How does fuel injection work? Everything you need to know about fuel injection! Throttle body injection, multipoint port ...

The first thing you should understand is that direct-port, constant-flow fuel-injection—Hilborns, En-derles, Crowers, whatever—were never designed, nor intended, to be run on the street. All of these ...

PFI injectors spray fuel into the intake port upstream of the intake valve. It generally uses lower pressures than GDI and an environment that's less brutal on the nozzle, so light deposit issues may ...

Fuel injectors rarely get the same attention as turbochargers, superchargers, or cylinder heads, but they play a far more critical role than most enthusiasts realize. Every fuel-injected engine, ...