The 1.8 L CA18DET was the last version of the CA engine to be released.
It produces 124 kW (169 PS; 166 hp) and 228 N⋅m (168 lb⋅ft).
It received 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.

It was used in the following vehicles:
1987-1988 Silvia S12 RS-X
1988-mid 1990 Nissan Silvia/180SX S13 (Japanese 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"
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.
The 1.8 L CA18DET was the last version of the CA engine to be released. It produces 124 kW (169 PS; 166 hp) and 228 N⋅m (168 lb⋅ft). It received 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.
It was used in the following vehicles:
1987-1988 Silvia S12 RS-X
1988-mid 1990 Nissan Silvia/180SX S13 (Japanese 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"
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.
Nissan CA engine