Are my calculations right?

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Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sun Jan 29, 2012 8:25 pm

puuh, this is what I manage to do this weekend. I will get the last stainless steel this week and i am hoping to have the enigne done by the 18-19/02.
Then the fun begins :D

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Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sun Feb 05, 2012 8:47 am

it is growing :D
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Daniel L
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Re: Are my calculations right?

Post by Daniel L » Tue Feb 07, 2012 7:16 pm

getting bigger:D
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LinusN
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Re: Are my calculations right?

Post by LinusN » Mon Feb 13, 2012 4:25 pm

Looks great!
I posted a link to this thread from our (Svarthålet Racing) Swedish website.

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Wed Feb 22, 2012 8:01 pm

well here is almost the latest progress and the other jet build.
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PyroJoe
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Re: Are my calculations right?

Post by PyroJoe » Fri Feb 24, 2012 7:44 pm

looks like a barrel of fun on skis! Keep us posted 8)

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sat Feb 25, 2012 11:09 am

And we have a first start up. I am hoping to start mine today in a few hoars :D

http://www.youtube.com/watch?v=ZgjDQ-9t ... ature=plcp

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sun Feb 26, 2012 8:36 am

well i don,t think i have enought air what do you guys think. we did several "starts" but nothing more exiting than this,
I did try to give it less fuel but that didn't do it well more fuel didn't work ether atleast not with the leafblower and compressor we used at the same time.

http://www.youtube.com/watch?v=5aTtbJE95Jc

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sun Feb 26, 2012 7:48 pm

well we had more air today. but it didn't work. I don't think my valve are big enough and that results in to much hot gases that return in to the enging and that causes my valve to look like this:C

What do you guys thing I need help with this and fast:S
I am thinking that i should go up to 0,3mm springsteal I now have 0,25mm and make the valve inlett bigger.

This are after maybe 4-5min of total running time:S

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PyroJoe
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Re: Are my calculations right?

Post by PyroJoe » Mon Feb 27, 2012 4:32 pm

Wish I could help, but at the moment my best guess would probably be completely wrong.

metiz
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Re: Are my calculations right?

Post by metiz » Mon Feb 27, 2012 4:45 pm

Looks like the valves are slamming shut. maybe decrease the tension?
Quantify the world.

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Mon Feb 27, 2012 7:56 pm

well maybe this video will get you some clues
http://www.youtube.com/watch?v=yVe1muvg ... AAAAAAAAAA

Mike Everman
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Re: Are my calculations right?

Post by Mike Everman » Tue Feb 28, 2012 10:07 pm

You need something to keep valves from opening too far.
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Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sat Mar 03, 2012 9:06 am

aah, so fu##ing close. I have stops for the reed valves in it now and they made it better. But i will moddify them today so that they don't open just that much.

In the film I actuly beleve that it startet fore a few pulses just at 0,30 when i opened the second fuelpump. But by the my reed valves was bad and at 0,50sek thay almost failed completly. All 16 have bits as big as 1cm2 missing and one are completly missing leaving to wholes :(

http://www.youtube.com/watch?v=KShSc82P ... AAAAAAAAAA

Daniel L
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Re: Are my calculations right?

Post by Daniel L » Sat Oct 27, 2012 7:06 pm

Ok, it is winter here in sweden now so the work has begune again. I have built a new reed valve set and that did cut the valves only half as long as the orginal.
I am atlest getting somewhere now :D

http://www.youtube.com/watch?v=eepnk26h ... e=youtu.be

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