Mazda E engine

The iron-block, alloy head E family was an evolution of Mazda's xC design. It was released in June 1980 with the introduction of the first front-wheel drive Mazda Familias and Ford Lasers. Some later variants of the E5-powered Mazda Familia and Ford Laser in Japan incorporated a full-time 4WD drivetrain. All E engines were chain-driven, 8-valve SOHC. Notable features include siamesed cylinders, aluminium rocker arms and pistons, thin block walls, and single valve springs - all in the interest of reducing weight.

The 1.1 L (1,071 cc) E1 was found in the 1980-1985 Mazda Familia and Ford Laser. It used a 70 mm bore x 69.6 mm stroke and produced 55 PS (40 kW) at 6,000 rpm. It was not replaced when the new Familia/323 appeared in 1985. The E1 was strictly intended for export markets where taxes based on engine size made this a popular alternative. It was never available in Japan, nor in North America or Australia.

The larger E3 displaced 1.3 L (1,296 cc) with a wider 77.0 mm bore. It was found in the 1980-1985 Mazda Familia, Ford Laser and FWD 1981-1986 Mazda GLC.

The 1.5 L (1,490 cc) E5 pushed the stroke to an undersquare 77mm x 80mm. It was used in the 1980-1985 Mazda Familia, Ford Laser and FWD 1981-1986 Mazda GLC. It was also fitted to the rear-wheel drive Familia Cargo/323 Wagon in the mid-eighties, replacing the earlier UC engine. In certain markets a twin-carburetted, high-compression version exists, dubbed the E5S.

The E5F was a fuel-injected variant of the E5, released in 1982 and available only in Japan.

The flagship turbocharged, fuel-injected and non-intercooled variant of the E5 was the E5T. Released in 1983 and available only in Japan, the E5T utilized an IHI-supplied VJ1 turbocharger running approximately 0.5 bar (7 psi) to produce as much as 115 hp (85 kW) and 119 lb·ft (162 Nm). Other notable advancements included an integrated knock sensor (supplied by Mitsubishi) and multi-point fuel injection as standard.

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