When the auto manufacturers first introduced their newfangled multiport fuel-injection systems, many hot rodders feared that the days of performance tuning and tweaking were gone. However, nothing was ...

The droplet size of the fuel droplets produced by injector systems plays a central role in the control of the efficiency of the combustion process and the production of harmful emissions. As the ...

The fuel injector is the least understood component of the EFI system, but it is a critical part for a successful calibration. The job of fueling the cylinders comes with many design and engineering ...

When that Injector Pulse Width number gets past 100-percent on the data logger, it's time to prepare yourself for a piston or two to spray its glittering guts all over the track photographer. If you ...

Fuel injection systems inject fuel at just the right time and place to mix with air and form the mixture that drives the engine. Just about every new vehicle is fuel-injected. (The last carbureted ...

Most modern vehicles have multi-port fuel injection (MFI) with a separate fuel injector for each cylinder. This system mixes the fuel and air together right in the intake port for eachengine cylinder ...