We suspect that for just about anyone firing up a new engine on a dyno for the first time, the anticipation is something akin to buying a lottery ticket—you're not sure what to expect, but hope for ...

It's a story as old as hot rodding itself. It starts with the sales pitch-"Buy my widget and your engine will gain 50 hp"-and ends with a disappointed customer with a car that sure doesn't feel like ...

The Toyota GR Yaris fitted with a single exit exhaust and anti-lag system delivers an extremely aggressive turbocharged ...

The Lancia Delta HF Integrale Group A delivers a raw turbocharged engine note during dyno testing and acceleration runs. This video captures full load pulls, onboard driving, and real throttle inputs, ...