Motorcycle engines live and die by how well they shed heat, and the choice between liquid and air cooling shapes everything from performance to maintenance. Riders weighing a new purchase or planning ...

In the classic air-cooled VW boxer engines—and even current motorcycle, ATV, and aircraft configurations—engine cooling is achieved through airflow alone. Cast cooling fins, surrounding cylinder ...

Making big power with today's high-performance parts is relatively easy. Just go online, choose the parts that match your performance target, andwait for the goodies to arrive. But after those extra ...

The cooling system in your car deserves more attention than just pulling into a gas station and saying "Check the water please." The cooling system handles nearly one third of the heat generated in ...

Cooled-EGR (Exhaust Gas Recirculation) systems have been used since October 2002 by five major engine manufacturers (Cummins, Detroit Diesel, International, Mack and Volvo) to reduce emissions of smog ...

Even if you don't know (or care) what a Btu is, you've probably seen a cooling system react violently once in your life. Usually taken for granted until it screws up, the cooling systems in our cars ...

The American motorcycle brand is shifting away from its classic engine design, and riders are fiercely debating the change. Here is the verdict.