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spark jump

A place to ask general spud cannon related questions.
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spark jump

Unread postAuthor: iamthewalrus » Thu May 26, 2005 8:26 pm

this my be a totally opinionated question, butmaybe theres science behind it. i was just woundering if there is a best lenght for the spark to jump. like is 2mm better then 1mm or i 3mm better then 4? jw
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Unread postAuthor: spudshot » Fri May 27, 2005 5:00 am

i try to stick around 1/8"-1/4" gap, but thats with a peizo bbq ignitor, a stungun would allow much longer lengths
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Unread postAuthor: iamthewalrus » Fri May 27, 2005 12:24 pm

does that mean that a longer spark gap is better?
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Unread postAuthor: PCGUY » Sun May 29, 2005 11:49 am

I don't think it really matters, however there hasn't really been any testing on it. You can test if you'd like :P
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Unread postAuthor: PhoenixFire » Sun May 29, 2005 8:42 pm

Longer spark isn't as hot. Shorter spark is hotter, but doesn't light as much gas on fire. Best spark would be one that fills your whole chamber, instantly superheating all the air inside, creating pressure with out the need for fuel.
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Unread postAuthor: Cole » Sun May 29, 2005 10:53 pm

Is that possible? Has it been done or is it just a theory?
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Unread postAuthor: julz » Sun May 29, 2005 11:21 pm

i guess its possible to make a whole bunch of little sparks that nearly fill the chamber, but it would be very hard.
---Julz
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Unread postAuthor: iamthewalrus » Mon May 30, 2005 7:14 am

ok, besides filling the chamber with superheated sparks should i go for about medium length so i get the area coverage and the heat from long and short sparks?
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Unread postAuthor: BillyBobJoe » Mon May 30, 2005 8:39 am

A larger spark has a greater chance of ignting fuel that is not mixed properly, because it covers a large area, but if you using a chamber fan, it should matter.
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