Injector pressure i s the pressure at which the fuel can be injected into the vehicle. In heavy vehicles, injector pressure is 220 kg/cm square. It is used to set up the standard fuel injection in the vehicles. With the help of injector pressure we can calculate the amount of fuel needed, through the following formula:

Est. Horsepower x B.S.F.C / No. of injectors x duty cycle = lb/hr per injector

cc = lb/hr x 10.5