One of the most important measurements we make while tuning an engine is finding out what the actual balance of air and fuel was inside the engine. It doesn’t matter if we have a carburetor, port ...

If you build engines, tune cars, or even just like mashing your foot on the throttle with conviction, you’ve probably heard the term “wideband O2 sensor” being thrown around at the track, dyno ...

In a performance application at wide open throttle, the ECU needs to control the air to fuel ratio to hit a small target somewhat richer than stoichiometric. The narrowband sensors most OEs use only ...

Love classic cars and vintage engines? 🚗🔧 Join us as we explore the history, mechanics, and untold stories behind legendary vehicles! Subscribe now and never miss an episode! #ClassicCars ...

We may receive a commission on purchases made from links. Modern cars are designed to be more efficient and eco-friendly than ever. Automakers build vehicles with a wealth of advanced features to not ...

Somewhere to put your injectors and throttle body/bodies. Odds are, your current intake manifold is designed for carbs, and won't work particularly well with EFI. You will need to find/make a manifold ...

Modern vehicles are pretty complicated pieces of tech. Apart from emissions and other vital functions, the engine control system relies heavily on several sensors to regulate performance. That is ...

When [Robot Cantina] isn’t busy tweaking the 420cc Big Block engine in their Honda Insight, they’re probably working on some other completely far out automotive atrocity. In the video below the break, ...