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 ...

Diesel injectors have gotten increasingly complex over the last twenty years of diesel development, but their basic design is fairly simple. Diesel fuel from the injection pump enters the mechanical ...

Shutterstock // Setta Sornnoi Over time and miles, your car might start to slow down. It might not accelerate as quick ...

The key ingredient to maximizing the peak performance of a diesel engine is increasing the amount of diesel being burned. On old mechanical-injection engines, the only way to do this was to modify the ...

This overview illustration will help you place many of the different sensors used in a multipoint fuel-injection (MPFI) engine such as a 5.0L Ford or GM tuned-port-injection (TPI) 305 or 350. One ...

Over time and miles, your car might start to slow down. It might not accelerate as quickly as it once did; the engine may not ...