Numerous articles and stories have been prepared by hundreds of experts on how to improve the internal combustion (IC) engine for more speed, power or what have you. Millions of dollars worth of ...

To celebrate HOT ROD's 75th anniversary, we teamed up with CASTROL GTX to bring you some of the stories that exemplify the core of what HOT ROD is and reflect the brand's influence on America's car ...

Specifically, an internal-combustion engine is a heat engine in that it converts energy from the heat of burning gasoline into mechanical work, or torque. That torque is applied to the wheels to make ...

One of the more difficult technical aspects of diesel performance is choosing a turbocharger. If you put enough fuel through a diesel engine, it's going to run up against a point where the stock ...

More liters don't automatically mean more horsepower. Here's why a smaller engine can sometimes make significantly more power.

You're really flying; phone poles flash by in a blur as you nail the pedal to the floorboard, and then it happens-oil pressure drops to zero and the thunder turns to ...