okay i put a 60mm jeep tb on my car and ported out the stock intake, now when i hit the studder box. it back fires and pops flames out the exzhaust. is that good or bad?
#100963, "RE: need little info" In response to Reply # 0 Sep-15-06 05:15 AM by xcasbonx
Do you have a wideband? Take a look at your AFR.
My guess since you added the Jeep TB and ported the intake plenum opening, that the increase in airflow is making you run richer. I don't have this experience, but I wouldn't think this mod alone would all of a sudden cause backfiring. You probably need a better tune.
I'm sure some others should be able to chime in here and help out.
#100969, "RE: need little info" In response to Reply # 3
no i dont have wideband will have one soon, but it does drive and run fine, just does it with launch control under boost. thanks for the help. i will go and see if i can fix it a little