A special performance fluid claims to increase engine power by as much as 100bhp. In this episode, the team explores how it works, why it’s controversial, and whether the promised power gain is ...

Every motorhead dreams of squeezing a little more juice out of their engine, whether it is through simple upgrades like swapping their stock air filter for an aftermarket cold air intake or full-blown ...

Think back to science class in school. You were taught that the Earth is a gigantic sphere with a thin layer of atmosphere over it. Despite what Flat Earthers claim, the air we breathe does not need a ...

Gearheads and faithful Jalopnik readers already know the basics of an engine's bore and stroke, but for those that might be new here, let's dip our toes in the shallow end. An engine's bore refers to ...

In the interest of preserving hot rodding history, we frequently republish old stories simply for the fun of it, but in cases like this camshaft technical overview from three decades ago (“Choosing ...