Mazda B engine

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 (in some variants) the shaping of the piston crown allow sufficient clearance for the open valves in any possible piston position.

1.1 L (1,138 cc) B1 - (68.0x78.4 mm) - came only as a SOHC 8-valve. It was available in the 1987-1989 Mazda 121 and later model Kia Sephia in European and Asian markets. A fuel-injected variant was used in select European market 1991-1995 Mazda 121s

The 1.3 L (1,290 cc) BJ engine (78.0x67.5 mm) was a DOHC 16-valve engine, used only in the Japanese market Ford Festiva GT, GT-X, and GT-A models (1986.10-1993.01, GT-A from March 1991). It develops 88 PS (65 kW) at 7000 rpm and is equipped with Mazda's "EGi" single-point fuel injection. It is a short-stroke version of the B5/B6 engines.

1.3 L (1,324 cc) B3 – (71.0×83.6 mm). It was available in SOHC variants and was found in the Kia-built 1988–1993 Ford Festiva, the 1987–1989 Mazda Familia and its derivatives, as well as the Mazda 121 (also known as Autozam Revue) (54 hp and 72 hp version), and the 1987–1989 Ford Laser, and 1994–1997 Ford Aspire. Later variants were used in the Mazda Demio microcar as late as 1999.

Fuel Injected Engine: Horsepower: 63 hp (47 kW) at 5000 rpm Torque: 73 lb⋅ft (99 N⋅m) at 3000 rpm

Carbureted Engine: Horsepower: 58 hp (43 kW)

This page was last edited on 13 April 2018, at 18:39.
Reference: under CC BY-SA license.

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