Toyota NZ engine

The Toyota NZ engine family is a straight-4 piston engine series. The 1NZ series uses aluminum engine blocks and DOHC cylinder heads. It also uses sequential fuel injection, and has 4 valves per cylinder with VVT-i.

Toyota NZ engine
Overview
ManufacturerToyota
DesignerYasushi Nouno, Hiroshi Tada, Toshifumi Takaoka
Production
  • 1NZ-FXE: from December 1997
  • 1NZ-FE: from July 1999
  • 1NZ-FXP: from 2017
  • 1NZ-FE Turbo: from 2004
  • 2NZ-FE: from October 1999
Layout
ConfigurationNaturally aspirated Straight-4
Displacement
  • 1,299 cc (1.3 L)
  • 1,497 cc (1.5 L)
Cylinder bore
  • 75 mm (3.0 in)
Piston stroke
  • 73.5 mm (2.89 in)
  • 84.7 mm (3.3 in)
Cylinder block materialAluminium
Cylinder head materialAluminium
ValvetrainDOHC 4 valves per cylinder with VVT-i
Valvetrain drive systemTiming Chain
Compression ratio9.5:1-13.4:1
Combustion
TurbochargerIHI RHF4 turbo with intercooler
Fuel systemSequential fuel injection
Fuel typePetrol
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output74–148 hp (75–150 PS; 55–110 kW)
Torque output111–200 N⋅m (11–20 kg⋅m; 82–148 lb⋅ft)
Chronology
PredecessorToyota E engine
SuccessorToyota NR engine

The engines are produced by Toyota's Kamigo Plant in Toyota, Aichi, Japan (1NZ for Prius, NZ for Vitz and ist, and for Sienta); by Siam Toyota Manufacturing in Chonburi, Thailand (NZ for NBC cars such as the 1NZ-FE for the Yaris and Vios); and by Indus Motor Company in Karachi, Pakistan (2NZ for Corolla).

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