Funny Exhaust sound?

[Ash]

when i am reving over about 4,500Rpm and i shift gears or when i put the clutch in my exaust makes like a poping noise, it sounds a bit like if you light the spray from a deoderant can for a second.

both my BOV's are plumb back so i don't think my car is rich, so it probably isn't flames out my exhaust pipe?

actually come to think of it it only happens when my exhaust is hot and i am shifting over 4500.

its the first time i have really driven my car moderatly hard so this may be normal, i dont know.

anyway any suggestions or help would be much apprecitated

Thanks!

[KamikazeR33]

ur car wont shoot out flames unless the cat is removed

all skylines pop aparently on upshift/downshift

[akeenan]

mine doesnt!, however when it used to have a larger exhaust on it it did sometimes

[Ash]

ok so they all do it

thats fine. Thanks!

[WazR32GTSt]

mine doesn't i don't think. u sure its not running rich? maybe an O2 sensor is gone or something fuel related and you can't tell

[KamikazeR33]

i dotn get it much since i have a safc, but apparently if u have a 3' zaust and nothin else it does soem times cos of the richness

[Gester]

Yeah I just got my exhaust done and it pops sounds a bit like a tiny backfire when it gets a lot of rpm's suddenly

[T0nyGTSt]

Mine pops on over-run and I use a FC!

I dun care, it only does it sporadically.

T.

[Dragon18]

i was just ganna post about that my 180sx does tha to i think its got 3" from the cat havnt looked to see if its turbo back not sure

but when i change from 1 to second reving at about 4 to 5 it makes a small pop noise

i put in optimax and i personally think its shit car feels like it dosnt have as mucb balls with it so maybe thats it

[Gester]

Yeah mine does to. But it feels much faster when that happens. It only happened after the exhaust. I think its running a bit rich when this happens but other then that it accompany's the stock bov's tiny phsst sound