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BMW M4 Gets Power-Adding Water Injection For MotoGP

BMW debuted a new water-injection system on its M4 safety cars at the MotoGP World Championship opener in Qatar last weekend, ahead of a planned production application in a M car sometime in the near future. For the rest of the MotoGP season the M


BMW debuted a new water-injection system on its M4 safety cars at the MotoGP World Championship opener in Qatar last weekend, ahead of a planned production application in a M car sometime in the near future.

For the rest of the MotoGP season the M4s will be doing double-duty as safety cars and test mules, by validating the water-injection hardware in a real-world high-speed setting across a broad range of climates. 

The system works by spraying a fine mist of ordinary water into the M4's inlet tract, which then absorbs heat from the air, reduces the chance of engine-destroying pre-ignition (or 'knocking') and, when the fuel/air/water mixutre is ignited, turns to steam to create a bigger bang.

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