1227747 $42 VE1 + VE2 Fuel Tables

[EagleMark]

Since Dave brought this up and seems to be of intrest I'll give some calibration theory taking from some of the best calibrators/tuners.

First adding VE2 to VE1 fueling table is usually easy and only one number, (Refer to Dave W first post) for instance ADSU is 39.06 for the entire VE1 table, use the Offset +/- tool in TunerPro and add it in, zero out VE2 and save bin with new name protecting your starting bin. This is what you end up with.

Stock with VE1 and VE2 added together.


1227747 $42 does not have a big resolution of table compared to later masks with say double the amount of cells. Tuning basics says to start with a smooth table, open your wireframe veiw and do some manual smoothing to make the table look more consise, then use the smooth tool to finish it off one cell at a time or row by row, setting it to .10 is a huge smooth and .90 is a small adjustment, I use .5 so it ends up something like this below.

So where do you start? Well if you look at the table, not wire frame, basically leave all four corners alone. Max number in bottom right should be no higher then 95 max, lower is better if you have big enough injectors and fuel pressure to support engine HP.

After smooth.


Reason for this is the way the ECM/PCM get's it's VE number for a given cell, say your using data tracing or the engien is running in this cell.


Well the ECM/PCM does not use that cell alone! It is a calculation of that cell plus four surrounding cells.


With that you can understand how and why it's easier and more accurate let alone easier for the ECM, in this case a slow ECM to make adjustments to fuel as needed.

In the end of tuning and making adjustments via BLM readings and a spreadsheet the final tune would look something like this.