Toyota SZ engine

Last updated
Toyota SZ engine
Toyota 1SZ-FE engine.jpg
1SZ-FE engine
Overview
Manufacturer Toyota, Daihatsu [1]
Production1999–present
Layout
Configuration Naturally aspirated straight-4
Displacement 1.0 L (997 cc)
1.3 L (1,298 cc)
1.5 L (1,495 cc)
Cylinder bore 69 mm (2.72 in)
72 mm (2.83 in)
Piston stroke 66.7 mm (2.63 in)
79.6 mm (3.13 in)
91.8 mm (3.61 in)
Cylinder block materialCast-iron
Valvetrain DOHC 4 valves x cyl. with VVT-i
Compression ratio 10.0:1, 11.0:1
RPM range
Max. engine speed 6500
Combustion
Fuel system Electronic fuel injection
Direct injection
Fuel type Petrol
Cooling system Water-cooled
Output
Power output 51.5–80 kW (69.1–107.3 hp; 70.0–108.8 PS)
Torque output 95–141 N⋅m (70–104 lbf⋅ft)
Dimensions
Dry weight 68 kg (150 lb)
Chronology
Predecessor Toyota E engine
Daihatsu H-series engine (for K3 and 3SZ models)
Successor Toyota NR engine (for some models)
Toyota KR engine (I3, for 1SZ-FE)

The Toyota SZ engine family is a series of straight-4 piston engines with a forward-facing exhaust. [1] Toyota Motor Manufacturing (UK) in Deeside produces SZ engines for the Yaris. [2] All three types of the SZ engine are built in Tianjin FAW Toyota Engine Co., Ltd. (TFTE) Plant No. 1 in Xiqing District, Tianjin, China. [3] [4] The 2SZ-FE and 3SZ-FE variations are also manufactured by PT Astra Daihatsu Motor's Karawang Engine Plant in Indonesia. [5] [6] [7]

Contents

1SZ-FE

The 1SZ-FE was jointly developed by Toyota and Daihatsu. It has 4 cylinders [1] It is 1.0 L (997 cc). 4 valve per cylinder. Bore and stroke is 69 mm × 66.7 mm (2.72 in × 2.63 in), with a compression ratio of 10.0:1. Output is 51.5 kW (69.1 hp; 70.0 PS) at 6000 rpm with 95 N⋅m (70 lbf⋅ft) of torque at 4000 rpm. It features VVT-i, off-set type crankshaft which reduces friction losses and narrow-angle valves. Engine weight of 68 kg (150 lb); was achieved by using cast-iron cylinder block produced by cold-box method.

Applications:

2SZ-FE

The 2SZ-FE is 1.3 L (1,298 cc). Bore and stroke is 72 mm × 79.7 mm (2.83 in × 3.14 in), with a compression ratio of 11.0:1. Output is 64 kW (86 hp; 87 PS) at 6000 rpm with 122 N⋅m (90 lbf⋅ft) of torque at 4200 rpm. Daihatsu's internal code for this engine is labeled as K3-DE/VE and the turbocharged version as K3-VET .[ citation needed ] The engine features VVT-i (except for K3-DE model). In China, this engine is usually known as the 4A13.

Applications:

3SZ-VE

3SZ-VE engine Toyota 3SZ VE.jpg
3SZ-VE engine

The 3SZ-VE is 1.5 L (1,495 cc), introduced in October 2005. First installed in 2005 on the second generation Daihatsu Terios. Bore and stroke is 72 mm × 91.8 mm (2.83 in × 3.61 in), with a compression ratio of 10.0:1 and redline of 6500 rpm. Output is 80 kW (107 hp; 109 PS) at 6000 rpm with 141 N⋅m (104 lbf⋅ft) of torque at 4400 rpm. Commercial variant in Daihatsu Luxio and Daihatsu Gran Max has output of 97 PS (96 hp; 71 kW) at 6000 rpm with 13.7 kg⋅m (134 N⋅m) of torque at 4400 rpm. [8] It features VVT-i.

Applications:

See also

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References

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