Toyota SZ engine

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The Toyota SZ engine family is a straight-4 piston engine series with its exhaust facing forward. This engine was jointly developed by Daihatsu.


The 1SZ-FE is 1.0 L (997 cc). 4 valve per cylinder. Bore is 69 mm and stroke is 66.7 mm, with a compression ratio of 10.0:1. Output is 51.5 kW (69 hp) at 6000 rpm with 95 Nm 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 was achieved by using cast-iron cylinder block produced by cold-box method.



The 2SZ-FE is 1.3 L (1297 cc). Bore is 72 mm and stroke is 79.6 mm, with a compression ratio of 11.0:1. Output is 64 kW (86 hp) at 6000 rpm with 122 Nm of torque at 4200 rpm. It features VVT-i.



The 3SZ-VE is 1.5 L (1495 cc). Bore is 72 mm and stroke is 91.8 mm, with a compression ratio of 10.0:1 and redline of 6500 rpm. Output is 80 kW (107 hp) at 6000 rpm with 141 Nm of torque at 4400 rpm. It features VVT-i since 2006.



The 1.3L and 1.5L SZ engines are built in Karawang, Indonesia, Tianjin FAW Toyota Engine Co., Ltd. (TFTE) plant No.1. in China.[1]

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