Nissan FJ engine
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The Nissan FJ series engine was a straight-4 DOHC 2- or 2.4 L internal combustion engine produced by Nissan in the 1980s, first in 2.4 L guise as a rally motor for the 240RS, but then later de-stroked to 2.0 L for general production models when the 240RS could no longer race. The FJ20 weighs 366lb (166 kg); the KA24DE weighs 394 lb (179 kg). The 2.0 L variant was used in the US110 and S12 Nissan Silvia/Nissan Gazelle, and DR30 Nissan Skyline. The 2.4 L variant was used in the S110 silvia 240RS. While a 1.5 L variant was designed and a prototype built, it never actually went into production. It is acclaimed as the forefather of the CA engine. It has an aluminium head and an iron block, and was available in Japan and the UK. Datsun enthusiasts like to swap FJ engines into L or Z series powered vehicles. The FJ has similar mounting points to L/Z/KA blocks. It was discontinued in the late 1980s due to its prohibitive cost. It is most like the CA series because of the cam-over-valve design and iron block with lightweight head. The SR series later replaced the CA in 1991 with its more economical to manufacture rocker arm type valvetrain and aluminum block.
Contents |
[edit] The main parameter
| FJ20E | FJ20ET | FJ20ET With intercooler |
FJ24 | |
| Total displacement(cc) | 1990 | ← | ← | 2340 |
| bore×stroke(mm) | 89×80 | ← | ← | 92×88 |
| Compression ratio | 9.1 | 8.0 | 8.5 | 11.0 |
| Max power(PS/rpm) | 150/6000 | 190/6400 | 205/6400 | 240/7200 |
| Max torque(kgf·m@rpm) | 18.5@4800 | 23.0@4800 | 25.0@4400 | 24.0@6000 |
| Max torque(N·m@rpm) | 181@4800 | 225@4800 | 245@4400 | 235@6000 |
- The numerical value is gross mark (engine single purpose crankshaft output).
- A part of numerical value is different by skyline and Silvia/Gazelle.
- There is a version of the FJ24 with 275 PS (271 hp/202 kW)
[edit] FJ20E
Distinguished by the "E" for "Electronic Fuel Injection". Maximum output was 150 PS (110 kW).
The FJ20E was installed in the DR30 Skyline RS, as well as the US110 and S12 Gazelle/Silvia RS.
[edit] FJ20ET
"T" denotes turbocharged engine. Maximum output was 190 PS (140 kW) in the R30, and 185 PS (136 kW) in the S12. Boost pressure to achieve this power output was only 6-7 psi. Later intercooled versions produced 205 PS (151 kW) with a slight boost increase.
The FJ20ET was installed in the DR30 Skyline RS/RS-X/RS-X Turbo C and S12 Gazelle/Silvia RS-X; Turbo C versions of the DR30 were the only models which were intercooled. The plenum chamber was shortened in the S12 compared with the DR30 because of the smaller engine bay and thus produced slightly less torque and power. However the DR30 plenum can be fitted into the S12 engine bay (just) and this combination is used by what is currently fastest S12 Gazelle in the world, a 2,600 lb (1,200 kg) vehicle which runs 9.12 @ 153 mph (246 km/h) over the standing 400 m.[citation needed]
[edit] FJ24
200 or more were produced as a homologation car engine of World Rally Championship at that time according to the Gr.B regulation. Displacement was expanded to 2340 cc, though it was actually carburated. The FJ24 was installed in the NISSAN 240RS based on the US110 type Silvia. Originally, most of the production vehicles were left-hand-drive cars because, we assume, they didn't sell well in Japan. Among 200 total production number, 50 were right-hand drive (RHD), and 150 were left-hand drive, and obtained the Group B recognition of the WRC. 30 were used for the domestic rally championship in the WRC and each country from among the original 200. The number of sales in Japan is uncertain because there is no detailed record though a small number of people bought the original rally cars. Therefore, development was not done in consideration of domestic exhaust emissions regulations.
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