backfire?

[51OOO]

guys i have a r32 gtst "limitted mods",just had it on the dyno and all seems ok they tell me, however i get loud POPPING/BACKFIRE noise coming from the exaust.The guys at the dyno place said my air fuel mixtures were spot on?Any ideas it normally makes it when i am off boost and at mid range revs,then sooon as i put the foot on the accelerator it pop/backfires??? :flower:

[Kaido_RR]

i was told that the popin sound was normal when changing gears fast

[(B1) MR_fanny]

yeah sounds like normal skyline poppin.

[caminperth]

Do you have an atmo BOV? If so - that'll cause fuel to be dumped in when it vents and it'll come straight out the exhaust causing the backfire...

[51OOO]

nope standard one,??

OTE=caminperth]Do you have an atmo BOV? If so - that'll cause fuel to be dumped in when it vents and it'll come straight out the exhaust causing the backfire...