Why does my car back fire? What makes a WRX back fire?

PLs Help
LOrenzo

 

Bov?

 

x2. do you have air/fuel ratio gauge installed? you could monitor the mixture.

 

catless exhaust will most likely do it. bov will definately aid in it...

 

I have a TurboXS RFL bov....it's ghetto! it's JB welded to the piping. I have a FMIC.

 

Is backfiring Bad?

 

There's your answer

 

yea its the bov...it makes the subys run rich in between shifts or something with in turn makes the car snap crackle n pop.....to stop it, and recirc the vented air...plus the sound of a spool up is much better than the venting air

 

your not serious are you!? there is a reason why most people weld these on. if i were you i'd keep som duct tape in the car for when the jbweld breaks and your car dies out...or you could just go and have it welded on.

 

BOV causes the car to run rich in between shift. Unburn fuel travel down to downpipe and exhaust where the heat will ignite them, hence the backfire.

 

^^ i thought its when the unburned gasses reach the atmosphere where there is oxygen to complete the fire triangle.. ??

 

WTF is a fire triangle?

 

The fire triangle is a representation of the three components that are required for combustion; O2, Fuel, Ignition Source. If any of these components are missing there can not be combustion.

 

The explanation above your post is correct.

 

ahh, so i guess ignition would be the missing component not oxygen...