rb25det backfire/bogging

[ANVIL]

Im having a major bog/backfire issue with my car and it happens about 90% of the time. in any gear when I get to around 4.5k-5k rpm it just backfires like crazy. I havent been able to feel the full potential of my car yet because whenever I feel a backfire I shift gears. My blitz boost controller says I only max out at like 6.2psi of boost. I got new spark plugs in it and even threw in a can of torco that should have put me right around 100 octane but its still the same. Anyone have any idea or or what I can check to get this problem fixed???

[BoostFab]

Im having a major bog/backfire issue with my car and it happens about 90% of the time. in any gear when I get to around 4.5k-5k rpm it just backfires like crazy. I havent been able to feel the full potential of my car yet because whenever I feel a backfire I shift gears. My blitz boost controller says I only max out at like 6.2psi of boost. I got new spark plugs in it and even threw in a can of torco that should have put me right around 100 octane but its still the same. Anyone have any idea or or what I can check to get this problem fixed???

what is your setup as far as, fuel pump, bov, fpr... ??

[S12_hybrid]

CHECK YOUR INJECTOR CONNECTORS! And check injectors for continuity.

-Dan

[Knicks950]

i'm having the same problem with my rb25.. it happens at low boost as well. i have a turboxs type h bov, walbro 255, and nismo fpr. also brand new spark plugs. my car is untuned on stock ecu. is that the reason or could it be something else??? stock injectors as wellplease help me because it is definitely holding my car back

Pete

[Grim_Fandango]

it's most prob tuning as that was the prob with even though im on standa alone i when i was runnin really really Rich and it used to hapen too so i say tuning!

[ANVIL]

just the basics, greddy bov, nismo fpr, walbro 255, fmic