Originally Posted by
BLK02WS6
Here is your posted tune with only the commanded fueling changes (B3613, B3618, B3647). When I say commanded fueling - I think of it this way - commanded is the target you are trying to get to... the way you get there is by the VE and, if used, MAF tables. So, you set your targets at some sane reasonable value for your setup. Then, you correct the VE table based on your BEN readings until actual fueling (from your wideband readings) equals commanded readings. Then, after you have actual equal to commanded, you put it on a dyno and tweak commanded fueling (actual will follow at this point because you have corrected it already) to obtain optimum torque and horsepower throughout the RPM range.
With timing, start off conservative and raise it on the dyno to find optimum timing throughout the RPM range based on torque and horsepower readings...