How To Backfire Old Cars WITHOUT MODS!!!

THIS WILL DAMAGE THE EXHAUST SYSTEM!!!
As long as the car isn't fuel injected and has a manual transmission, this should work. If you own an automatic transmission car that has a carb you're still in luck, scroll down. Be warned, it will most likely destroy your exhaust manifold gasket and muffler. Every car is different, but here's the general sequence: while in gear, I like to be in 3rd, get the engine turning about 2500rpm, turn the key to "off" to kill the engine, give the gas pedal a quick pump or two, and turn the key back to "on". Be very careful when turning the key, you don't want to turn it far enough that the steering wheel locks. The whole process takes about a second to complete. Experiment with the time the engine is off and the length of time the gas pedal is pressed.

Another method that's harder to master is - while in neutral rev the engine to redline, turn the key to "off", give the gas pedal a pump, and when the engine is just about to stop turning, turn the key back to "on".

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[Chinniciuni]

Will this damage a glasspack muffler? I own a 1969 Ford Falcon and recently put a glasspack on it. It never had a catalytic converter.

[tangledmess]

@Chinniciuni It'll blow all the fiberglass or whatever they shove in there out.

[GeenIdee2]

I've got a question for you guys:

How can you damage an exhaust system with backfire???

[tangledmess]

@GeenIdee2 When it backfires, there's so much pressure in the exhaust system it blows the muffler apart and can do the same to the exhaust manifold gasket.

[yamahaRT1M]

ah yes,i knew of some guy that did that in the red light district downtown.the hookers thought they were being shot at.

[UBERKron]

i used to love doing this, if you have a cat it will melt, i was pumping the gas rolling down hill for a good thirty seconds, when i turned it back on i lost my muffler and some hearing. it was worth it.

[AndriusCreations]

straight pipe is required to do this ? or stock is good ?

[GeenIdee2]

@tangledmess Backfire comes back true the intake system. That's why its called backfire ;)

[tangledmess]

@TheCiviced It's been 11 years and still running fine...

[tangledmess]

@jaggass No, only the exhaust parts. Mostly the exhaust manifold gasket and muffler.

[TheCiviced]

@tangledmess vv

this is possible on all cars not only oldtimers

let me say 1 thing, this is the baddest thing what you can do to your car, do this 1 month and your car would not start anymore

[RPS13DRlFT]

is that a 240z?