I bought a used turbo kit and I have been running it for the past 2months, the kit came with 3 maps open exhaust tune,stock exhaust tune and a 15lbs race map(which I have not used) I only tried the two first ones(the maps were tuned by courtney green a tuner in Utah

When I floor it the car starts backfiring or bogging at high rpm it only happens sometime also. The car does not seem to pull very good on top,my all motor setup felt faster. What could be wrong?

 

You are running rich. My car backfired and choked/bogged before I got a tune. You need a tune. It doesn't matter that the car has pre-loaded basemap, you need a tune for YOUR car. Also, don't even think about running the 15lb map.

 

I would say start with a tune as well. Do you have any gauges? If so what are they reading.

 

every now and then Ill be right at 4,00RPMS in 2nd gear and then floor it, the car immedaitly goes to like 10.1 on the AFR gauge and basically shuts off, goes way rich (this is with METH though), my tuner needs to pull out soem fuel, your will need to do the same

 

You definately need gauges if you don't have any. Boost and wideband gauges will help tremendously when trying to diagnose a problem.

 

a 15psi map? does EMU control boost? i didnt think it did.

 

get it retuned asap...

 

and i wouldn't say this is a greddy kit issue, it will go with any kit if it's not tuned for your car.

 

yes get a retune..
just because you have a good tune for the past owners car doesnt mean it will work perfect for your car..