been having some problems with the car for the past 2 days...all of a sudden once i hit boost over 20+lbs the car starts to backfire out the exhaust..i've checked everything mechanical on the car and even swapped out the spark plugs....anyone with any suggestions?

 

List of mods?

Are you tuned?

 

255lph fuel pump
upper and lower ic pipes
intake
forge adjustable bov
bc 272 cams
tbe
o2 housing
megan exhaust manifold
exedy clutch
mbc
and tuned

 

please feel free to throw any ideas out there

 

thats not a "backfire"

 

fuel cut probably..

 

why would the fuel be cutting then? any ideas on that one that could lead me to fixing this problem

 

could be getting knock and your ecu is pulling timing. Wrong plugs? should go a step colder with those mods. Maybe you need to close up the gap a bit on your plugs even to 24. coils may not be producing a strong enough spark in which you may need an amplifier such as an hks dlii or okada plasmas or something of that nature. just throwing out a few things it could be.

 

thank you for the tips i will try that tomorrow right after work and let you know how it works out