An intercooler cools air that’s been compressed by a supercharger or turbocharger before it enters a vehicle's engine. The laws of thermodynamics mean that compressing air necessarily heats it up. But ...

The BMW M4 GTS is one of few production cars to use a water injection system. The M4 GTS sprays water into the intake manifold to cool down air for its engine. How in the world does water help make ...

Excess heat is the enemy when it comes to internal combustion engines. Operating temperature is ideal, but any degree above that starts to slowly sap power, put fluids to the test, increase friction, ...