Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI System Hardware & BigComm Software - Manual (Page 64)

BigStuff3 Pro SEFI System
Version 2.1 – February 2011 57
Cell Values Selected in a Column
13
13
14
13.9
Interpolated Result from Cell Values Selected Above
13
13.3
13.6
13.9
If a range of cells (multiple rows and columns) are selected and the “Interpolate” “cell-fill” option is
selected the ECU will use the value in the cells at the bottom left and top left corners, bottom left and
bottom right corners and the bottom left and top right corners of the entire range and interpolate the
numbers in between so that the values are linear.
Range of Cell Values Selected
13 13 13 13
13.8 13.8 13.8 13.8
14.1 14.1 14 14
14 14.2 14.2 14
Interpolated Result from Range of Cell Values Selected Above
13 13 13 13
13.3 13.3 13.3 13.3
13.6 13.6 13.6 13.6
14 14 14 14
 Cancel – Hit cancel to disregard making any changes.
Example Air Fuel Ratio Tables
Example air fuel ratio tables, for a normally aspirated street engine, a super charged engine and a
turbocharged engine, are shown below. The air/fuel ratio values in these cells can be used as base lines
for each of the engine configurations. The “Example Maps” below are segmented into engine
operating areas (Cruise, Idle, Wide Open Throttle, etc.) to help the user understand what part of the
map is “active” under different driving conditions (engine speed and load combinations).