Just wanted to say G'day, and share a bit about my upcoming jet Gokart project, but first a massive thank you to all who have come before me that have shared their time and talent building jet engines. You all inspire others like myself to live our crazy dreams. I have watched many creators on youtube over the years build jet engines and pulse jets. Having a place like this to gather important information and not repeat the same mistakes as others is priceless.
I live in Western Australia, and have over 20 years mechanical trade experience building hot rods, cummins diesel engines and mining equipment. The stars have finally aligned after my first jet engine attempt 17 years ago. I plan to build a Jet powered Gokart and take it to the drag strip. I want to inspire others just like I once was, so I started a youtube channel called JetManJoe. I plan to upload videos frequently. I also plan to upload 'How To' videos teaching others about welding, fabricating, electrical component and circuit designing, and tricks of my trade.
Currently I have a Cummins ISX 15 engine turbo, but have access to other turbos. I'm building a Jet Engine test stand at the moment that will house all the gear to run all sorts of engines for years to come. The test stand will measure thrust as it will roll on bearings.
I hope I can contribute and also learn from the best likeminded people here.
Yes plenty of BIG turbos getting around as I live in a mining town with lots of mechanic mates. My Cummins engine turbo is about 76mm comp inducer size with twin scroll which will be fine for my first attempt at making a jet engine, I have 4 turbos to play with at the moment and will probably blow some up for youtube fun (turbo burn barrel ;b ). We all know the first time you make something there is always room for improvements. So once I have a good working design with AB I will get my hands on a bigger turbo from a dump truck or something alike.
The first picture is the top of my test stand that will house all components to run the jet engine. The top will be on bearing tracks to roll back and forth on another frame (to measure thrust). This also makes it easier for me to transport on the back of my ute. I plan on making pulse jet engines and running them on the same test bench in the future. Years of fun.
The last picture is my home made plasma cutter table with downdraft that I made just for all these jet engine projects. I've got a build video up on youtube. I have mates in the local Gokart club looking out for a secondhand near new KZ Gokart for me. They are a shifter kart that can do 160km plus, but I have a long way before I put anything on a Kart.
Last Edit: Oct 26, 2023 7:05:10 GMT -5 by jetmanjoe
Thanks John, I've been on the deep dive in the forum already and much appreciated. Some of the things I'm still trying to figure out are -mounting the turbo (where to mount on the turbo, maybe the 4 bolt exhaust flange like it is on the truck engine) -suppliers of oil burner nozzles in Australia
Last Edit: Oct 26, 2023 3:41:12 GMT -5 by jetmanjoe
Post by pitciblackscotland on Oct 26, 2023 6:49:12 GMT -5
G'day Joe, i have a box of oil spray nozzles that i can sell to you what size do you need? Also i can machine up bosses for the oil nozzle if you want? Send me a PM and we can work out what you need. Cheers, Mark.
We need a fairly thick ( >12mm ) mounting flange for the turbo to prevent warpage and leaks , I like to use a large diameter flange that is also the bottom of the combustor , this can then be easily mounted to your frame , and the turbo simply mounted off it as it would off the exhaust manifold of the diesel engine
So just to let you know I am doing the whole profession youtube thing. I have spent alot of money so I can do this youtube series of building a jet gokart. Literally been doing professional training online with some of the best youtube editors around the globe. So hopefully it shows . Hopefully people can get excited about watching the build process, all the ups and downs. Enjoy the video.
So I managed to score this mammoth turbo for free. 118mm comp inducer, 128mm turbine exducer.
I'm tempted to build a jet engine with this turbo first and have it purely as a test stand engine only. The turbo is more simple in design then my other turbo I already have, like rear bolt on flange, slip joint compressor outlet, not a twin scroll.
It does bring up the ohhh crap factor... and fuel consumption will be hugh, but at the same time its like go big or go home.
Last Edit: Nov 20, 2023 6:20:19 GMT -5 by jetmanjoe
HTZL on comp cover.......................ABB turbo
Found it :-) one of my many note books, has what appears to be a lot of figures , sizes , angles etc ...................someone must have sent me some bits once , long time ago , can't remember , don't have the bits anymore
Its certainly heavy , the rotor I had weighed in at 4.1 kgs
NGV numbers RR153 EADI ECI WGO6 HTLT 313668 P E9 , throat width 0.98 " but have 3 different throats at 0.26" 0.39"and 0.65" , bugger , wish I could remember :-(
Looks like I did the calcs for using the rotor in an engine .....................but max turb inlet temp allowed is 600C ............... I don't know if thats for long life , scroll casting limitations or whatever.
I worked on 3 lbs/sec mass flow , but in hindsight I might have been a tad conservative , given the 30 degree comp inducer tip angle .
Yep , it'll have street cred, don't worry about fuel burn , only a coupla lpm to the turbo and 4 lpm to the A/B :-)