In Reply to: Re: here's a vague answer.... posted by Steve on July 24, 2000 at 02:26:08:
A friend told me that all cars can do this by putting a spark plug in the muffler (protruding through the exhaust tip i'd imagine). I'm not sure exactly how this would work, but i'd imagine removing the catalytic converter (not a good idea IMO) and adding this spark plug would make you feel like Maverick in Top Gun. Did anyone see it on TNT tonight btw? Great to see it again after all these years!
Not to offend anyone here, but i'm sure any "Import Tuning" shop could provide you with flames.
BTW, i'm new to list.
Terry #2 (there is another Terry here i believe)
You're exactly right. It was common practice in the 50's to do that. Put a spark plug (or other device of the sort) in the tailpipe, mounted through a small hole in the side. Then wire it to a switch in the car you can hit while driving. The spark ignites the remnants in the exhaust gases and spits a little flame. Nice trick. Oh yea.. if you actually do this crazy shit and blow up your car, or the poor sap behind you - don't come calling me. ;-)
PS Terry2, welcome :)
People still do this here in Detroit. The car has a rich mixture, they rev it up, and as it idles back down they activate the spark plug(s) (dual exhaust). The flame is very short and short lived.
For an E30 M3 to do it while driving, I would imagine having a poorly maintained car that is running rich and removing the catalytic converter is probably the way to go. I can sell you a really shitty O2 sensor that might help your car run rich. :-) Black smoke is extra.