Precision Turbo and Engine BigStuff3 GEN3 PRO SEFI (LS1) System Hardware & BigComm Software - Manual (Page 78)

BigStuff3 Pro SEFI System (LS1)
Version 1.0 77
To change a value in the dMAP Correction table, move the cursor using the PC’s mouse or
arrow keys to the cell to be changed. Input the desired value and hit “Enter” to save the change.
50. dMAP RPM Modifier (F10 – “Quick Key”)
The second table used to calibrate the MAP Transient Fuel is the dMAP RPM Modifier table.
Inputs to the table are used to increase or decrease the dMAP correction as a function of engine
RPM. The positive or negative value inputted into the table is the percent (%) applied to the
dMAP Correction table relative to the RPM (see below).
While the engine is running, a “real-time Ellipse” will move within the dMAP RPM Modifier
table relative to the current RPM “operating point”. Use it as a point of reference to help
calibrate the dMAP RPM Modifier table.
To change a value in the dMAP RPM Modifier
table, move the cursor using the PC’s mouse or
arrow keys to the cell to be changed. Input the desired value and hit
“Enter” to save the change.