Toyota NZ engine

Toyota NZ engine
Overview
ManufacturerToyota
DesignerYasushi Nouno, Hiroshi Tada, Toshifumi Takaoka[6]
Production
  • 1NZ-FXE: December 1997[1]–present
  • 1NZ-FE: July 1999[2]–present
  • 1NZ-FE Turbo: 2003–2013
  • 1NZ-FNE: April 2003[3]–August 2014[4]
  • 1NZ-FXP: 2017–present
  • 2NZ-FE: October 1999[5]–2020
Layout
ConfigurationStraight-4
Displacement
  • 1,298 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 ratio
  • 9.5:1–13.4:1 (hybrid)
  • 10.5:1 (turbocharged)
  • 10.5:1–11.0:1 (naturally aspirated)
  • 12.0:1 (CNG)
RPM range
Max. engine speed6400 rpm
Combustion
TurbochargerIHI RHF4 with intercooler
Fuel systemSequential fuel injection
Fuel type
Oil systemWet sump
Cooling systemWater-cooled
Output
Power output58–152 PS (43–112 kW; 57–150 hp)
Torque output102–206 N⋅m (75–152 lb⋅ft; 10–21 kg⋅m)
Chronology
Predecessor
Successor (1.5 L only)

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

The engines are produced by Toyota's Kamigo Plant in Toyota, Aichi, Japan (for Prius, Vitz, ist and Sienta);[2] by Siam Toyota Manufacturing in Chonburi, Thailand (1NZ-FE for Yaris and Vios);[7][8] and by Indus Motor Company in Karachi, Pakistan (2NZ-FE for Corolla).[7]

From the second half of 2003, the valve train mechanism of the Japanese market 1NZ-FE engine was changed from a direct acting type to a indirect type with roller rocker arms and hydraulic lash adjuster.[9] The LPG-hybrid 1NZ-FXP and 1NZ-FE Turbo (2009 onwards) engines are also using this valve train mechanism.[10]

  1. ^ "Technical Development: Engines". Toyota Motor Corporation. Archived from the original on January 1, 2013.
  2. ^ a b "General Status of Plants in Japan: Kamigo Plant". Toyota Motor Corporation. Archived from the original on August 2, 2013.
  3. ^ "75 Years of Toyota - Toyota Probox (XP50)". www.toyota-global.com.
  4. ^ "1.5 CNG – トヨタ プロボックスバン / 2014年4月~2014年8月生産モデル". www.carsensor.net (in Japanese).
  5. ^ "Toyota Yaris Family Grows With New 1.3-Litre Versions". Toyota (GB). August 2, 1999. Archived from the original on October 22, 2015.
  6. ^ Itazaki, Hideshi (1999). The Prius That Shook The World. Tokyo: Nikkan Kogyo Shimbun. p. 147, 150, 160. ISBN 4-526-04376-1.
  7. ^ a b "Overview of Overseas Production Affiliates: Asia". Toyota Motor Corporation. Archived from the original on December 6, 2012.
  8. ^ "About STM". Siam Toyota Manufacturing. Archived from the original on February 19, 2014.
  9. ^ "Toyota NZ series engines". toyota-club.net.
  10. ^ "Camshaft & valve for Toyota JPN Taxi, NTP10-AHXGN". www.amayama.com.

Toyota NZ engine

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