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 ...

Many car crafters roll their eyes and tune out when bench racing turns to electronic fuel injection (EFI). We're not here to hijack you into believing that EFI is cheap or even simple. Carburetors ...

Garrett Motion. has filed a patent for methods and systems utilizing model-based calculations to control mass flow in internal combustion engines. The system includes a secondary air injection valve ...