UneekRJ

ok, after doing some serious speeds on the highway, or doing fast acceleration, sometimes i pop flames. a couple nights ago i went drifting after it rained and i was popping flames like theres no tomorrow. my friend taka was concerned and was worried my engine is gonna blow up. is there n e thing i could do to either: stop popping flames...or to make it run better?

TwinCam13BT

What are your mods? And did it just happend all of a sudden?

the krza

that is just unburned fuel in the exhaust, and the engine backfiring. if u have no cats, or a very free flowing exh, then u will get the gift of fire. be happy, there are some people who ask day in and day out "how can i get my rx7 to shoot flames"
but dont be worried, its just the fiery breath of the rotary

UneekRJ

alright...becuz my friend told me that popping orange flames is a sign of running lean...and thats not good. and also...my mods are intake...racing beat headers...n1 apex exhaust...single....no cats whatsoever

jspecracer7

...if you're backfiring, you are definitely NOT running lean. You are igniting unburn fuel. But if you have racing beat headers, how are you opening your six port?

Six port opens with exhaust pressure right?

jeff_oner

only on a series 4

UneekRJ

i dont have the six ports...well atleast i dont think i do...my friend JT helped me with it...he's like the mazda guru of the tampa bay brandon area