After disassembly and some measurements a friend of mine in Australia (John Wallis) has run some calculations and found that the turbine guide vane area is roughly twice what is needed. I will do a quick fix and block off a section of the vane area with a stainless ring and give it another go. This will dramatically increase the speed of the gasses hitting the turbine blades and hopefully be enough to get it to run on its own. Keep your fingers crossed!😃
@@philippwetter Thank you! This compressor wheel has a slight wobble due to the outer cone being rolled from a steel sheet template, so a labyrinth seal cannot be used. I have made the cover fit as tightly as possible around the inducer so leakage is hopefully acceptable.
This is the most fun part of building jets, thinking, redesigning and test running. Might be the comp vane backsweep that needs to change, the boost pressure needle was barely moving during the test.
The idea is to fit a snowmobile belt clutch directly on the rotor shaft (it will work since max rpm will be 8-9000rpm) and build a 1930-style Formula car around it to go on veteran hill climbs and such. But it is a loooong way there. :)
It was pretty close but at way too high temps, so I probably have to redesign something. I want it to have a low and cold idle so even if I would have managed to get it to self sustain at high rpm´s and glowing temps that is not acceptable.
Fast den vill inte riktigt starta än, jag gjorde ett test utan att filma efter detta då jag gav på ännu mer bränsle. Då var avgastempen över 700 grader och den var jäääkligt nära att hålla sig igång på 3000rpm. Men det är alldeles för varmt, jag måste nog designa om några delar innan nästa test.
I know, but after years of running it hangs like a sack on me. Been thinking about getting a Hugo Boss suit for future test runs, if they were good enough for the SS they are good enough for me.
The plan is to extract shaft horsepower from it, not thrust. Since the max rpm will be soo low due to the rotor diameter a snowmobile belt clutch could be place directly on the turbine shaft in front of the compressor.
@@Mobackenracing Sounds excellent, gas turbines make great prime movers for generators. Rover made a man-portable fire pump with one in the '60s, it started with a hand crank.
"fortare, fortare!!1" :D nämen, nog är det kvar lite klurande än. ba drygt att börja designa om delar och inse att det är många gånger man måste pilla isär allt. jag tror du fixar't, hejja!
@@knglaser Det är ju det här som är kul, att förbättra och bygga om tills det funkar. Hade den startat direkt och gått felfritt skulle det vara lite av ett antiklimax, vad ska jag nu pyssla med liksom. 😁
@@WikWak I am not sure, it spun 3000rpm and that is close to 40% max rpm which should be well above idle. The compressor is loosely based on the FD3/64 design and with its backswept compressor it had a very low self sustain speed.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
After disassembly and some measurements a friend of mine in Australia (John Wallis) has run some calculations and found that the turbine guide vane area is roughly twice what is needed.
I will do a quick fix and block off a section of the vane area with a stainless ring and give it another go. This will dramatically increase the speed of the gasses hitting the turbine blades and hopefully be enough to get it to run on its own.
Keep your fingers crossed!😃
When I was 15 I dreamed of doing this. But I had no money, no skills, and no tools. So here I'm seeing my dream vicariously!
Good luck bro
Thanks!
Very nice bullet heater......
Hahahaha, va fan håller du på med för tok nu då?
Men det ser helt klart roligt ut, måste nog ta mig en tur till Fjäl snart😂👍🏻
Det gör du rätt i!
Hehe hade den startat å du bränt av spännbandet då hade du fått myckevisningar😂
Ha ha!
Good luck with that
Thanks!
Amazing build! Did you implement air labirynth seal for the compressor wheel and the intake cone?
@@philippwetter Thank you! This compressor wheel has a slight wobble due to the outer cone being rolled from a steel sheet template, so a labyrinth seal cannot be used.
I have made the cover fit as tightly as possible around the inducer so leakage is hopefully acceptable.
So close... little more revs ? Or more fuel ? But my friend am sure you will have it sorted soon 😊
This is the most fun part of building jets, thinking, redesigning and test running.
Might be the comp vane backsweep that needs to change, the boost pressure needle was barely moving during the test.
Great Washingmashine
What will this turbine be powering in the future, once it is all built and tested?
The idea is to fit a snowmobile belt clutch directly on the rotor shaft (it will work since max rpm will be 8-9000rpm) and build a 1930-style Formula car around it to go on veteran hill climbs and such. But it is a loooong way there. :)
@Mobackenracing That sounds awesome. Good luck!
@ Thanks!
I hope you've got some bypass on that engine, since otherwise the webbing strap around it might not last long...
The outer casing should be cold enough to touch while running so no problems, I´ll make a proper engine mount later though. :)
It feels like it's almost close enough to start.
It was pretty close but at way too high temps, so I probably have to redesign something. I want it to have a low and cold idle so even if I would have managed to get it to self sustain at high rpm´s and glowing temps that is not acceptable.
@@Mobackenracing Ah that is a good point. Yeah
Riktigt spännande att se den igång! Hoppas att du får fler prenumeranter😀
Fast den vill inte riktigt starta än, jag gjorde ett test utan att filma efter detta då jag gav på ännu mer bränsle. Då var avgastempen över 700 grader och den var jäääkligt nära att hålla sig igång på 3000rpm. Men det är alldeles för varmt, jag måste nog designa om några delar innan nästa test.
Många prenumeranter är inte något jag bryr mig i, lägger mest ut filmerna för att kunna länka till ett jetbyggarforum som jag är med i.
@@Mobackenracing Ja 700 grader låter varmt, blir kul att se👍🏻
Shouldn't testing always be performed in a tuxedo?
I know, but after years of running it hangs like a sack on me. Been thinking about getting a Hugo Boss suit for future test runs, if they were good enough for the SS they are good enough for me.
If you’ve got spare shaft horsepower when this is going it would make a great CHP unit.
The plan is to extract shaft horsepower from it, not thrust. Since the max rpm will be soo low due to the rotor diameter a snowmobile belt clutch could be place directly on the turbine shaft in front of the compressor.
@@Mobackenracing Sounds excellent, gas turbines make great prime movers for generators. Rover made a man-portable fire pump with one in the '60s, it started with a hand crank.
"fortare, fortare!!1" :D nämen, nog är det kvar lite klurande än. ba drygt att börja designa om delar och inse att det är många gånger man måste pilla isär allt. jag tror du fixar't, hejja!
@@knglaser Det är ju det här som är kul, att förbättra och bygga om tills det funkar. Hade den startat direkt och gått felfritt skulle det vara lite av ett antiklimax, vad ska jag nu pyssla med liksom. 😁
Turn down that wheel on the compressor. She wants more rpm i rekon!
@@WikWak I am not sure, it spun 3000rpm and that is close to 40% max rpm which should be well above idle. The compressor is loosely based on the FD3/64 design and with its backswept compressor it had a very low self sustain speed.
I've not properly looked at the thread.
Blimey, that's slow. I'll have to look up about that kind of compressor
Not even close to proper speed with that drive set up you need 30,0000 rpms not 3,600
Take into consideration that the rotor is 500mm in diameter, this is no Jetcat RC turbine.