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Post by turbochris on Aug 3, 2011 6:33:13 GMT -5
a cowboy hat , better life insurance and handlebars
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Post by Johansson on Aug 3, 2011 6:40:50 GMT -5
a cowboy hat , better life insurance and handlebars Oh yes, I forgot the handlebars.
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Post by turbochris on Aug 3, 2011 12:47:02 GMT -5
I'm building a universal seat/handlebar kit. I thought of it when I saw these kids break into a construction site and take a bunch of O2 bottles and break the valves off. The bottles hauled ass! But their directional stability was questionable. But they did haul ass and that means I want a ride. I would use the universal seat/handlebar kit with the rudder/elevator option. We could use these kits on all those jet engines ernie has laying around.
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Post by ernie wrenn on Aug 3, 2011 13:20:30 GMT -5
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Post by Johansson on Aug 3, 2011 13:40:09 GMT -5
That would be an interesting sight. ;D I tested the engine at 200bar today and it was a total success, without even opening the bottle valve fully the rotor reached 11.500rpm after a couple of seconds! Haleluja!!
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metiz
Senior Member
Joined: April 2011
Posts: 297
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Post by metiz on Aug 3, 2011 14:46:48 GMT -5
Sounds cool even without fuel when are you going to properly test it?
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Post by Johansson on Aug 3, 2011 14:47:54 GMT -5
Sounds cool even without fuel when are you going to properly test it? "When it is ready" is the best answer I can give you, but sometime this authumn I guess.
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wolfdragon
Senior Member
Joined: April 2011
Posts: 287
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Post by wolfdragon on Aug 3, 2011 16:39:04 GMT -5
how much ice did the airstream create?
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Post by racket on Aug 3, 2011 17:14:52 GMT -5
Hi Anders
Thats excellent news :-)
It'll be even better once you have the outer cover on and the air from the compressor wheel is adding to the energy being transferred to the turbine wheel , currently you're "compressing" that air but not putting it to use ..............................I dare say there was a good "breeze" coming out of the compressor at 11K .
Cheers John
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Post by pitciblackscotland on Aug 3, 2011 17:35:43 GMT -5
Good one Anders, Thats excellent news keep up the good work. Cheers, Mark..
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Post by Johansson on Aug 4, 2011 0:02:33 GMT -5
The steel air tube "inside" the engine froze as you can see in the video, but I couldn´t see any ice deposits on the turbine wheel. The heat from the combustion will take care of that in case there is some. This is great news indeed, the only issue is that the shaft seals seem to leak a bit of oil during the test. You can see the waves in the oil puddle under the engine when the engine starts to spool up, that oil comes out of the diffusor channels. This might be caused by an underpressure between the comp wheel and the front shaft seal created by the air flinged out from the compressor wheel, if so it will only leak during startup since the pressure inside the engine once running should hold this back. I still haven´t checked where the gap in the front seal piston ring is, that might be one cause for the leak. I have the option of fitting a second oil return pump since I have two outlets on the engine, that should pull a stronger vaccum in the shaft tunnel and possibly lessen the leak. Do you think that would help John?
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Post by racket on Aug 4, 2011 4:14:09 GMT -5
Hi Anders
I'd certainly have plenty of scavange capacity if I was you , we probably need 3 or 4 times the supply capacity to be on the safe side as there'll be a lot of air mixed in with the oil .
Oil leaks are a bit of a problem when doing static testing , even with good quality turbos there can be leaks .
Time to put her together and fire her up :-)
Cheers John
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Post by Johansson on Aug 4, 2011 13:14:57 GMT -5
I´ll get a second pump then, too bad I have to drive 350km to get it. Damn company that only sells over the counter...
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Post by turbochris on Aug 4, 2011 17:32:39 GMT -5
what in the hell did you buy Ernie? I'm not sure what you're planning on doing with all those but I'm thinking a giant wheeled meccha centipede with all kinds of engines and turbines and fire and shit! We'll go to burning man!
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Post by Richard OConnell on Aug 4, 2011 20:55:31 GMT -5
I'm building a universal seat/handlebar kit. I thought of it when I saw these kids break into a construction site and take a bunch of O2 bottles and break the valves off. The bottles hauled ass! But their directional stability was questionable. But they did haul ass and that means I want a ride. I would use the universal seat/handlebar kit with the rudder/elevator option. We could use these kits on all those jet engines ernie has laying around. Huh, I was thibking about those engines too, but I had a different, but equally dangerous idea...
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