How hard is it to have modest flames/backfire come from your

my old r33 gtst had a turbo back exhaust, intake and a decat pipe / test pipe. A factor which both turbo and non turbo can help for flames is if its running rich. The skyline would pop crackle flames out everytime you were really hammering it then stopped for a corner for example and the flame would just linger out the tip and slowly disperse

Never change, /o/. Never change

you need a direct exhaust without silencer or catalytic converter, it happens when you change gear after running at full throttle because the air flow is largely reduced while injectors (or the carburetor) needs a bit more time to adjust the fuel flow and the unburnt part goes directly to the exhaust where the heat ignite it

Chop off the cat, you might get flames, might not. It depends.

>cut off exhaust right before the cat
>????
>flames

my xj can shoot flames ez pz

https://www.youtube.com/watch?v=mC0IuCqk0rc

old cars like mine with a bit richer mixture makes only the sound in the same situation because the fuel that goes in isn't enough to make an explosion visible from the rear but if you try hard enough on a 323i which is a 2.3l you can see them

as always a good engine with only the basic stuffs and no ecology shit is the answer

>>15011345
>ecology

>>15011352
yes ecology as a whole

>>15011345
This is like a drunk rambling. You mean no environment pollution controls? No cat is basically a necessity for this to happen. No resonators or mufflers also help to get that burning residual fuel in the exhaust to escape and become visible too. You need a good amount power to get the exhaust hot enough and you need a rich fuel mixture to result in fuel escaping the combustion chamber through the exhaust valve too

>>15011227
Trying to do this on an s2000... Being specific might help out a bit. If I did a cat delete, would I get what I desire?

>>15012108

No. You need to be running straight pipe. And even then, this only happens if your shit is hot, usually when something is wrong with the car to fuck the mixture. Also happens with nitrous.

remove the o2 sensor fuse and cat

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7KB, 235x279px

>>15011345
>no ecology shit

I have an 07 Rx8 and I shot flames plenty. it's hard when revving in neutral but when I'm WOT, flames always come out with every shift

all I have done is Agenecy Power midpipe + muffler and aem cai

Lol OP that video you just watched is using anti lag. You need a turbo to get that crazy of backfiring.