Well I didn't change any numbers to make it work up until Roberts injectors and fuel pressure to make it work. But here's how I came up with others
Part of the calculation given to us is in hacks, volume in liters of one cylinder liter/rate of one injector in grams per second. But I did increase precision by going 10 number past decimal point. Does not work at .1 need .1111111111
TBI V8 engine 1461.5 = 1 injector firing four cylinders
PFI V6 engine 487.166 = 3 injectors firing 3 cylinders, so one third the original 1461.5
PFI V8 engine 365.375 = 4 injectors firing 4 cylinders, so one fourth the original 1461.5
I suspect a SFI engine would be back to 1461.5 firing one cylinder per injector?
Back to TBI. Nothing was changed! These injector flows were all found in hacks and come out to 13PSI fuel pressure:
61 lb/hr (61.2#/HR) 7.71107029 gms/sec
76lb/hr (75.55#/HR) 9.519139876 gms/sec
80lb/hr (80.50#/HR) 10.1428293847 gms/sec
If you use those injector numbers the Grams/Second are accurate for one injector.
AND correct engine liters it comes out accurate to one cylinder liter!
5.7L 350 engine = 5.7329775012L / 8 for one cylinder.
7.4L 454 engine = 7.4390737152L / 8 for one cylinder.
Numbers come out perfect to BPC in bin...
All I have for 3.1L engine is 3.5 bore and 3.25 stroke = 3.1217081827L / 6 for one cylinder.
If the the 60V6 engines ran 43.5PSI at full pressure all the time? What would the difference in flow be with vacuum to without vacuum? Seems like the flow/pressure/differential is the only thing in question for the calculation? 207 is pretty close to 224 BPC?