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The Mazda RX-8 utilizes a rotary Wankel engine, and the non-reciprocating piston engine uses a triangular rotor inside a near oval housing, producing from 141 kW (189 hp) and 164 lb⋅ft (222 N⋅m) of torque, to 177 kW (237 hp) and 159 lb⋅ft (216 N⋅m) of torque from launch.
The Mazda RX-8 Hydrogen RE is a 2003 bi-fuel version of the RX-8 sports car, in which the twin-rotor wankel rotary engine is configured to run on either hydrogen or gasoline. This is the fifth Mazda vehicle to be fitted with a hydrogen wankel rotary engine.
Outdated annual Mazda Wankel "rotary" engine sales without RX-8 and without industry engines (data source: Ward's AutoNews) Mazda was fully committed to the Wankel engine just as the energy crisis of the 1970s struck. The company had all but eliminated piston engines from its products in 1974, a decision that nearly led to the company's collapse.
After Mazda RX-8 production ceased in 2013, Mazda has carried on with testing prototypes to re-introduce the rotary as part of the "SkyActiv" lineup, dubbed SkyActiv R, displacing 1600 cc and featuring direct injection, laser ignition and forced induction. Wankel family – 1.0 L-2.0 L Wankel (1967–present) 10A – 1.0 L (1967–1973)
The Mazda RX-7 is a front-engine, rear-wheel-drive, rotary engine-powered sports car that was manufactured and marketed by Mazda from 1978 until 2002 across three generations, all of which made use of a compact, lightweight Wankel rotary engine.
Mazda's RX-8 car with the Renesis engine (that was first presented in 1999), met in 2004 the United States' low emissions vehicle (LEV-II) standard. [53] This was mainly achieved by using side porting: The exhaust ports, which in earlier Mazda rotary engines were located in the rotor housings, were moved to the side of the combustion chamber.
Petrol engine (naturally aspirated pistonless rotary engine) – MEP 2.15 MPa (21.5 bar), 170.8 N⋅m (126.0 lbf⋅ft) per litre – 2005 Mazda RX-8 222 N⋅m (164 lbf⋅ft) Petrol engine ( forced-induction pistonless rotary engine ) – MEP 3.03 MPa (30.3 bar), 241.38 N⋅m (178.0 lbf⋅ft) per litre – Mazda RX-7 turbo 313.8 N⋅m (231 lbf⋅ft)
Long a proponent of the rotary engine, Mazda maintained a rotary-engine road car for many years, though sales of the RX-7 were stopped in North America after the 1995 model year (with Japanese-market production ending in 2002) until the introduction of the 2003 RX-8. The RX-8 utilized a new generation of the Mazda Wankel engine, dubbed "Renesis ...
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