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help! on my spud gun

Post questions and info about combustion (flammable vapor) powered cannons here. This includes discussion about fuels, ratios, ignition systems, safety, and anything else relevant.
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help! on my spud gun

Unread postAuthor: pimp » Mon Apr 09, 2007 8:02 pm

could i do a 2 inch sch40 pvc combustion then reduce to 3/4sch 40 pvc for a barrell or 3/4 is to small? thanks in advance
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Unread postAuthor: hi » Mon Apr 09, 2007 8:10 pm

thats perfectly safe and practical, i dont know why you couldnt. you would need a bushing, i doubt they make reducers that small, but i dont know.
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Unread postAuthor: Specialist » Mon Apr 09, 2007 8:13 pm

if you go to your local plumbing supply store i bet you will find the fittings just bring the two pieces and ask someone to help you. :D

good luck!
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Unread postAuthor: homedepotpro » Mon Apr 09, 2007 9:06 pm

the only problem with that is getting the right fuel to air mix. it's really hard in small chambers
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Unread postAuthor: PAspuder » Tue Apr 10, 2007 11:18 am

Yeah I just built a new combustion gun with a smaller chamber and it is really hard to get it to ignite so I think im going to get rid of it and make one with a larger chamber.
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Unread postAuthor: Bubba05 » Thu Apr 19, 2007 8:54 pm

yeah getting a bigger chamber mite be the trick and you can get reduciers to go that small.

Bubba
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