VIDEO: Watch this breakdown of BMW’s Water Injection system

When the BMW M4 GTS first debuted, it made big headlines for sporting water-injection in its 3.0 liter twin-turbocharged I6 engine. That water-injection helped boost power from the standard M4 Competition Package’s 444 hp to a much healthier 493 hp. So what is water-injection and how does it work? This new video from Engineering Explained breaks it down.

Essentially, the water-injection system sprays an extremely fine mist of water into the intake manifold. When water is sprayed into the...


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