Is the amount of time an injector is turned on (open) to deliver fuel. Turbocharged engines BSFC is 0.60 to 0.65, Supercharged engines BSFC is 0.55 to 0.60. Most naturally aspirated gas engines have a B.S.F.C. This means that an engine with a B.S.F.C. Is the amount of fuel required to produce 1 H. Typical base fuel pressures are 43.5 psi (3 bars) or 58 psi (4 bars) for OEM applications.īrake Specific Fuel Consumptions (B.S.F.C.) Is the fuel delivery pressure at which the fuel pump and the fuel pressure regulator will be at start and idle. How can atomization and spray patterns be seen or evaluated unless the injector is removed from the intake? Some newer injectors have an off center directional fuel discharge hole, and have a directional spray that sprays at specific angles. Depending on the injector’s nozzle design, the injector may spray a single straight stream or multiple streams. A multi port fuel injector may have a cone shaped spray, but many do not. This type of spray pattern is seen in the old throttle body injectors. Many technicians think that all injectors have a conical cone shaped mist spray.
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