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flames from tailpipe?


Guest bang847

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Guest bang847

i guess this is sort of a tech question...

but how do they do that?

I have seen many jap videos of drifters that have tailpipes that light up...

anyone knows why/how?

(i dont want to do this but i was just wondering...)

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My near stock 240 will backfire and throw flame out the tailpipe if I accelerate hard then let off the gas quickly. But mine is caused by headers and free flow exhaust interacting with the smog pump.

 

It's funny too because I can predict when the backfire will occur. The smog pump A/B valve diverts into the intake manifold. So when I first let off, the car coasts with no engine back pressure. Then as the A/B valve starts to close to redirect the smog pump into the exhaust, you can feel the car start to decelerate. One or two seconds later and BAM, backfire with flame/sparks flying out the tailpipe. I use to bring traffic to a complete stop inside the Sepulveda tunnel. People must have thought it was a drive by.

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Guest Aaron

My dad wants to do that on his '49 Pontiac, and I think we are going to rig up a fuel pump, injector, coil, and spark plug at the tail pipes so he has push button flames.

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Guest Anonymous
Originally posted by zfan:

Lots of BEANS nono.gif Oops did not know you were talking about cars, but seriously beans work good on my tail pipe eek2.gif

 

Mike

Ah, a blue flame club member huh? tongue.gif
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Guest Anonymous

My stock 79 280zx does this sometimes when I am floored, and as soon as I let off the throttle to shift my friends tell me there is a flash in the end of my tailpipe, only visible at night. My favorite part is that the exhaust is like a stock system, in that the muffler is tucked under the drivers side, then it routes across to the passenger side and does a 90 degree turn to come straight out the back, and you can STILL see it flash!

 

Just my .02, I thought it was amusing, and my friends all love it.

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Guest Anonymous

You may want to check the lowrider type sites and street rod sites. They have components (maybe kits I havn't researched it) like pumps, small tanks and coils and ignitors to do it, I've seen a 49 merc shooting 10' flames at a show before, take that honda riceboy haha...

 

Regards,

 

Lone

 

Ps: Don't let the cops see you do this, or it'll be your butt that looks like it was hit with a 10' flame. :mad:

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Guest Anonymous

I'm not sure a cop would ticket you for that, but thats a far cry from shooting a controlled 10' flame out the back of the car for as long as you like. They frown on that road warrior stuff.

 

Regards,

 

Lone

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