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Nissan NA engine

From Wikipedia, the free encyclopedia
NA engine
NA20P engine
Overview
ManufacturerNissan Machinery
Layout
ConfigurationNaturally aspirated Straight-4
Displacement1.6–2.0 L (1,627–1,998 cc)
Cylinder bore81.5 mm (3.21 in)
86 mm (3.39 in)
Piston stroke78 mm (3.07 in)
86 mm (3.39 in)
ValvetrainSOHC
Combustion
Fuel typeGasoline
Liquefied petroleum gas (in commercial vehicles)
Cooling systemWater-cooled
Output
Power output76–100 PS (56–74 kW)
Torque output12.8–17 kg⋅m (126–167 N⋅m; 93–123 lb⋅ft)
Chronology
PredecessorZ series

The Nissan NA family of straight-four engines is a series of engines manufactured by Nissan (Nissan Machinery). It is the replacement of the Z series, on which its design is based, and is mostly used in commercial vehicles due to its use of Liquefied petroleum gas for fuel on engines with a "P" suffix code.

NA16S

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  • Engine type: 1.6 L (1,627 cc), 81.5 mm × 78 mm (3.21 in × 3.07 in) bore and stroke, SOHC[1]
  • Output: 76 PS (56 kW) at 5,000 rpm
  • Torque: 12.8 kg⋅m (126 N⋅m; 93 lb⋅ft) at 3,200 rpm

Applications

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NA20P

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  • Engine type: 2.0 L (1,998 cc), 86 mm × 86 mm (3.39 in × 3.39 in) bore and stroke, SOHC, carburetted
  • Output: 82 PS (60 kW) at 4,600 rpm
  • Torque: 16.2 kg⋅m (159 N⋅m; 117 lb⋅ft) at 2,400 rpm

In 1998 the NA20P was updated, with redesigned combustion chambers which increased power and torque while lowering fuel consumption. A new catalyst reduced emissions, making it the first LPG-engined passenger car to be designated a low-pollution vehicle in several Japanese cities and prefectures.[2]

  • Output: 85 PS (63 kW) at 4,600 rpm
  • Torque: 17 kg⋅m (167 N⋅m; 123 lb⋅ft) at 2,400 rpm

Applications

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NA20PE

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This fuel injected, LPG-powered variant was introduced in September 2010 and met new, stricter emissions regulations.

  • Engine type: 2.0 L (1,998 cc), 86 mm × 86 mm (3.39 in × 3.39 in) bore and stroke, SOHC, multi-point fuel injection
  • Output: 85 PS (63 kW) at 4,400 rpm
  • Torque: 17.3 kg⋅m (170 N⋅m; 125 lb⋅ft) at 2,400 rpm

Applications

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NA20S

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  • Engine type: 2.0 L (1,998 cc), 86 mm × 86 mm (3.39 in × 3.39 in) bore and stroke, SOHC[1]
  • Typical output: 100 PS (74 kW) at 5,000 rpm
  • Torque: 17 kg⋅m (167 N⋅m; 123 lb⋅ft) at 3,000 rpm

Applications

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References

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  1. ^ a b c d Datsun: ニューパワーNA20、NA16新型ガソリンエンジンシリーズ搭載 (Catalog) [Datsun: New Power with new NA20/NA16 gasoline engine series] (in Japanese), Nissan, March 1990, p. 15, C1171-0033AGK
  2. ^ "セドリック/グロリア セダンを一部改良" [Some improvements to Cedric/Gloria sedan] (Press release) (in Japanese). Nissan Motor Corporation. 1998-06-15. Archived from the original on 2023-02-08.