Flamethrower Exhaust Made Easy

I just happened across this sight and saw an old thread about flame thrower exhaust systems. YOU DO NOT WANT TO BUY THE PREMADE KITS OUT THERE!!! They involve cutting spark to your coil to dump raw fuel through  you exhaust to be ignited by a spark plug off a secondary coil near the muffler. The raw fuel running through will wash out your rings extremely fast and ruin your catylitic converter. These kits just don't work proper at all with fuel injection. What you want to get is an extra coil, spark plug, small electric fuel pump, NOS fogger nozzle, some braided fuel line, a push button switch (only on when button is depressed) and another switch with a protective flip down cover. You split into your main fuel line and run that to the small pump and from the pump to the NOS fogger which  you will insert into the exhaust just before the muffler. You need to drill a hole in the pipe before the muffler and weld a nut there, making sure there is no air leaks. The spark plug will be inserted into the exhaust tip with a drilled hole and a helicoil. mount the coil near the spark plug. Wire it so that when the switch is thrown, power goes to the coil and one side of the push button switch. once you start the spark, push the button which powers the fuel pump and you have flames with no damage to your engine. Let the button go and allow the spark to run for a few more seconds - burns off any excess fuel that drips out. Make sure your fuel line is clear of the exhaust pipe and well insulated against vibration. When you go to turn this on also make sure that your RPMs are pretty high if parked. I wouldn't recommend this for backing off tailgaters, just for good clean fun. thanks- james

Ok these are old school. You are right about the kits though. I think you would be better off putting the NOS fogger after the muffler rather than in front of it. If you fill your muffler full of fuel you are creating a bomb on your car when you light it off . For best results, mount the spark plug and the fogger near the tip. (owner/installer)

Chase's Accessories

Ridgecrest, CA

in business since 92

What makes the coil spark?   Putting 12V into it doesn't do it.

spark plugMECP certified installer

Yeah, I read something to this effect in a hotrod mag, they said the kits suck too.

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Rick

Aztek T/A WS7 & 70 RAM AIR IV T/A

Moderator @ LS2, FAST LS1, FUELSLUT, The F-Body Hideout, LS1Turd & ChopperForums

rtcoronet wrote: they used to make these things back in the 40s & 50s  without a nos nozzle. there is bound to be a cheaper way. you difinitely don't want the raw fuel going into the muffler either.

Back in the day, they either yanked on the choke cord or 2-stepped the ignition....

Either way, it will kill your engine and make it run rich....

I've been installing these things for years and injection is definitely the way to go since there's no engine damage or loss of power....

Rick