Nissan CA18DET Engine Specs, Problems And Reliability

CA18DE is a 1.8L (1,809 cubic centimeters, 110.39 cubic inches) inline-4, 4-cycle gasoline motor of the Nissan CA series, manufactured from 1987 to 1989.

CA18DE features a DOHC system with 4 valves for each cylinder, a block of cast iron, an aluminum cylinder head, plus a well-balanced 5-bearing crankshaft. The motor keeps a Multiport Fuel Injection system.

It owns a cylinder block of cast iron 204.8 millimeters (8.06 inches) wide, a monoblock with a specific casting texture, with a 5-bearing support system. Having a cylinder bore of 83 millimeters (3.268 inches) and a piston stroke of 83.6 millimeters (3.291 inches), it reaches a compression index equal to 10.0:1. Every piston keeps two compression rings and one oil ring. Capacity is 132 hp (99KW or 134 PS) at 6,400 rpm and a torque of 159 Nm (16.2 kg/m; 117.3 ft/lb) at 5,200 rpm.

The breakdown of the engine code is as follows:

  • CA – Engine Family
  • 18 – 1.8 Liter Displacement
  • D – DOHC (Dual Overhead Camshafts)
  • E – Multi-Point Fuel Injection
  • T – Turbocharged

CA18DET Specs

Engine codeCA18DET
LayoutFour-stroke, Inline-4 (Straight-4)
Fuel typeGasoline
Displacement1.8 L, 1,809 cm3 (110.39 cu in)
Fuel systemMultiport Fuel Injection
Power adderTurbocharger Garrett T25
Max. horsepowerWithout intercooler:
145 PS (107 KW; 143 HP) at 6,400 rpm
160 PS (118 KW; 158 HP) at 6,400 rpm
With intercooler:
175 PS (129 KW; 173 HP) at 6,400 rpm
185 PS (136 KW; 182 HP) at 6,400 rpm
Max. torqueWithout intercooler:
201 Nm (20.5 kg·m; 148.3 ft·lb) at 4,000 rpm
211 Nm (21.5 kg·m; 155.7 ft·lb) at 4,000 rpm
With intercooler:
226 Nm (23.0 kg·m; 166.8 ft·lb) at 4,000 rpm
240 Nm (24.5 kg·m; 177.1 ft·lb) at 4,000 rpm
Firing order1-3-4-2
Dimensions (L x H x W):
Compression pressure
Standard12.0 kg/cm2 (11.77 bar, 171 psi) / 350 rpm
Minimun10.0 kg/cm2 (9.81 bar, 142 psi) / 250 rpm
Oil system
Oil consumption, L/1000 km (qt. per mile)up to 0.5 (1 qt. per 1200 miles)
Recommended engine oil10W-30
Oil type APISF/CC or SF/CD
Engine Oil Capacity (Refill capacity)With oil filter: 3.5 l (3-1/8 qt)
Without oil filter: 3.1 l (2-3/4 qt)
Oil change interval, km (miles)6,000 (3,500)
Ignition system
Spark plugWith catalyzer: Platinum-tipped type BCPR6-11 (NGK)
Without catalyzer: BCPR6ES-11 (NGK)
Spark plug gap1.0-1.1 mm (0.039-0.043 in)
Spark plug tightening torque20-29 Nm; 2.0-3.0 kg·m; 14-22 ft·lb

What Cars Have A CA18DET?

  • 1987-1988 Silvia S12 RS-X
  • 1989-1990 Nissan Silvia/180SX S13 (International market)
  • 1987-1989 Nissan Bluebird RNU12 SSS ATTESA Limited (Japanese Market)
  • 1989-1994 Nissan 200SX RS13-U Europe.
  • 1985-1990 Nissan Auster “1.8Xtt” and “Euroform Twincam Turbo”

Nissan CA18ET Engine Oil Capacity

The Nissan 1.8 CA18DET requires 4 quarts of 10W-30 oil with a filter replacement.

Nissan CA18DET Engine Problems And Reliability

CA18DET, a turbo version of the mentioned above the motor, is a 1.8L (1,809 cubic centimeters, 110.39 cubic inches) inline-four, 4-cycle gasoline engine released by Nissan in 1985-1994.

This engine features DOCH system with 4 valves for the cylinder, a block of cast iron, and an aluminum cylinder head. Having a Multiport Fuel Injection system, CA18DET utilizes a Garrett T25 turbocharger. Moreover, it has 2 modifications:  featuring an intercooler or not. Like its non-turbo variation, this motor features a cylinder bore of 83 millimeters (3.268 inches) plus a piston stroke of 83.6 millimeters (3.291 inches). The compression rate equals 8.5:1.

The aluminum alloy cylinder head keeps great cooling performance. The crankshaft controls the timing belt, which drives the camshaft. The size of intake valves is 34.0-34.2 millimeters (1.339-1.346 inches) while exhaust ones are 28.0-28.2 millimeters (1.102-1.110 inches). The intake valve has a duration of 240 degrees and lift 7.8 millimeters (0.307 inches). The exhaust valve has a duration of 248 degrees and lift 8.5 millimeters (0.335 inches). Besides, the motor features hydraulic valve lifters.

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The information provided in this article is for general informational purposes only. The author and publisher make no representations or warranties of any kind, express or implied, regarding the accuracy, adequacy, validity, reliability, availability, or completeness of any information presented. The reader is advised to consult a qualified professional, such as a mechanic or dealership, before making any decisions related to their vehicle's engine oil or maintenance.

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