Fire popping exhaust

[F17BAD]

He is right...  flames = somethings not right

[ChowderV4]

oh i know, i wasnt arguing with that.   

luckily mine only glows haha

[paul herbert]

been told mine fires out flames on the strip but it is s charged and 100 shot of gas

[sharki786]

as said before: they only pop when there is no restriction (straight through pipe w/o any silencers or cats) i remember my mate had a straight through pipes (jap style on each side) for his rx7 and boy did that pop
mine pops aswell at 2k revs sounds like thunder (rumbling)

[dom]

My Mk4 spits the odd flame when booting it, usually when lifting off after a sharp burst of acceleration. It only does this after I got rid of the cat and fitted a 3" turbo back

[Khare]

Mine chucks out a small flame sometimes when I hit the limiter. Rumbles and pops at around 1800 if I'm coasting and when I change gear fast.

As said before, too many flames are not good for an engine. It's normal if it's a non restrictive system and it chucks out a small flame when giving it an absolute thrashing.

[Rmachines]

The ECU/Engines mission is to achieve stoichiometric combustion at all RPM and load ranges, We all know thats not 100% possible, i don't think it should quite be spitting flames though.   However, its normal to throw fuel down the pipe when on the limiter, as it cuts the spark not the fuel.  But, realistically, it doesn't take much of an over fuel to cause a backfire, and were not talking about "new" lean burn engines here..... so i think to see flames, is kind of "normal" considering the straight through pipe

[sharki786]

The ECU/Engines mission is to achieve stoichiometric combustion at all RPM and load ranges, We all know thats not 100% possible, i don't think it should quite be spitting flames though.   However, its normal to throw fuel down the pipe when on the limiter, as it cuts the spark not the fuel.  But, realistically, it doesn't take much of an over fuel to cause a backfire, and were not talking about "new" lean burn engines here..... so i think to see flames, is kind of "normal" considering the straight through pipe