Diesel fuel injectors are a relatively modern development that enable high gas mileage whilst at the same time facilitating the development of additional horsepower and torque, as well as cleaner emissions. In order for injectors to operate at their optimum level they require a supply of clean fuel. This is why the fuel filter is so vitally important to all fuel injectors as any contaminant or piece of debris can obstruct the mechanism inside the injector and cause performance to decrease.

In standard specification, the fuel injectors of most diesel cars and trucks are designed to offer the best economy, rather than the best performance. Using performance orientated injectors, however, it is possible to alter this balance to increase the flow through rate of diesel fuel and realize big increases in output from your engine. If you are looking to really increase the performance of the diesel engine in your car or truck then one of the best ways of achieving further improvements in power and torque is to use larger performance oriented diesel fuel injectors.

In order to achieve gains in engine output, performance fuel injectors are larger than standard models enabling a greater quantity of fuel into each cylinder. Now, upon hearing this, almost everyone would assume that injecting more fuel into the engine would increase fuel consumption, but in fact this isn't always true as there are various ways in which "larger" fuel injectors are distinguished from their standard counterparts. One common way that performance orientated fuel injectors can increase the power and torque output of a diesel engine is to use a greater number of holes or nozzles. Doing this means that when the fuel is squirted out into the cylinder it creates more of a fine mist of liquid which can be burnt more efficiently thereby increasing performance.

If you want to maximize diesel engine performance then I recommend fitting high quality diesel fuel injectors.