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 (1.3 L HC) is similar to the 1.0 L three-cylinder CB engines. [1] The H-series engine has aluminium engine blocks and cylinder heads, timing belt driven heads, water-cooled engine cooling system, equipped with both carburetors (earlier models) and Multi-Point Fuel Injection (later models) and only available in 16-valve SOHC design.
Daihatsu H engine | |
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Overview | |
Manufacturer | Daihatsu |
Production | 1987–2009 [2] |
Layout | |
Configuration | Inline-4 cylinder |
Displacement | 1.3 L (1,295 cc) 1.5 L (1,498 cc) 1.6 L (1,589 cc) |
Cylinder bore | 76.0 mm (2.99 in) |
Piston stroke | 71.4 mm (2.81 in) 82.6 mm (3.25 in) 87.6 mm (3.45 in) |
Block material | Aluminium alloy [3] |
Head material | Aluminium alloy [3] |
Valvetrain | SOHC 16-valve |
Compression ratio | 9.0–10.5:1 |
RPM range | |
Redline | 6000-6500rpm |
Combustion | |
Fuel system | Carburettor Fuel injection |
Fuel type | Petrol |
Cooling system | Water-cooled |
Output | |
Power output | 73–125 PS (72–123 hp; 54–92 kW) |
Torque output | 95–144 N⋅m (9.7–14.7 kg⋅m; 70–106 lbf⋅ft) |
Chronology | |
Successor | Daihatsu K3 engine Toyota 3SZ engine |
First appeared in Daihatsu Charade G102/112 in 1987 and discontinued in 2009. The displacement is 1.3 L (1295 cc), bore and stroke is 76.0 mm x 71.4 mm. [4] Available with carburettor (HC-C/F) and fuel injection (HC-E/EJ). The compression ratio is between 9.0:1 to 9.5:1. Maximum power is between 73–94 PS (72–93 hp; 54–69 kW) at 6000–6500 rpm with 92–118 N⋅m (9.4–12.0 kg⋅m; 68–87 lbf⋅ft) of torque at 3200–4500 rpm. This engine was later replaced by the K3 engine.
Applications:
First appeared in Daihatsu Applause in June 1989 and discontinued in 2008. The displacement was increased to 1.6 L (1589 cc) by increasing the stroke size of the HC engine to 87.6 mm but retaining the same 76.0 mm bore size. [4] Available with carburettor (HD-C/F1) or fuel injection (HD-E/E1/EG/EP). The compression ratio is between 9.5:1 to 10.5:1. Maximum power is between 82–125 PS (81–123 hp; 60–92 kW) at 5600–6300 rpm with 115–144 N⋅m (11.7–14.7 kg⋅m; 85–106 lbf⋅ft) at 3200–4800 rpm of torque.
Applications:
The HE engine first appeared in the Daihatsu Charade (G203/213) in 1993 and was discontinued in 2007. The displacement was decreased to 1.5 L (1498 cc) by decreasing the stroke size of HD engine to 82.6 mm but retained the same 76.0 mm bore size. [4] The compression ratio is 9.5:1. Maximum power is between 81–100 PS (80–99 hp; 60–74 kW) at 5600–6300 rpm with 112–127 N⋅m (11.4–13.0 kg⋅m; 83–94 lbf⋅ft) at 3200–3600 rpm of torque. This engine was later replaced by the Toyota 3SZ-VE engine.
Applications:
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