For decades, engineers have used small-displacement engines to prove that raw capacity is not the only path to victory. By pairing compact cylinders with clever breathing, high revs, and forced ...

Holy smokes, this diesel engine is small. It's like holding the power of a reliable Cummins diesel engine in the palm of our hand. Okay, maybe that's a bit of an exaggeration, and sounds a bit too ...

Small internal combustion engines usually keep things simple, relying on carburetors to handle metering the correct amount of fuel and air. Recently, [Carlos Takeshita] decided his small engine could ...