How to make fire come out of a tailpipe

[crazychicken]

I am trying to make fire come out of the exhaust of my truck. I don't know how to do this, but i know it involves a spark plug and some insane stuff.

This is highly technical so please dont lock this

Someone please explain how this can be done

Note: I already searched on google


Thanks
david

 

[FuriousBroccoli]

You didn't search hard enough (i.e. clicking the first link google returns)

http://odin.prohosting.com/~forumtwo/jul01/20011117-4-000236.html
http://www.hotrodsetc.net/menu.html

 

[TonyG]

Really don't think this belongs in the highly technical section, but it is relatively easy to do. Does the engine in your truck have a carb? If so it is easy to do. You will need to tune the carb so it is running really rich. Next drill a whole the same size as the spark plug you are going to use in the end of your tailpipe and bolt it in place. Now you will need a coil, motorcycle or car/truck coil is fine, just the kind that is used on the older types of cars without the electronic/HEI ignitions. You will also need a momentary switch, same type that your computer uses just a heavier duty one. Mount the switch inside of your car and run a wire from it to the postive terminal on your battery then from the other post on the switch run a wire to the coil. Now hook the other terminal on the coil to the negative terminal or ground it the car the car frame really good, then just take a spark plug wire and attach it to the coil and hook it to the spark plug in the tailpipe. All you should have to do is rev your engine up, then let off the gas pedal and hit the switch at the same time as you let off the gas. If everything works right, you should have a flame coming out of your exhaust. If you don't have a carb, it becomes a little trickier to do. Some people can just rev their engine up then let off the gas pedal and it runs rich/hot enough that it will light without a spark plug.

 

[Evadman]

Be careful running that rich if you have a Catolitic converter. The richer the engine runs, the hotter it gets. You can melt it down.

You could also use an extra cold start injector from just abotu any vehicle, and have that spray into the exaust downstream of the muffler, then light it off with a spark plug.

 

[dejitaru]

*sigh* all that wasted energy

CO2 and CO expelled

 

[Codewiz]

Originally posted by: dejitaru
*sigh* all that wasted energy

CO2 and CO expelled

Don't even TRY TO complain unless you want to have Nascar discontinued.

I don't care for Nascar or any auto racing but I will always support their existance eventhough they waste tons of energy.

Some person doing this flame out of the tailpipe doesn't come close to wasting the same type of energy.

 

[Howard]

The richer the engine runs, the hotter it gets

Nope, engines run hotter when they run leaner.

But I like your suggestion.

... "catalytic"

 

Howard, catalytic convertors run much hotter when the engine run rich, why ?

The excess fuel is pumped into the convertor where it finishes burning.

 

[KenGr]

Right on Roger. Rich engines run cooler but the exhaust systems run hotter. I would suggest you don't try to make flames come out your exhaust. That should be left to movie stunt guys and Darwin award candidates. I remember a guy who did this when I was much younger. He pretty much blew the whole exhaust system off the car and fortunately only slightly burned the underside of the car.

 

[blahblah99]

all this smog and they wont let me run my built up little 2.0L sr20det legally.

 

[Confide]

Drill a hole in your tail pipe, so that you can screw a spark plug into the hole igniting end in the pipe, then run a wire from the end of the plug to a switch on your dash and then to you battery, and hammer down, flip the switch, i've heard of people getting 10ft flamez... have fun
Confide

 

[everman]

cops might not be too happy with 10 ft flames commin out the back of your truck...

 

[KenGr]

I seriously doubt the effectiveness of the "spark plug in the exhaust pipe" idea.

Point 1: Todays lean engines have so little unburned fuel in the exhaust at all throttle conditions I don't think it would ever ignite.

Point 2: Spark plugs work because they are hooked to coils and capacitor discharge systems (or the all electronic counterparts) to get a 20,000 volt or higher surge. How are you going to wire that system up to a dashboard switch? 12V won't jump the gap.

 

[JohnnyMcJohnnyJohn]

Tape = $1.57, book of matches = free, tailpipe on a 4 door 99 sunfire sedan = stock

making an ass of oneself on your local strip = priceless

 

[dkozloski]

Rev the motor, turn the key ignition key off and back on, retreive muffler from street.