page_title: Mazda B engine
section_title: B6ZE(RS)
hierarchical_section_title: Mazda B engine / B6ZE(RS)
caption_attribution_description: English: Mazda B6ZE(RS) on a '05 MX5
context_page_description: The Mazda B-series engine - not to be confused with the Mazda B-Series truck - is a small-sized, iron-block, inline four-cylinder with belt-driven SOHC and DOHC valvetrain ranging in displacement from 1.1 to 1.8 litres. It was used from front-wheel drive economy applications to the turbocharged full-time 4WD 323 GTX and rear-wheel drive Miata as well as numerous other models. The Mazda B-series is a "non-interference" design, meaning that breakage of its timing belt does not result in damage to valves or pistons, because the opening of the valves, the depth of the combustion chamber and the shaping of the piston crown allow sufficient clearance for the open valves in any possible piston position.
context_section_description: 1.6 L (1,597 cc) B6ZE(RS) - (78x83.6 mm) - Developed for the Mazda MX-5/Miata (1989–05) and Mazda Familia sedan GS/LS Full Time 4WD(JP Only,1994-1998).  The engine uses a DOHC 16-valve alloy head with a lightened crankshaft and flywheel to allow a 7,200 rpm redline.  An aluminium sump with cooling fins is an unusual feature of this engine. The US and European version (1990-1993) had a 9.4:1 compression ratio and produced 86 kW (115 hp) at 6,500 rpm, and 136 N⋅m (100 lbf⋅ft) of torque at 5,500 rpm. The later European version (1994-1997) produced 66 kW (90 hp) at 6,500 rpm, and 129 N·m (95 lb·ft) at 5,500 rpm. It was then updated to 82 kW (110 hp) at 6,500 rpm and 134 N·m (99 lb·ft) at 5,000 rpm for the models from 1998-2005. The Japanese version of the engine also had a 9.4:1 compression ratio and produced 120 hp (90 kW) at 6,500 and 100 lb·ft (136 N·m) at 5,500. After 1998 the power was increased to 125 hp (93 kW) at 6,500 and 105 lb·ft (143 N·m) at 5,000.
caption: B6ZE(RS)
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