Nissan Z engine
|Predecessor||Nissan L engine (4-cylinder)|
|Successor||Nissan NA engine & Nissan KA engine|
|Cylinder block alloy||Cast iron|
|Cylinder head alloy||Aluminum|
|Fuel system||Carburator or fuel injection|
The Nissan Z series of automobile engines ranged from 1.6 L to 2.4 L and were produced from 1979 through August 1989. The Z series engines retained a nearly identical block to the earlier L Series with the exception of the Z24 which utilized a taller deck height to increase engine displacement. All Z engines were SOHC. The most notable feature of the Z-Series engine was the introduction of the crossflow cylinder head which increased performance and reduced emissions by moving the intake ports to the right side of the vehicle opposite the exhaust ports. This change allows the fuel air mixture to more easily enter the combustion chamber and also allows the exhaust port velocity to more effectively scavenge the cylinder and reduce reversion pulses. The Z series were replaced with the Nissan KA and NA engines.
The Z16 was available in the basic spec Nissan Navara (D21) in certain markets. It is an inline 4 with SOHC, 8 valves and a single downdraft carburator. Also was seen in a few low end model 910 jdm bluebirds
The Z18 is an 1.8 L (1,770 cc) straight-4 engine with SOHC and 8 valves and was essentially a crossflow version of the older L18. Bore and stroke were 85.0 x 78.0 mm. It produces 105 PS (77 kW) (SAE) at 6,000 rpm with a twin-barrel carburettor as fitted in 1980. An export version was rated 77 PS (56.6 kW) (DIN) at 5,600 rpm in the Datsun 180K (C210 Skyline), with power increasing to 86 PS (63.3 kW) in the Bluebird and 90–92 PS (66.2–67.7 kW) in twin-carb form, as fitted to the Bluebird SSS and export market Silvia.
- Nissan Bluebird/Datsun 180B (P910)
- 1978.11-1980.11 Nissan Laurel/Datsun 180L (C231)
- 1980.11-1982.09 Nissan Laurel (C31)
- Nissan Leopard 1800 (F30)
- Nissan Silvia (S110)
- Nissan Skyline 1800/Datsun 180K (C210)
- Nissan Skyline 1800 (R30)
- Nissan Violet/Auster/Stanza/Datsun 180J (A10)
The Z18E is a 1.8 L (1,770 cc) fuel injected engine produced primarily for the Japanese market. Most specs were the same as for the Z18, but max power increased to 115 PS (85 kW) (SAE) at 6,200 rpm in 1980 (Bluebird, Skyline).
The Z18ET is a 1.8 L (1770 cc) turbocharged and fuel injected engine produced primarily for the Japanese market. It produces 135 hp (101 kW).
The Z20S (S denotes carbureted) is a 2.0 L (1,952 cc) engine, with a 85.0 x 86.0 mm bore and stroke, produced from 1979 through 1984. It replaced the L20B using many of the same lower end components.
- 1979-1981 Datsun 510 (88 hp/66 kW SAE)
- 1979-1983 Nissan/Datsun Bluebird 910 (110 PS/81 kW at 5,600 rpm, 103 PS/76 kW DIN in Europe)
- 1981-1984 Datsun 720
- 1980-1986 Nissan Caravan/(Datsun) Urvan/Nissan Homy E23 (105 PS/77 kW at 5,200 rpm)
- 1986-1997 Nissan Caravan/Urvan/Homy E24
- 1979.10-1980.11 Nissan Laurel C230
- 1980.11-1984.10 Nissan Laurel C31 (110 PS/81 kW at 5,600 rpm)
In the US, the Z20S was only available in the 1980-81 510/A10.
The Nissan Caravan and Homy with this engine produced a maximum speed of 160 km/h. It was noted for being faster than its competitor Toyota Hiace, primarily because Z20S produced more power than the engines available in the Hiace.
The Z20E is a fuel-injected version of the Z20S engine produced from 1979 through July 1984. It also had longer connecting rods and shorter compression-height pistons than the Z20S. It produces 100 ps (74 kW). The Z20E was not available in the 720 pickup, which only used carburetted versions. The Z20 engine was not available at all in US-spec. 720 pickups nor California-spec. D21 pickups.
The Z22S (carb only) is a 2.2 L (2,188 cc) four-cylinder engine produced from 1981 through 1983. Bore and stroke are 87.0 and 92.0 mm. It produces 86 hp (64 kW) SAE as fitted to the US-market Datsun 720.
- 1981-1983 Datsun 720
The Z22E is a fuel injected version of the Z22 engine produced from 1981 through 1983, mainly for North America. This engine also has longer connecting rods and shorter compression-height pistons than the carburated Z22 engine it replaced.
The Z24 is a 2.4 L (2,389 cc) inline-four produced from 1983 through August 1989. A throttle-body fuel injected version (Z24i) was also produced, beginning in April 1985.
- 1983-1986 Nissan/Datsun 720
- 1986-1990 Nissan Hardbody Truck (Z24i)
- 1986-1990 Nissan Pathfinder
- 1987-1990 Nissan Vanette/Nomad
Note: All Z20, Z22 and Z24 engines were known as NAPS-Z (NAPZ or NAPEZ) engines, NAPS for Nissan Anti-Pollution System. NAPZ motors had dual sparkplugs per cylinder except the pre-82 versions and later versions of the Z24 as fitted to the Pathfinder. However all NAPZ engines sold in California reportedly had dual plug heads regardless of the year.
The fuel injected version referenced above was denoted as the Z24i (Throttle Body Fuel Injection) and was first available in the Nissan Model 720 ST pickup during the 1985 model year and was replaced in 1990 by the KA24E engine. Beside the fuel injection, a significant change for the Z24i was the addition of an optical crank angle sensor in the distributor rather than a vacuum advance and ignition module. This allowed for more precise engine management for the fuel injection system.
Engine Displacement - 2,389 cc Bore x Stroke:- 89.0 × 96.0 mm Compression Ratio:- 8.3:1
Years - 1984-1986 Power - 103 hp (77 kW) at 4,800 rpm Torque - 134 ft·lbf (182 N·m) at 2,800 rpm
Years - 1986-1987 Power - 103 hp (77 kW) at 4,800 rpm Torque - 134 ft·lbf (182 N·m) at 2,800 rpm
Years - 1988-1989 Power - 106 hp (79 kW) at 4,800 rpm Torque - 137 ft·lbf (186 N·m) at 2,400 rpm
- ↑ 1.0 1.1 Braunschweig, Robert; Büschi, Hans-Ulrich, eds. (March 6, 1980). Automobil Revue '80. 75. Berne, Switzerland: Hallwag, AG. pp. 258–262.
- ↑ 2.0 2.1 Büschi, Hans-Ulrich, ed. (March 10, 1983). Automobil Revue '83. 78. Berne, Switzerland: Hallwag, AG. pp. 404–405. ISBN 3-444-06065-3.
- ↑ (in Japanese) Car Graphic: Car Archives Vol. 11, '80s Japanese Cars. Tokyo: Nigensha. 2007. p. 141. ISBN 978-4-544-91018-6.
- ↑ Car Graphic Archives Vol. 11 ('80s), p. 141
- ↑ Automobil Revue '83, p. 407