Mazda RX-8 Hydrogen RE

The Mazda RX-8 Hydrogen RE is a 2003 bi-fuel version of the RX-8 sports car, in which the twin-rotor Wankel engine is configured to run on either hydrogen or gasoline. This is the fifth Mazda vehicle to be fitted with a hydrogen Wankel engine. The hydrogen tank, with a capacity of 110 liters at 350 bar stores up to 2.4 kilograms of hydrogen and is fitted in addition to the 61 liter gasoline tank. In 2005, Mazda obtained street approval for this vehicle. The following year, the first vehicles were leased to customers (Idemitsu and Iwatani). In November 2007, Mazda announced the delivery of 30 RX-8 HRE to the Norwegian hydrogen project Hynor.

The bivalent RENESIS Wankel engine has the following data:

Engine twin-rotor Wankel engine
Chamber volume 2 x 654 cc (equivalent Displacement: 2,616 cc)
Mode Hydrogen Gasoline
Performance 80 kW (109 PS) 154 kW (210 PS)
Maximum torque 140 Nm at 5.000 U/min 222 Nm at 5.000 U/min
Gearbox 5-speed manual gearbox
Maximum speed 170 km/h (H2-operation)
Acceleration from 0 – 100 km / h. 10 s
Range 100 km 550 km

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