Daihatsu H-series engine


The Daihatsu H-series engine is a range of four-stroke four-cylinder, internal combustion piston engines, designed by Daihatsu, which is a subsidiary of Toyota. These engines were produced from 1987 through 2009. Ranging from 1.3 L up to 1.6 L, these four-cylinder engines were built with lightness in mind, featuring a hollow crankshaft and camshaft, and the weight of a four-cylinder engine is similar to the 1.0 L three-cylinder CB engines. The H-series engine has aluminium engine blocks and cylinder heads, timing belt driven heads, water-cooled engine cooling system, equipped with both carburetors and Multi-Point Fuel Injection and only available in 16-valve SOHC design.

HC (1.3 L)

The engine first appeared in Daihatsu Charade G102/112 in 1987 and was discontinued in 2009. The displacement is 1.3 L, bore and stroke is 76.0 mm x 71.4 mm. Available with carburettor and fuel injection. The compression ratio is between 9.0:1 to 9.5:1. Maximum power is between at 6000–6500 rpm with of torque at 3200–4500 rpm. This engine was later replaced by the K3 engine.
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HD (1.6 L)

First appeared in Daihatsu Applause in June 1989 and discontinued in 2008. The displacement was increased to 1.6 L by increasing the stroke size of the HC engine to 87.6 mm but retaining the same 76.0 mm bore size. Available with carburettor or fuel injection. The compression ratio is between 9.5:1 to 10.5:1. Maximum power is between at 5600–6300 rpm with at 3200–4800 rpm of torque.
Applications:

HE (1.5 L)

The HE-E/EG engine first appeared in the Daihatsu Charade (G203/213) in 1993 and was discontinued in 2007. The displacement was decreased to 1.5 L by decreasing the stroke size of HD engine to 82.6 mm but retained the same 76.0 mm bore size. The compression ratio is 9.5:1. Maximum power is between at 5600–6300 rpm with at 3200–3600 rpm of torque. This engine was later replaced by the Toyota 3SZ-VE engine.
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