Turboshaft minibike MRT-01

[stoffe64]

very nice work , i really appreciated the video, it looks so simple!
cheers/stephan

[beaker]

Looks like things are getting interesting. Dam its fun to experiment!
Keep up the good work.

[miuge]

Great to see that people like what we do! If you're using facebook, you can follow our other projects here:
www.facebook.com/magnusracingteam

[miuge]

Finally we continued the turbine housing manufacturing.. Had some delay because our machinist was sick, but here's the part2 (should be online soon):
vimeo.com/94456913

Turbineshaft wasn't quite straight, not even close, noticed just when we put it into a lathe. Few punches with a sledgehammer made it better so it could be turned, then camera run out of battery so I didn't get any good footage.
youtu.be/XDUwuYAUVGM

[miuge]

Blah, what do YOU think of the housing? I'm not sure if it goes to trash can or should I continue with it? Yet it would be easy to change it..

[Johansson]

Looks very nice! Did you make separate patterns for every segment or did you make a bunch and trim them to size?

[gidge348]

I think that is fine, probably not flow as well as a factory cast one, but it may not have to ....I would use it.

When you think about it a lot of 2 stroke exhausts and pulse jets use the same technique so cant see why it wouldn't work?

Good job....
Cheers Ian..

[miuge]

Okay, I was worried about sharp corners and didn't like the looks.. So I started to create something more traditional:

[miuge]

Sorry for the new post, but here's a new video of housing manufacturing:
vimeo.com/94780562

Also we got the sprockets 9 front and 96 rear:

[stoffe64]

damn what a nice work youre doing there!!, myself is fighting constructing the flametubes transition duct AND im stucked on that part.

[Johansson]

I think the circular scroll looked much better than a sheet metal scroll, I´ll make a circular one for the boat motor.

[miuge]

Hopefully your circular scroll will look better than mine Using more pieces would make it look nicer, I just didn't have enough patience.
So I ended up to this:


i187.photobucket.com/albums/x281/mice325/Project%20Jatkettu/WP_002735_zpse56f94ca.jpg

Now I'm pretty happy with the looks and that also must flow better than the earlier version. Housing weights 2950g and CHRA 4190g, we made it a little sturdier than I modelled.

[Johansson]

Progressing nicely!

Don´t be too sure of that, I haven´t got time to make this build top notch so I am perfectly glad if it looks half as good as yours.

Cheers!
/Anders

[racket]

Great to see you guys had the good sense to make the "centre" part of your scroll out of some solid metal before welding on the sheeting bits , when I made my scroll for the two shaft kart I was too concerned with weight and had nothing but problems making the scroll from thin section material , .............LOL, it was thrown into the waste bin several times during its construction, only to be dragged out a couple of days latter to be resurrected , the distortions from welding were causing the turbine wheel to scrape the shroud, requiring some less than precision grinding using an old cutoff disc in the drill press :-(

Looking good :-)

Cheers
John

[metiz]

It's a pitty you had to throw away the segmented scroll, but I love how you build it! very ingenious. I would have made every single part from sheet steel, would've taken forever!