Toyota SZ engine

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]

Toyota SZ engine
3SZ-FE engine
Overview
ManufacturerToyota, Daihatsu[1]
Production1999–present
Layout
ConfigurationNaturally aspirated straight-4
Displacement1.0 L (997 cc)
1.3 L (1,298 cc)
1.5 L (1,495 cc)
Cylinder bore69 mm (2.72 in)
72 mm (2.83 in)
Piston stroke66.7 mm (2.63 in)
79.6 mm (3.13 in)
91.8 mm (3.61 in)
Block materialCast-iron
ValvetrainDOHC 4 valves x cyl. with VVT-i
Compression ratio10.0:1, 11.0:1
RPM range
Redline6500
Combustion
Fuel systemElectronic fuel injection
Direct injection
Fuel typePetrol
Cooling systemWater-cooled
Output
Power output51.5–80 kW (69.1–107.3 hp; 70.0–108.8 PS)
Torque output95–141 N⋅m (70–104 lbf⋅ft)
Dimensions
Dry weight68 kg (150 lb)
Chronology
PredecessorToyota E engine
Daihatsu H-series engine (for K3 and 3SZ models)
SuccessorToyota NR engine (for some models)
Toyota KR engine (I3, for 1SZ-FE)

1SZ-FE

The 1SZ-FE was jointly developed by Toyota and Daihatsu.[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.In 2003 car facotry Zastava in Kragujevac put this model of engine in 5 Yugos for test.

Applications:

2SZ-FE

The 2SZ-FE is 1.3 L (1,298 cc). Bore and stroke is 72 mm × 79.6 mm (2.83 in × 3.13 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. The engine features VVT-i (except for K3-DE model).

Applications:

3SZ-VE
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. It features VVT-i.

Applications:

See also

References
  1. Yamaguchi, Jack (January 2000). "All in the Vitz family". Automotive Engineering International Online. Society of Automotive Engineers. Archived from the original on 2001-02-11.
  2. "Overview of Overseas Production Affiliates: Europe". Toyota Motor Corporation. 2012. Retrieved 2019-03-28.
  3. "Tianjin FAW Toyota Engine's Plant No. 2 to Mark Engine Production Start". Toyota Motor Corporation. 2007-04-20. Archived from the original on 2011-10-08.
  4. "Overview of Overseas Production Affiliates: China". Toyota Motor Corporation. 2012. Retrieved 2019-03-24.
  5. "Consigned Production and OEM". Daihatsu Motor. Retrieved March 24, 2019.
  6. Geczi, Adam S. (September 1, 2007). "Blitz Supercharged 2006 Toyota bB - Strength Behind The Chromosome". Retrieved March 24, 2019.
  7. "Engine Production Volumes in Indonesia". MarkLines. Retrieved March 24, 2019.
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