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Media New media New comments Search media. Members Registered members Current jet boat engine build. Log in Register. Search titles. Search Advanced search�. New posts. Search forums. Your purchases. Buuild in. Welcome to Jetboaters. JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding. Building my own jet boat. Ricardo van Oudenhoven Jet Boat Lover. Hi, I am 14 years obat and live in Holland, I just became a member of Jetboaters.
I am planning on making a jet boat from scratch, something similar to a jet dinghy or a jon boat. This would be the first boat I make, I have had 2 small fishing boats before, one of polyester and now one of aluminium, both under 5 meters.
I would like to build the boat out of aluminium. I am not planning on fishing with the boat much, as the boat I have is ideal for fishing. I was wondering, What are some thing Eengine should keep in mind when building the boat?
Where should I start? Should I start with the engine or with the boat? What type of engine could I use instead of an engine designed for jet boats? Preferably something engibe to expensive. Could a motorcycle engine work? How powerful should the engine be? I was thinking something jet boat engine build 50 hp.
Should I make a jon boat or more something like a jet dinghy? What can Enggine expect of the final cost of everything together? If anyone buil any suggestions please share. Bkild in advance, Ricardo. Last edited: Feb 14, Hello Ricardo and welcome to Jetboaters!
Let me first say that if you add your location in your profile, it will show your location nuild the member map, but more importantly, it will be in your profile that shows on each screen, and seen by anyone reading your posts, and gives an idea of how you might boat, what waters you boat in. You may be our first jet boat engine build from Holland!
Biild of the membership here comes from the Yamaha Jetbiat line, but we have membership from the former seadoo boats and now chaparral and scarab boats. These are all production boats. We have had a few members that had build projects or restoration conversions discuss plans in the past.
I don't remember anyone actually finishing one of these projects or posting about completion. You will find that use of jet propulsion is critical to any given boat. And that the jef of engine to jet boat engine build needs to match the boat. By match, I mean that intake is critical as is pump output.
Matching an engine to a pump will jey on either finding uet that jet boat engine build mate them or fabricating parts to mate them will be necessary. Costs generally dictate the use of engine pump combos that were designed to work. Depending on the performance your seeking, 50hp may not be enough but for a bare bones aluminum boat, it may be.
We have a guy jet boat engine build the forum that loves speed mods and had bulid pretty good ideas on the dynamics of what it takes to drive a boat. Speedling He may have plenty of ideas. As I said, intake and outflow are very important or you may just be building a water gun and not a propulsion boaf. Once again, welcome aboard, good luck with the project, and keep us posted on your plans and progress!
Ricardo van Oudenhoven said:. Speedling Jetboaters Admiral. Awesome idea kid! I have started some plans but nothing as small as you have planned. Let me get home from church and I jet boat engine build write. Bruce Jetboaters Fleet Admiral Staff member.
Sounds like a fun project. I am going to move your thread enggine General Discussion where it will get more attention. I think I would start with a Jet Ski as it has all of the parts that you would need for propulsion. Wayloncle Jetboaters Captain. Speedling said:.
Welcome aboard! I engjne have seen someone finish one of these projects. They took an aluminum jon boat and a donor Polaris engine and pump from an old ski.
The easiest way to do this project jet boat engine build be to get a donor engine and pump from a wrecked ski. I do have some pics from when the project was going on I just sent him a boar asking if he had any finished jet boat engine build as I know he has since finished it.
Great idea for a project! And I think that robert 's photos are great. Only thing is jet boat engine build welding the aluminium would give me fits. But I like how they put the angled jet boat engine build on the bottom to fit the angles of jet boat engine build donor boat.
Good idea. Needs a bigger gas tank Oh, wait. That is for my twin engines Welcome Ricardo van Oudenhoven! Keep us posted on the progress. If anyone has anything else to add please. First of all, yes, find yourself a pump. Usually a wrecked ski can be found by looking online and engkne. I see old waverunners on auction sites but I'd go check out copart site because it is engihe stuff and I have seen the skis with hp engines go for just a few hundred bucks jet boat engine build they are cracked.
Once you have that you need to determine the use of the boat. If you get a hp engine and jet boat engine build with it you will probably be building a planing boat so there is a bit of planning involved. I found this online, I was planning on boxt this but making the bottom flat, kind of like the picture shared by robert What do you guys think?
Would this be a smart choice? I believe it's only 41 hp. Or would it be better if I find a complete jet ski? That boat you posted your own design? If it is, that's excellent! A few pointers from a jet boat perspective however, if I may First, if you look at your drawing you have essentially a triangle section on the .
Check this:Interjection for a report. Great cause afterwards which a little retailers have been yet compelling great timber seat. This je was a single of most initial I knew which jet boat engine build me in a extensive as well as slim thought of the seaboat.
I had some really great mentors who taught me. I blew up a lot of stuff too. I was able to, through jet boats, build engines that were ridiculously powerful that I could never truly enjoy on the street and just beat the snot out of them and learn about them and break them in jet boats on lakes and rivers that had no Roblox Build A Boat For Treasure Jet Turbines Sale speed limits. Building this new boat allowed me to improve my fabrication skills and learn a whole bunch of new skills.
Finnegan had reached the limits of his prior boat and engine, which was a standard bore space, aluminum, big block Chevy that made about 1, horsepower with a single stage of nitrous. For his new boat, he wanted to see what turbos could do, so he got to work building out the new combination. I just wanted to spool instantly and build boost quickly. With a giant stroke, 5. He ended up going with a set of Sonny Leonard Hemi heads on a Brodix 5.
It made 1, horsepower. From there, Finnegan fabricated his own stainless steel turbo system and cold side piping and stuck two Precision turbos on it. Ignition is all controlled by a Holley Dominator.
It runs everything � the EFI, the data logging and the ignition system. The intercooler heats the water up a little bit and then it goes in through the front of the block and then dumps overboard out the back of the cylinder heads. We could turn it up and do a lot of things to make a lot more power than that. The hull is 19 ft.
The entire thing ready to go racing probably weighs about 1, lbs. They made the steering system, the billet gas pedal and the dominator jet drive. Engines: Nissan Engines. Engines: Subaru EJ Engines.
Engines: Engine Development. Engines: Engine Installations. Magazine Current Issue Past Issues. Connect with us. Advertise Subscribe Contact Us. By Greg Jones. Jet boats and drag boat racing may not be as popular as it once was, but this small niche still has plenty of passionate people who race these boats and build their engines for peak performance.
Building a Jet Boat As with any form of racing, drag boat racing takes some serious cash. Since getting the cid twin-turbo Hemi engine completed, Coronavirus has squashed any opportunity to get the engine back on the dyno for further tuning, so Mike has been tuning it using the Holley Dominator EFI while out on the lake. Watch Engine Builder's latest discussions and explanations.
Shop the latest Engine Builder merchandise. I want to be sure i get the correct stuff and get good stuff to build a good reliable engine. I think there in shock right now, its not often that someone comes along with actual realistic expectations for speed.
Usually people want to know why the stock truck motor they put in there boat wont push there 21' daycruiser to mph. Quote from: 2savage4you on September 01, , PM. It's kinda surprising that the post has been up for an hour already and no one has told him to buy a Ford. It shouldn't be long now. Also, I will kiss bare male ass in the middle of the Vegas Strip. I will post pics if I need to. Take a video though. Odometer read which we figured rolled over once.
GPS'd at 58 mph down river in front of Willow Valley Marina running a panther pump, so you dont even need a new Ford to go fast. Quote from: redlightrobert on March 10, , PM. Quote from: Colesifer on September 22, , PM. Personally, the big block Chevy is a good choice, especially if you have pieces and parts lying around ready to play This basically takes the tall deck out of the equation In my experience, a makes a great choice for a high RPM requirement and at the same time, cheap to build relatively speaking The biggest mistake I see made is the overshooting on the heads and camshaft.
I really like oval port heads and high rise manifolds with a somewhat small camshaft. It gets convoluted, but the torque requirement is what make a jet boat motor special. A motor that requires RPM to make peak power will never get there unless your torque "comes in late" There are dozens of "recipes", but if a pump gas non racing toy is what your after, here is what I would build; cu in through cu in big block. Good blue printed high volume oil pump and over sized "jet" pan.
A marine specific camshaft, preferably a hydraulic roller with a long duration without crazy lift numbers keeps things tough. Comp Cams actually makes a few off the shelf sticks that I have had some success with and they are somewhat affordable. A good mechanical secondary carburetor and exhaust are an absolute must, it would be a shame to build a hard running engine and put a restrictive exhaust and carb system on it.. Next up is ignition, I prefer keeping it simple, but it's easy to go overboard here MSD "ready to run", MSD 6 series and Pertronix are all I have ever played with and never looked back, these can be bought used with little effort.
All this being said, I have no issues using old but good used parts, if you have an unlimited budget I don't then go to a reputable engine builder that is familiar with marine builds and tell him what you are looking for. There will be a million opinions out there, but do what feels right and you will be fine Just don't over think it As for the Ford Hi proppy Boat 1: Carrera We like pic's.
I have an 18 ft galaxy with a panther and it has a i put together.
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