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AGB
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For the first 22 hours and 15 minutes of the 24 Hours of Nürburgring, the Porsche 911 GT3 R Hybrid demonstrated pretty conclusively that being able to go 25 percent further on every tank of gas can be very beneficial in endurance racing.
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In the end, the driver heard a loud bang, and that was it. Something had failed in the engine.
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The system used in the Porsche 911 GT3 R Hybrid is markedly different from conventional hybrid systems in its configuration and components. The front axle features two electric motors, each developing 60 kilowatts (about 80 horsepower) to complement the 480 horsepower naturally-aspirated four-liter flat six that drives the rear wheels. The car ditches the heavy battery found in a conventional hybrid in favor of an electrical flywheel power generator installed inside next to the driver
The flywheel generator, with its rotor spinning at up to 40,000 rpm while mechanically storing energy, also works as an electric motor. Whenever the driver applies the brakes the flywheel generator is charged as the two front axle electric motors reverse their role and act as generators. This additional power is available after each charge for approximately six to eight seconds and can be used when accelerating out of a bend or while overtaking. The driver can use the extra energy from the charged flywheel generator, sending up to 120 kilowatts of stored kinetic energy to the motors.
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