I have to admit that I have never heard about a car using a water injection system, but the latest BMW M4 Coupe, which is now the latest Moto GT safety car, is using this system, which amazingly, produces more power and is more fuel-efficient.
But how does the water injection system work? First off, the water is injected into the collector, allowing a closer ignition “to the optimum value by lowering the tendency of the unit to knock.” But to achieve that, the BMW M4 Coupe would need a 5-liter tank installed in the trunk.
Every movement, the valves as well as the ignition system is controlled via the car`s sensors which connects all that with the engine. For a proper work, the car needs to refill the water tank every five stops.
Frank van Meel, the chief at BMW M Division, has mentioned that his department is presently working on a revolutionary water injection system, for improved performance and fuel reduction. “We will be using this technology in the BMW M4 MotoGP Safety Car for the 2015 season for the first time,” van Meel also concluded.
We are not sure how much more power the BMW M4 will be producing with this new water injection system, but it would be definitely higher than the stock 41 horsepower and 550 Nm of torque, for its 3.0-liter TwinPower Turbo unit.