Find Fuel Flow After Pressure Change (see worksheet below)
To find the new FUEL FLOW rate after a fuel pressure change:
A 240 CC injector tested at 43.5 PSI is run at 50 PSI.
The horsepower value of this injector would increase by the same rate
(X 1.0721), if all other engine management systems remain unchanged.
Flow rate at old pressure
240 cc/Min divided by 10.5 = 22.86 Lb/Hr
Flow rate at new pressure
257 cc/Min divided by 10.5 = 24.48 Lb/Hr
So, the resultant change in pressure would yield the following:
240 cc/Min X 1.0721 = 257 cc/Min
22.86 Lb/Hr X 1.0721 = 24.51 Lb/Hr
36.58 Hp X 1.0721 = 39.22 Hp