The turning point comes in the form of EFI systems that can literally be bolted on like a carburetor—only unlike a carburetor, these systems tune themselves. No jets, no adjustments, no laptops—just ...

For the casual enthusiast, the romance of lifting the hood of your project car and swapping that old-fashioned carburetor for high-tech electronic fuel injection (EFI) was often shattered by the ...

Some of us have been there. Others never have. For those who have seen the inside, we realize it's a scary and confusing place. We slowly found our way around the "safer areas," then ventured further ...

Electronic fuel-delivery and ignition controls have given us a new golden age of engine efficiency and performance. Most of us would never go back to the dark ages—say, before 1990—when you could ...

Combining ECM calibration with a diesel delete kit removes the EGR and DPF systems entirely, allowing the tune to operate ...

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 ...

Jack Roush once was the most hands-on team owner in the NASCAR garage. It wouldn't be odd to walk into the garage on a race weekend and see Roush under the hood, fiddling with a carburetor. But with ...