Wikipedia

Nissan CA engine

The CA engine is a series of 1.6 to 2.0 L (1,598 to 1,974 cc) Inline-4 piston engines from Nissan. It is designed for a wide variety of smaller Nissan vehicles to replace the Z engine and some smaller, four-cylinder L series engines. The "CA" stands for Clean Air, due to the installation of Nissan emission reducing technology, called NAPS-X.

Nissan CA engine
Nissan CA20S engine
Overview
ManufacturerNissan (Nissan Machinery)
Production1982-1994
Layout
ConfigurationInline-4
Displacement1.6 L (1,598 cc)
1.8 L (1,809 cc)
2.0 L (1,974 cc)
Cylinder bore78 mm (3.07 in)
83 mm (3.27 in)
84.5 mm (3.33 in)
Piston stroke83.6 mm (3.29 in)
88 mm (3.46 in)
Cylinder block materialCast iron
Cylinder head materialAluminum
ValvetrainSOHC 2 valves x cyl.
DOHC 4 valves x cyl.
Combustion
TurbochargerSingle Garrett T2 or T25 (CA18ET, CA18DET)
Fuel systemCarburetor (CA16S, CA18S, CA20S)
Throttle-body fuel injection (CA18i)
Multi-port fuel injection (CA16DE, CA18DE, CA18ET, CA18DET, CA20E)
Fuel typeGasoline
Cooling systemWater-cooled
Output
Power output81–166 PS (60–122 kW; 80–164 hp)
Torque output123–228 N⋅m (91–168 lb⋅ft)
Chronology
PredecessorNissan L engine & Nissan Z engine
SuccessorNissan SR engine (all except CA16)
Nissan GA engine (CA16)

The CA is an iron block, aluminum head design with a timing belt, cheaper to make than the timing chain setup on the Z and L engines. Earlier versions featured SOHC and eight valves. The new CA block design was a scaled-up E series block with timing shaft and other ancillaries removed. The oil pump is fitted directly onto the crank nose and the distributor is driven by the end of the camshaft. Like the E series and the A block from which the E was derived, Nissan used a taller block for the largest stroked 2.0-litre engine. The CA was designed to be compact and light, with a CA16 requiring only 195 litres (52 US gal; 43 imp gal) of space (compared to 280 litres (74 US gal; 62 imp gal) for the earlier Z16), while weighing 23% less at 115 kg (254 lb).[1]

Later versions featured DOHC with 16 valves for increased efficiency at high engine speeds and a smoother power delivery. The hydraulic lifters are interchangeable between all DOHC RB and VG series engines excepting those with solid lifters. The Nissan CA would also be developed into a diesel engine, known as the CD, which replaced the four-cylinder LD series.

Production of the CA series ceased in 1994. The engine was deemed too expensive to produce due to its cast-iron block, while it also no longer met the ever-changing Japanese emission standards emerging at the time. The 1.8 L and 2.0 L versions were replaced by the all-aluminium SR series as Nissan's primary four-cylinder engine, while the smaller 1.6 L version was replaced by the GA series. Engines for the low volume European markets, such as the 200SX, were supplied by the overstock between Japanese and Australian markets.

CA16

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The CA16 series of engines is a 1.6 L (1,598 cc) engine produced from 1985 through 1990. Bore and stroke is 78 mm × 83.6 mm (3.07 in × 3.29 in) and it was built either with carburetors or fuel injection.

CA16S

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The CA16S is a 1.6 L (1,598 cc) water cooling serial 4-cylinder OHC engine. It produces 81 PS (60 kW; 80 hp) at 5200 rpm and 123 N⋅m (91 lb⋅ft) at 3200 rpm.

Applications:

CA16DE

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The CA16DE is a 1.6 L (1,598 cc) engine produced from 1987 through 1989. It produces 122 hp (91 kW; 124 PS) at 6400 rpm and 137 N⋅m (101 lb⋅ft) at 5200 rpm. Bore and stroke is 78 mm × 83.6 mm (3.07 in × 3.29 in). It was a 16-valve DOHC engine with multi-port fuel injection, for front wheel drive use. North American versions used Nissan's NICS (Nissan Induction Control System), which opened up the secondary intake ports to each cylinder via a butterfly valve in each port. Activated at 3,900 rpm, this improved flow and performance resultingly. Additionally, on activation of the secondaries under a heavy load the fuel injection also went from sequential mode to simultaneous-pulse mode. These features were also found on North American CA18DE engines.

Applications:

CA18

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CA18S

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CA18S.

The 1.8 L (1,809 cc) CA18(s) was a carbureted version of the CA engine available in Japan. It produces 66 kW (89 hp; 90 PS) and 149 N⋅m (110 lb⋅ft). Bore and stroke is 83 mm × 83.6 mm (3.27 in × 3.29 in). It was used in the following vehicles:

CA18(i)

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The CA18(i) is a naturally aspirated engine it delivers 91 hp (68 kW; 92 PS) at 5200 rpm. The fuel in this engine is not delivered via Multi Port Fuel Injection (E letter code on MPFI engines), it's instead delivered by Throttle Body Fuel Injection hence the (i) letter on the engine code. Bore and stroke is 83 mm × 83.6 mm (3.27 in × 3.29 in), for a total displacement of 1,809 cc (1.8 L).

Applications:

CA18E

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The CA18E is a naturally aspirated, 1.8 L (1,809 cc), single-cam engine. It uses Multi Point Fuel Injection.

Applications

  • Nissan Bluebird 1.8 SSS-E (U11) - 115 PS (85 kW; 113 hp) at 5600 rpm, 16.5 kg⋅m (162 N⋅m; 119 lb⋅ft) at 2800 rpm
  • 1983.08-1985.08 Nissan Skyline 1.8 TI (R30)

CA18DE

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CA18DE.

The CA18DE is a 1.8 L (1,809 cc) DOHC engine produced from 1985 through January 1991. It produces 131 hp (98 kW; 133 PS) at 6400 rpm and 159 N⋅m (117 lb⋅ft) at 5200 rpm. It uses the same aluminium 16-valve head as the CA18DET, but it did not use the piston oil squirters that are found on the CA18DET. A crank girdle as found on all CA18DETs is fitted into some versions of the engine in some markets; Nissan's parts data system "FAST" has to be consulted or the sump removed to determine if it can be fitted.

Applications:

CA18ET

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CA18ET engine

The 1.8 L (1,809 cc) CA18ET was produced from 1984 through 1992. It is a turbocharged version of the CA18E, which produces 99 kW (135 PS; 133 hp) and 183 N⋅m (135 lb⋅ft) from a single Garrett T2 turbocharger which did not feature an intercooler. The low-pressure turbo has a 0.6 bars (8.7 psi) overcharge.[2] The engine has fuel and air delivered via ECCS Multiport Fuel Injection, a system developed together with Hitachi.

It was used in the following vehicles:

CA18DET

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CA18DET engine

The 1.8 L (1,809 cc) CA18DET was the last version of the CA engine to be released, manufactured from 1985 to 1994. It is a turbocharged version of the CA18DE, producing 124 kW (169 PS; 166 hp) and 228 N⋅m (168 lb⋅ft). It has a brand new DOHC aluminum head with 16 valves. The turbocharger was also upgraded to a Garrett T25 (.48 A/R) unit for increased flow capacity, and as such, was fitted with an intercooler to help prevent the onset of pre-ignition and/or detonation. Fuel was delivered via Multiport Fuel Injection. Bore and stroke is 83 mm × 83.6 mm (3.27 in × 3.29 in). An electronically controlled fuel injection system was used with 370 cc (23 cu in) (flow capacity) injectors.

There were 2 versions of the CA18DET available, yet only one was produced for Japan. The late model Japanese CA18DETs received 8 port (low port) heads, with butterfly actuated auxiliary ports in the lower intake manifold which corresponded with 8 ports in the head.

Below c. 3,800 rpm, only one set (4 ports open, 1 per cylinder) of long, narrow ports would be open, accelerating the intake charge to the cylinder. This allowed for quick spool and good low-end tractability. At the 3800 rpm change over, not only would the ECCS shift into batch fire (as opposed to sequential) fuel injection, but it also opened the second set of short, wide ports (8 ports open, 2 per cylinder) which assisted in high RPM flow.

This engine is known for stronger torque characteristics, as well as faster spool at lower RPMs. However, due to displacement-based taxation and cost of emissions testing in Europe, the CA18DET was sold as the only available engine in the S13 chassis 200SX (Euro model) until replaced by the S14 in 1994. The Euro motors received the 4 port (high port) head and intake manifold, as well as revised ECCS ("Electronic Concentrated Control System") parameters.

It was used in the following vehicles:

CA20

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The CA20 is a series of SOHC 2.0 L (1,974 cc) engine produced from 1982 through 1991 (possibly longer for the CA20P). Bore and stroke is 84.5 mm × 88 mm (3.33 in × 3.46 in).

CA20P

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The LPG-powered CA20P engine

The CA20P is a carbureted, single overhead cam designed to run on LPG. It came in two claimed different power outputs, initially 90 PS (66 kW; 89 hp) JIS gross at 5,600 rpm and later 82 PS (60 kW; 81 hp) JIS net at 4,800 rpm. The respective torque figures are 15.5 kg⋅m (152 N⋅m; 112 lb⋅ft) at 2,800 rpm and 15.2 kg⋅m (149 N⋅m; 110 lb⋅ft) at 2,000 rpm. This engine was usually installed in professional cars and was not regularly available to private buyers. It was replaced by the NA20P engine in mid-1991.

Applications:

CA20S

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The CA20S is an SOHC 2.0 L (1,974 cc) engine produced from 1982 through 1987, fed by a carburetor. It typically produces a peak power of 102 PS (75 kW; 101 hp) at 5,200 rpm and has a peak torque rating of 160 N⋅m (118 lb⋅ft) at 3,600 rpm.

Applications:

CA20E

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The SOHC 2.0 L (1,974 cc) CA20E was produced from August 1981 to 1991. It produces 78 kW (106 PS; 105 hp) and 160 N⋅m (118 lb⋅ft). Fuel was delivered via Multiport Fuel Injection. Dual spark plugs per cylinder were used in some variants of this engine for enhanced combustion efficiency, called NAPS-X.

It was used in the following vehicles:

CA20DE/CA20DET/CA20ET

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There was never a factory-produced twin-cam 2.0 L CA engine, nor there was a turbo version. However, the blocks are similar, and it is possible to fit the DOHC CA18DE/CA18DET twin-cam head into the SOHC CA20 block. However, the DOHC/SOHC manifolds are different and the timing pulley/belts are not compatible. Despite this, however, several examples of a CA20DET engine have been built.

Stroker kits

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Tomei and JUN of Japan produced 2–litre stroker kits for the CA18. Also companies like Norris Designs and Spool Imports produces CA20 stroker kits as well as a CA20 engine.

See also

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References

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  1. ^ Yamaguchi, Jack K. (1982), Lösch, Annamaria (ed.), "Japan: Shogun Strikes Back", World Cars 1982, Pelham, NY: The Automobile Club of Italy/Herald Books: 64, ISBN 0-910714-14-2
  2. ^ Mastrostefano, Raffaele, ed. (January 1989). "Prove su strada: Nissan Bluebird 1.8i Turbo" [Road Test]. Quattroruote (in Italian). Vol. 34, no. 399. Milan, Italy: Editoriale Domus. p. 166.
  3. ^ Flammang, James M. (1994). Standard Catalog of Imported Cars, 1946-1990. Iola, WI: Krause Publications, Inc. p. 175. ISBN 0-87341-158-7.
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