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Multiple Ignitions

A place to ask general spud cannon related questions.
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Multiple Ignitions

Unread postAuthor: Atlantis » Sat Jun 16, 2007 11:57 pm

My friend wants to make a bunch of combustion cannons together and fire them all at once for a big noisemaker basically, no ammo. We need a way to fire a few cannons off at once, he's pretty good with electronics.
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Unread postAuthor: turbohacker » Sun Jun 17, 2007 12:28 am

Get a stun gun ignition and wire up several spark plugs, very simple once you get the stun gun, if not buy an electronic ignition for a car (or old one) and rig it to your spark plugs
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Unread postAuthor: shud_b_rite » Sun Jun 17, 2007 12:28 am

Thats easy, wire your stun gun or camera flash ignition in series with the spark gaps. Depending on how many cannons your looking at you may need to up the voltage.
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Unread postAuthor: Bubba05 » Sun Jun 17, 2007 1:17 am

why dont you install spark plugs in ya cannons and then hook them up to the distributor on ya car? wind the car over and you got several cannons going off at once! or you can set it up so the go in cosecutive order!!
21 spud cannon sulute anyone??

Bubba
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Unread postAuthor: Pete Zaria » Sun Jun 17, 2007 1:38 am

Bubba05 wrote:why dont you install spark plugs in ya cannons and then hook them up to the distributor on ya car? wind the car over and you got several cannons going off at once! or you can set it up so the go in cosecutive order!!
21 spud cannon sulute anyone??

Bubba


You asked why not, so I'll propose a few answers:

1) You'd have to use very high-voltage, highly insulated wire to connect the plugs to the car's distributor, which would be expensive.
2) You'd have to stay close to your car constantly.
3) Unhooking the car's plugs, hooking up the cannon, and then putting things back when you're done each time would be a pain in the arse.
4) It's very bad for your car's starter motor

Using a camera flash, ignition coil, and relay, (or replace those 3 parts with a stungun...) wired to a spark plug in each gun, would probably be the easiest way to go.

Any type of electronic ignition system hooked up to a relay will work for this. A BBQ sparker might even work for just 2 or 3 small spark gaps, if the wiring was nice and thick (low resistance) but I wouldn't bet on it.

Visco cannon fuse would probably work also, just use an equal length for each cannon and have the ends of the fuses meet in one spot...

Theoretically, you could "link" all the chambers with small (say, 1/2") pipe, effectively creating one huge chamber (though it's actually several small ones linked together) with multiple barrels. Then, you could use a propane meter and several chamber fans (which would be required to evenly distribute the fuel between the chambers), and one central spark (the flame front would propagate to each chamber quite quickly). I wouldn't try it, I'm just saying, it's possible....

Peace,
Pete Zaria.
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Unread postAuthor: Bubba05 » Sun Jun 17, 2007 8:42 am

@ Pete Zaria ok yeah! It was a thort mate? I have a friend that has used this ignition on his metal cannon and all he dose is run the distributor lead from the coil pack and plugs it into the spark plug on his cannon. It works realy well and he's even done it on my car. I run a 308ci V8 and i got a hard core starter. So we havent run into any real problems!

Bubba
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