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Keith’s Propane Injected ECL 1400

Built a combustion cannon? Then post it here! This section is for completed, finished cannons that you have built. Please include pictures and information.
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Keith’s Propane Injected ECL 1400

Unread postAuthor: sv490665 » Wed Sep 20, 2006 3:01 am

Hey everybody, check out my new combustion launcher. Here's the specs, tell me what you all think, and please rate this gun if you get a chance, thanks!

Name: ECL 1400 (Economy Combustion Launcher)
Setup: Over-Under Style
Chamber: 1'x3" PVC, 1427.72cc
Barrel: 31"x1.5" PVC
C:B Ratio: 1.4:1
Fuel: Metered Propane Injection
Meter: 6"x 3/8 Brass
Ignition: BBQ Ignitor
Ammunition: Standard russet potatoes cut in half, small apples, and paintballs in saran wrap for shotgun rounds
Modifications: Diametrically opposed spark gaps with dual ignition using a chamber short (burnt latke), Friction mounted chamber fan with on/off button and 9v battery pack, Custom built trigger frame with removable faceplate, hinging support block for breechloading, Quick interchangeable barrel ability, Exhaust end cap, onboard propane injection system including meter pipe and 0-60 p.s.i. pressure gauge, Krylon Fusion paint job, gun reloading stand (not pictured) made of 2x4 and padded with stapled-on towel cut to size.
Comments: This gun was built very sturdy, everything holds together really well. My goal was to build a combustion gun with ergonomics in mind, so i had to have onboard propane injection and breechloading for fast reloading times. It takes me about 45 seconds to reload at a comfortable pace. Probably about 30 if i was rushing. This thing shoots hard and it's LOUD! If i put in 55 p.s.i. into my metering pipe and dump it in the chamber it's like as loud as a 9mm Glock pistol. It shoots easily through 5/8" drywall every time, sorry no damage pics, maybe soon. I have yet to do a distance test but i'm guessing it's at least 300 yards, it gets about 10 seconds of hangtime when shot at a 45 degree angle on a 55 p.s.i shot. I love propane, it's so cheap, so powerful, so clean, and you use so little of it... hence "economy" in the name for this gun.
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Attachments
Pic 5- ECL 1400.jpg
Pic 4- ECL 1400.jpg
Pic 3- ECL 1400.jpg
Pic 2- ECL 1400.jpg
Pic 1- ECL 1400.jpg
Electrical Components Layout.jpg
Electrical Components Layout
Breechloading Layout.jpg
Breechloading Layout
Last edited by sv490665 on Fri Jul 04, 2008 1:48 am, edited 3 times in total.
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Unread postAuthor: schmanman » Wed Sep 20, 2006 5:24 am

just a suggestion, I would stop with the red. I know, because when I was new, I used red, and everybody yelled at me. stick with the normal color. :wink:

oh, btw, nice gun
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Unread postAuthor: mark.f » Wed Sep 20, 2006 5:53 am

Screw the red. Nice gun!
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Unread postAuthor: POS » Wed Sep 20, 2006 6:11 am

indeed nice gun man. Very nice.
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Unread postAuthor: killagorrila99 » Wed Sep 20, 2006 6:27 am

Ahhh Very nice. Reminds me a little of Gorts blue flame!
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Unread postAuthor: noname » Wed Sep 20, 2006 6:23 pm

That's nice, it has to be for me to reply to it, seeing as I never hang out in the combustion stuff. Looks really good, who cares about the ball valve handles.
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Unread postAuthor: ProfessorAmadeus » Wed Sep 20, 2006 6:43 pm

I like the handle alot. It is built and looks very nice. I too no longer make combustion because of the weak power but this one looks great.
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Unread postAuthor: frankrede » Wed Sep 20, 2006 6:47 pm

hmm, If the mods dont want colors why don't they disable the option to do so.
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Unread postAuthor: sv490665 » Wed Sep 20, 2006 6:59 pm

haha, for you freaks out there that can't stand the red, i'll change it.... I am a newb at this site, sorry. Thanks for all the positive replies though.
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Unread postAuthor: noname » Wed Sep 20, 2006 9:28 pm

No one cares about the red, man. It's awesome anyway.
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Unread postAuthor: pyrogeek » Thu Sep 21, 2006 10:53 pm

Very nicely done. I especially like the hinged barrel for breech loading, never seen that before.
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Unread postAuthor: Mr.Taterhead » Mon Sep 25, 2006 11:49 pm

Wicked Gun Man !!! I love the onboard propane injection, hope to try that on a gun I have in mind later. Thanks for the pics and keep up the great work. :D
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Unread postAuthor: Mr.Taterhead » Mon Sep 25, 2006 11:56 pm

I do have just one question. How do you get the propane inside the chamber??? Maybe I'm just over looking that.
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Unread postAuthor: MrCrowley » Tue Sep 26, 2006 12:17 am

instead of double posting edit your posts.
and did you read the title...hmmm let me see "Keiths PROPANE INJECTED ECL 1400
he uses a 0-60psi gauge to figure how much hes putting in and ball valves and crap...just read the orginal post and it tells you.
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Unread postAuthor: sv490665 » Tue Sep 26, 2006 2:24 pm

I think taterhead was wondering how the propane actually gets into the chamber from the meter pipe... if so at the end of the second ball valve i just put a 90 degree street elbow tapped directly into the pipe, sorry it may be difficult to see from the pictures. Look at pic 1, it shows the best angle of the street elbow from the ball valve into the chamber
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