I'm getting sub 10's on A/F ratio. Check out the Bluefin thread for dyno graphs. Stock is about 10-11. I emailed Superchips and they said this was all cool because the car ran rich stock anyway.
Yep i got to 10.5 in the later half of the RPM range, and down to probably low 9's at redline.
Very curious that i'm much leaner, but that would also explain the higher EGTs. Haven't done any long solid heavy throttle driving to check if the heat is doing anything to the combustion cycle (like detonation) or if anything is being retarded...
Fuel wise the display says I average anywhere between 11 and 18 per trip. This is normal driving but my trips are normally about 3-4km to work and home again so I hardly get to get economy from crusing or from the engine warming up. I don't even know how accurate the reading is at such as short distance because I still seem to get 550 odd km per tank from normal city driving.
Same position here. Trips are usually <10K, even runs into the city barely make 10Km. Runs to my in-laws is about 30mins, with some short freeway type runs. Have seen it dip to low 8's when stock. Have done much driving since getting Bluefin though to compare. Maybe i'm still to early in the adaptation phase...
Also get the same tank reading like you do, although i don't normally come close to doing a full tank in a week (usually only half)...