ideas to this channel hell yeah brother
How have I never notice Ethan's hand tat thats awesome I love it
Dude fabricated two perfect fittings for the fuel lines himself. This dude is insanely talented
A couple of things with this build.. which I love! speaking from experience you’re going to need trim tabs. Also I’m betting with that short of a jet intake you’re going to have cavitation. Best luck can’t wait to see the end result.
I would love to see someone go surprise theses guys wit 1 of those pre fabbed pole barns aka a nice size new shop I think that would be amazing
17:17 wheelie bar on the barbie camper looks sick
its like a go kart version of a jet boat ..this thing would be so fun to ride...i want one ..
Off to the spinny spinny thing👍🤣. I use to work for a company that made eletric scooters chairs for the elderly. I know it takes alot of work to do all that. Love the videos.
I bet these guys made some AWESOME bongs back in high school.
Would've put my soda bottle and pen cap to shame.
Might want to put some baffles in the "gas tank". That's a significant enough volume on that boat that the slosh might cause you some problems
This is magical . Love it
I wish yall could make a 2 story fan boat that would be really cool idk why I just had that idea but you would have a lot of videos for it
Nice work guys. Remember to order a metal deburring scraper. 😉
You know you should plan order of operation. This will save your back 😉 Anyway great build. I dream that i will have garage and build crazy things there
More crazy clever engineering solutions! Well done! I'm seriously looking forward to seeing that little boat screaming across the waves!
When I seen this video about the jet boat. I got SO EXCITED 😆🙏😁
Please take the boat out with the cboys like the description said. That would be such a cool video!