Nissan FJ engine
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(UTC)
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 L for general production models when the 240RS could no longer race. The 2.0 L variant was used in the Nissan Silvia/Nissan GazelleS12RSX, and DR30 Nissan Skyline. The 2.4 L variant was used in the S110 Nissan 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. 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 emission(cc) | 1990 | ← | ← | 2340 |
| Inside diameter×distance(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 an version of the FJ24 with 275 ps
[edit] FJ20E
Distinguished by the "E" for "Electronic Fuel Injection". Maximum output 150 PS (110 kW).
Installed in DR30 Skylines and type Silvia of the first S110/S12/Gazelles.
[edit] FJ20ET
"T" denotes turbocharged engine. The model came with a maximum output of 190 PS (140 kW) (it is 185 PS [136 kW] in the S12) and the intercooled versions produced 205 PS (151 kW). Boost pressure to achieve this power output was only 6-7 psi.
It was installed in the DR30 Skyline RS and RS-X and S12 Silvia RS-X or Gazelle, the RS-X versions of the DR30 being 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 produced slightly less torque and power compared with the Skyline. 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 RSX in the world, a 2600 lb vehicle which runs 9.12 @ 153 mph over the standing 400 m.
[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 2340cc, 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.
[edit] Trivia
- Currently, the fastest 4-cylinder in Australia is powered by a built FJ20.
- Adam Carolla of "The Man Show" has had a rare-new-FJ20 installed in a Datsun 510.
- Other Datsun enthusiasts like to swap them into L or Z series powered vehicles. The FJ has similar mounting points to L/Z/KA blocks.
- Weighs 366 lb (166 kg); the KA24DE weighs 394 lb (179 kg).
po:Nissan FJ engine
