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flames out exhaust

1380 Views 18 Replies 11 Participants Last post by  blklegend
I've heard that you can make flames shoot out of your exhaust pipe in your car by drilling a hole and putting a spark plug a few inches from the end. Then, by connecting it to the battery and a switch, you could make a sort of flamethrower. I would just like to know if this is a buncha baloney or not, without having to actually go out and ruin an exhaust to find out.
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Its an old hot rod trick. Works on carburated cars, but its pretty ineffective on fuel injected vehicles. With carburated cars, you pull the choke to run the car rich or turn the engine off for a second. With FI cars, its not as easy to instantaneously run the car rich.
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