The Nissan FJ20 engine series is highly revered in Japan among car entheusiasts and gained notoriety during the 1980's in Australian, New Zealand and throughout the world of motorsport with the Gibson Motorsport FJ20ET DR30 Skyline Group A Touring cars,  S12 FJ20E (Gazelle) Silvia,
.and the FJ24 BS110 Nissan 240RS Group B World Rally Cars. 
The FJ20 was  Nissans flagship performance production engine in the 1980's and was developed and born in the famous "OGIKUBO" factory in TOKYO. With technologically advanced features like  the world's first sequential fuel injection, double overhead cams, 4 valves per cylinder, double chain valve driving and bullet proof internals, the FJ20 was Nissan's Golden Child.

-Gibson Motorsports FJ20ET DR30 Skyline Engine Bay.

-The FJ24 powered Nissan 240RS Group B World Rally Car.

-Pauls DR30 Skyline
Nissan created the FJ20 engine to adapt it on the 5th Generation GC210 SKYLINE( 1977-1981)
Two different grades of the GC210 Nissan SKYLINE was sold in Japan.
The "GT" version came powered by the L20 straight-six engine and was the most popular Sports/Grand Tourer in JAPAN at the time in the late 1970's.
The other version sold was "TI" (Touring International). This grade had a shorter wheel-base than the GT. And had a reputation as an excellent handler. But the engine was lacklustre 1800cc SOHC Naturally Aspirated 4-cylinder.

-DR30 Nissan Skyline
NISSAN's original plan was to upgrade the GC210 Skyline "TI" to high performance specs by fitting the newly developed 150ps FJ20E 2.0L DOHC 16 valve 4 cylinder engine.
But Nissan decided to wait until they developed the 6th generation R30 series Skyline's to utilise the high performance FJ20 engine exclusively. 
In October of 1981 the FJ20E powered DR30 Skyline RS2000 hit the Japanese domestic market and was an instant automotive success. And Hi-po 190ps FJ20ET Turbocharged DR30's soon followed in 1983.
The DR30  was also to use Nissans "ATTESA E-TS"(electoronic 4-wheel torque distributing system)  But in NISSAN the development was very slow , so the "ATTESA E-TS" system wasn't ready in time for the DR30 Skyline.
But years later "ATTESA E-TS" appeared in 1989 ,adopting it to the famous (Godzilla) Skyline R32 GT-R & GTS-4.
George Fury's no.30 Group A DR30 Skyline Touring Car
-Above: George Fury's Gibson Motorsports DR30
-Right: S12 Silvia (Gazelle) Rally Car
Nissan then felt that it would not be cost effective to fit the FJ20 engine only to Skyline models. 
So they had to modify the FJ20E and FJ20ET to fit in the engine bays of S110 Silvias and S12 Silvias(also known as Gazelle's).
Engine Bay room in the Silvia was initially a problem. The basic compornents and mechanism were kept the same, but in the  S110/S12 Silvia/Gazelle the shape of intake/exhaust manifold was made different. So FJ20E/FJ20ET S110/S12 Silvia/Gazelle's had slightly less power and torque than the FJ20 engines fitted in the DR30 SKYLINE's due to the inclusion of their restrictive new manifold. 

Mr. Shin-ichiro Sakurai , 
known as "The father of the SKYLINE" recalled that...

 "We made the FJ20 for only the DR30 SKYLINE. But NISSAN couldn't permit to put the engine on only SKYLINE , the reason why it was very high cost. Then , we couldn't help using FJ20 to S110/S12. But the space of engine-room is different DR30 and S110/S12. So , we re-make intake/exhaust manifold for S110/S12. It's not original shape. These manifold can't get the power & torque of the DR30's FJ20"

FJ20E & FJ20ET (Turbo) engine swaps have gained popularity, not without good reason. The factory power output claim of the Nissan FJ20 turbo of around 200Hp is still impressive today and many of the Group A Touring cars were  putting out well over 400+ Horsepower from the 2-litre Nissan turbocharged engine using early '80s technology.
Today FJ20's can be found in numerous auto entheusiasts cars throughout the world. Everything from modified Datsun 1600's(510's), Holden Gemini's, Datsun Roadsters and Toyota Corolla's to 500+ HP Austin Sprite Drag cars.
Nissan FJ20 is a performance benchmark in Japanese automotive history and one of Japan's greatest high performace production engines.
DR30 Skyline
S12 Gazelle/Silvia
S110 FJ24 powered 240RS
Engine Specs
Feature Cars
Go to Main Page
This site is created by Turbo Creations  -M Drach 2000/2005.

Information for the above article has been researched from many sources including,Nissan Motorsports, Nissan Motors Japan, Australian Touring Cars, Option2 magzine, Nissan related websites, World Ralllying and thanks to the many readers and contributers.
We welcome any reader input for the above information and are always updating the site.-Regards Webmaster.