Are my calculations right?
Moderator: Mike Everman
Re: Are my calculations right?
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
Then the fun begins
Re: Are my calculations right?
it is growing
Re: Are my calculations right?
getting bigger:D
Re: Are my calculations right?
Looks great!
I posted a link to this thread from our (Svarthålet Racing) Swedish website.
I posted a link to this thread from our (Svarthålet Racing) Swedish website.
Re: Are my calculations right?
well here is almost the latest progress and the other jet build.
Re: Are my calculations right?
looks like a barrel of fun on skis! Keep us posted
Re: Are my calculations right?
And we have a first start up. I am hoping to start mine today in a few hoars
http://www.youtube.com/watch?v=ZgjDQ-9t ... ature=plcp
http://www.youtube.com/watch?v=ZgjDQ-9t ... ature=plcp
Re: Are my calculations right?
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
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
Re: Are my calculations right?
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
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
Re: Are my calculations right?
Wish I could help, but at the moment my best guess would probably be completely wrong.
Re: Are my calculations right?
Looks like the valves are slamming shut. maybe decrease the tension?
Quantify the world.
Re: Are my calculations right?
well maybe this video will get you some clues
http://www.youtube.com/watch?v=yVe1muvg ... AAAAAAAAAA
http://www.youtube.com/watch?v=yVe1muvg ... AAAAAAAAAA
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Re: Are my calculations right?
You need something to keep valves from opening too far.
Mike Often wrong, never unsure.
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Re: Are my calculations right?
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
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
Re: Are my calculations right?
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
http://www.youtube.com/watch?v=eepnk26h ... e=youtu.be
I am atlest getting somewhere now
http://www.youtube.com/watch?v=eepnk26h ... e=youtu.be