Here is my setup

Stock engine and head gasket
Comptech aftercooled with upgraded SOS heat exchanger
3.4 in pulley = more or less 10 PSI
775cc injector
skunk2 test pipe with comptech catback
Hondata K-PRO
I got 350 whp on a dynapack with 94 octane

After the first tune the grunt was GREAT and the car pulled stronger than my brothers E46 M3 from 60mph in sixth gear. However the fuel consumption was terrible. my car consume litteraly twice the gaz for the same range. And the drivability under 2500 rpm was ON and OFF. I called my tuner and he said he could do something to improve both MPG and drivability.
Now the car is smoother but has also less grunt The good new is that fuel consumption is almost like stock )) I did 9.5 Liter for 100KM. I don't know how many MPG but it is better than before.

I want to know your experience with SC and fuel consumption.
Please share and discuss )
Ciao

 

Hmm, well my fuel consumption is about the same, and im at 11.5 psi with 750 injectors. How aggressive is your tune? Whats your afr's looking like? And mainly, are you constanly on the pedal?

 

I just got mine, and I'm going to hit my normal 200 miles/tank in the city with my first tank.