Originally Posted by
RobertISaar
follow the BPW calc far enough back and it will most certainly be involved.....
Yup... From other masks it is the first thing used in BPW calculation. I believe both injector flow and displacement has been found in $EE, so reversing should find one more number in the calculation.
The value 1461.5 below is the Stoich AFR, where PFI uses 365.375 which is 1/4 of the TBI setting, I'd guess this is to do with firing of injectors per cycle difference.
Code:
TBI
; Val = 1461.5 * (VOL/RATE)
; VOL = Vol of 1 Cylinder in liters, (0.7125l)
; RATE = Injector flow in gms/sec
; 5.7l = 7.71 gms/sec (61.2#/HR)
; (VOL/RATE) = 0.0924 l/gm/sec
PFI
; Val = 365.375 * (VOL/RATE)
; VOL = Vol of 1 Cylinder in liters, (0.7125l)
; RATE = Injector flow in gms/sec
; 5.7l = 1.92751 gms/sec (#/HR)
; (VOL/RATE) = 0.3696 l/gm/sec
Reply With Quote
Bookmarks