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Engine - Exhaust Topics about the exhaust system discussed here.

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Old 11-10-2005, 08:24 PM   #16
 
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There's an old chevy pickup in the shop with dual pipes and coil and spark plugs hooked up, works fine on a carbed engine, but a little more work on efi
Run a cold start injector a little ahead of your spark plug
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Old 11-10-2005, 08:28 PM   #17
 
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you might get little flames, but nothing huge, or flame 'thrower' like... must add fuel, either by force or by redtardation lmao.

You could get a spark retard rev limiter and set it for like 2.5k and spark the plug in the exhaust and watch the pretty show tho, just gotta flip on the plug and rev the motor, and you can torch the guy at the light lmao.

Its easy enough to build your own coil driver to fire the plug in the exhaust, and you only need a couple sparks to do it, and then you just need fuel there...
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Old 11-10-2005, 08:29 PM   #18
 
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hehe, the fuel can come in up-stream too, so you dont need a long fuel line to the back of the car, BUT only if you have a good free-flowing exhaust, or you could blow the exhaust off the car! lmao (you couldn't inject it JUST after the turbo, maybe at the bottom of the downpipe?)
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Old 11-10-2005, 09:26 PM   #19
 
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but suppose with my setup now, would it possiable to get any size flame what so ever with just the spark in the tailpipe? without cutting spark to the engine and letting fuel come through.
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Old 11-10-2005, 09:48 PM   #20
 
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not really, maybe some 'puffs' of flame...
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Old 11-10-2005, 11:24 PM   #21
 
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How about using propane or MAPP gas? run a nozzle into the tail pipe and ignite using a remote peizo ignitor like a barbeque... BABOOOM!!!
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Old 11-10-2005, 11:57 PM   #22
 
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$40 bucks! Thats alot. I built one for...Free. (See attached picture)

The negative wire of the "flame thrower" coil gets spliced into the negative wire of the engine coil so that it will spark a bunch of times to ensure that the fuel gets ignited. The original positive coil wire gets hooked to the suppy pin on a flip-flop relay. The always-on pin of the relay gets hooked to the positive pin on the engine coil. The on-when-powered pin of the relay gets hooked to the positive side of the "flame-thrower" coil. Then just hook the ground of the relay to the body somewhere and hook a momentary switch up inside the car to supply power to the switching side of the relay when the button is pressed. I mounted my relay in the engine bay on the inner fender about 2 inches from the coil to keep the wires to and from the engine coil as short as possible.

It's good for a 2-3 foot flame depending on how high you rev it and how far down you hold the pedal when you have the button pushed. This is with a 2 1/2" side exit, no cat and no muffler...The spark plug is mounted about 18 inches from the end of the tail pipe and the "flame-thrower" coil is mounted under my driver's seat.

This uses the "cut the engine's ignition and pump the unburnt fuel out the exhaust" trick.

Hope this helps ~brad

Last edited by Shadow92_22; 11-10-2005 at 11:59 PM. Reason: Forgot the picture the first time...
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Old 11-11-2005, 12:19 AM   #23
 
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Although, if you were injecting seperate fuel for the flame-thrower and didn't want to cut your ignition, just ignore the wiring to the relay and hook the switch directly to the flame-thrower coil's positive side.
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Old 11-11-2005, 12:49 AM   #24
 
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A friend of mine had a flame thrower on a 3" side exit exhaust on a T-II Reliant. It was great fun screwing around in traffic or with the ricers. I remember getting into a big rolling pack of Ricers and him flipping the FT several times. Got alot of races and stupid wide eye looks that night. A crowd usually circled at the track had him hit it several times at the end of the day. It came to an end however when he got pulled over after flipping it on down a road. From what he told me the cop made a wide arc around the drivers side of the car and asked him about the FT. He took his license and registration and when to his squad car and started laughing for about 10 minutes and gave my buddie a warning. I think I have a picture of it somewhere, I'll try to dig it up.
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Old 11-11-2005, 02:42 AM   #25
 
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I think Russ Jerome had some vids of his Omni throwing flames. Almost made a hot dog???
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Old 11-11-2005, 03:52 AM   #26
 
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you dont want to use spark retard like that on a turbo car for "fun" That will burn up your turbo.
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Old 11-11-2005, 06:54 AM   #27
 
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Quote:
Originally Posted by BLASINTEBO
FLAMES LOOK GOOD BUT I DON"T KNOW IF IT WILL LOK AS GOOD ON A TD WITH ONLY ONE TAIL PIPE AND ALL>>> NOW IF THERE WERE A SIDE EXIT THAD WOULD LOOK BAD.

LITLE OMNI WITH 3" EXIT THAT WOULD BE SHIZNIT. DOES ANYONE HAVE A PICTURE OF A TD SHOOTING FLAME? THAT WOULD BE COOL AS A DESKTOP.
I have a few pictures of reeves car shooting flames from sdac-14 pm me with your e mail adress if you would like them
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Old 11-11-2005, 08:00 AM   #28
 
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i think my engine is running rich though.
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Old 11-11-2005, 08:05 AM   #29
 
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dodgez's booseted mopar vid has a couple FT cars.....
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Old 11-11-2005, 08:09 AM   #30
 
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If I run my car straight pipe I'm told everytime I shift I get flames out the cut out. Once I had it shot out the side exit when I miss shifted. It was dark out to and the ditch light up in a big orange flame came out and it also made pretty good sound. I know it is illegal in wisconsin to have any thing make your exhaust igite. But this was what I going to do. I going exhaust wrap the downpipe to the cat which I also go to wrap and go all the way to about 12'' from the tip. I thinking this way I make the cat warm engough to naturally igite the exhaust. would that work? This is where the flames would come out on my SC.

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