Fire shooting exhauast

[450whpGSX]

Can a car really shoot fire out the exhauast without having a sparkplug in the tip of the muffler? i have seen it done before but don't know if they had a sparkplug in the tip of the muffler.

 

[David15151]

I could get a good flame out of my exhuast with my RX7 at high RPM when i shifted. Its not like a flamethrower kinda flame.. its like a muzzle flash kinda flame. Ive been told mine would get up to about a 2 ft flash. Though.. ive never seen it myself as I am driving the car . Only hear it from people i raced.

 

[450whpGSX]

Why does it happen? Did you do anything in paticular to make it happen?

 

[krazywhitboy]

i believe you can also do it using a SAFC.....you richen up the a/f mixture, not 100% positive on that though and it can't be too good for your motor......

 

[Evo8driver]

yes it easily possible without the flame thrower kits. i believe it happens when some of the fuel/air mixture in teh chamber pass out the exhuast valve by accident and boom a flame.heres a pic from a vid of my friends mustang shooting dual flames

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[half-cocked]

For the most part cars run rich when compared to stoichometric A/F and there is unburned charge left in the exhaust, the sparkplug can light this charge off. We made a homemade on for a '80 VW Rabbit. Ran a lead and a ground to a switch inside the car, ran the wires to a Jeep CJ-5 Coil and sparkplug wire off the coil to the plug in the exhaust. We tooned for flames with that ride.

 

[turboTSi1320]

When I was running open downpipe, If i vented you could see a flash at night.( so I was told) But im not venting nor running open downpipe anymore so I dont know. My friends STi will shot a nice flame when he downshifts. Its because he has really bad boost spike and runs so rich (also venting)

 

[1LE]

My car used to shoot pretty good flames... Supra fuel pump on stock FPR...

 

[tsibryan]

The flames happen when you shift at high RPMs. There is a lot of fuel being pumped into the cylinders, so when you shift that extra fuel isn't all burned. It goes out the exhaust still on fire. In order to see the flames though, you'd have to shift from a really high RPM and/or be running rich, and also have a very low-restriction exhaust (i.e. no cat, or open downpipe. seeing exhaust flames is very common in racing cars.

 

[defrag010]

there are a bunch of guys with turbo and n/a rx7's here, and every one of the cars shoots flames. I think it's just a thing rotaries do because they run so hot/rich. one of my rotary friends did a top speed pull, and when he got to his top speed, his muffler was red hot and the internals of the muffler came out the back.

 

[David15151]

got to love them rotary engines.. 1.3 liter.. crazy

 

[evotuner]

DSM's can do it too.

COPY/PASTE

www.angelfire.com/ak5/evotuner/aemems2step.mpg

 

[phatTSi]

Man i love that video. I remeber being at his house one day and he hit the 2step and a huge flame came roaring out the exhaust.

 

[R3dR]

Pm me if you want a kit that can shoot flames up to 6 feet, ( does not force you to run rich or to shift etc.)

 

[MattnGsx]

I shoot flames... My fuel curves are rich on top. So when I run to red line, and shift slower (not quick shifting) I shoot a flame.