whats so great about the fj20?
its a turbo 1990cc DOHC 16 valve four cylinder… thats about all i know
i havnt done any research, but i figure the fj20 fans will chime in here and let me know…
MAtt???
from what i remember, the fj20 was developed as a full blown racing motor…they scrapped the program. punched out the displacement .2L and thru it into productions cars
Mr200 will know better.
which matt did you mean? there are like 500 of us apaprently.
lol wouldnt you like to know…
not really, just stating a fact…i know you love me avery.
I want this BAD 300WHP and 2000lbs
I guess each red X ammounts to 100 hp…
sweet
Built FJ in a 510 is my goal in life
and for more info
I am looking for one.
I saw that ebay one already, but it doens’t look too good
apparently they can take lots of abuse
now… if I can only find the fj24 :twisted:
interesting, its called the FJ20ET however its dual overhead cam
i guess this was before nissan started designating “D” For dual over head cam?
Yup, that site posted above also has lots of great info on the engine although I don’t think it’s updated often.
FJ20 was built for F1 originally, F1 changed spec in the early-mid 80’s and the enigne ended up in a few cars in both turbo and non turbo form… closest one to ‘home’ is the 88’ option engine in the S12, in Europe.
The enigne it’s self is very similar in terms of HOW it’s built to the Cosworth black or gold top ( pre emerald top )… it will TAKE TONNES of boost WITH the right heads on it. In austrailia if you take a look at some back issues of Zoom they routinely put 30psi through these engines with td05/to4e sized turbos. For the money you cannot beat a FJ20 , the only other Nissan 4 banger I would take would be the Ca18DET , the SR is even older tech then the FJ, the SR was/is damn stupid cheap for them to make.
IF you have a chance to get a real FJ20det then grab it, it’s as close to a real ‘race’ engine as your going to get unless you do by said YBT cossie engine… if you don’t want it then let me know where it is and I’ll buy it and covet it… and I’m a rotorhead.
I think West-D has some tech and performance links on this… I know max and I were shooting this engine back and forth awhile back…
^^^^
No, that’s hopeful internet mumbo jumbo. The FJ was never designed for Formula competition.
The FJ was built to bring respect back to the GTR nameplate.
Long story short, GTRs used to be the fastest things around. Some guy at Nissan said “The people don’t want fast, they want plush”
GTRs turned into four doors that were slow, but very comfy.
All the other reindeer (Toyota and Honda) started winning on race tracks again, where the GTR used to dominate.
Someone at Nissan said “We can’t have this … we must revive the GTR nameplate.”
So they built the FJ20 … NA. They started selling it in R30 Skylines. Someone just “happened” to notice the FJ was a ridiculously stout engine, decided to rework it for turbo, and the FJ20ET was born.
205hp at 6,400rpm, 188 lb-ft 4,200, large bore, short stroke
Why is it such a good motor? Well, it’s very very strong. Has a very very very strong bottom end, double roller timing chain, massive, massive cylinder heads (you can almost fit your fist in an intake port LOL) high duration cams, good valvetrain design, came with a T3 turbo, etc etc.
Stock they’re good to ~230 whp. Very archaic Bosch ECU really holds them back. Injectors/standalone … closer to 300. Turbo … sky’s the limit.
Go find Ben Diggles, my hero. He’s got the fastest stock bodied Silvia in the world, and it’s FJ powered. Very simple build, ~600hp, runs 9s.
So yeah, the real advantage of the FJ is the fact that it’s bulletproof and moves a lot of air and revs to the sky (7,500 rpm stock limiter).
Downsides; low production numbers, the motor is huge for a 2.0, weighs 400lbs, noisy, spare parts are non-existant on this side of the ocean. One company in Australia still has hard parts (rings, bearings, etc) and gasket kits, but they’re $$$$$$$$$$.
The FJ24 on the other hand, is a Group B rally engine, never available for street duty, but a few have slipped through. They are around if your pockets are deep enough.
277hp/264 lb-ft of torque out of an 11:1 twin carb 2.4 NA 4-cylinder. And that’s 277hp at 8,000rpm lord knows where the rev limit is.
"No, that’s hopeful internet mumbo jumbo. The FJ was never designed for Formula competition. "
then perhaps you’d care to contact ZOOM and High Performance Imports magazines in Aussie., with all your years of knowledge, and tell them that thier many articles are wrong…
"Someone at Nissan said “We can’t have this … we must revive the GTR nameplate.”
So they built the FJ20 … NA. They started selling it in R30 Skylines. "
mr. wizard… no such thing as a GTR30… it’s a DR30… period.
HAHAHA… GT, what does that reeeeeally stand for?! (note sarcastic tone).
Remember boys and girls that Magazines and the Web isn’t gospel… I have read Zoom and Drift Battle (both Aussie) and in one issue it states that the CA18DET made its debut in 88 in the S13 Silvia/180SX… Yet these engines are in 87 MKII RSX S12’s… So who’s right?!
The RSX S12 pre MKII had the (pause for effect…) FJ20.
I know where there are a few FJ20 NA’s, and a rebuilt ready to rock FJ24, and a “in pieces” FJ24… Oh and a FJ20ET too. 
Good luck finding a tranny, or anything else for that matter.
I have heard that the RB20 transmission bolts up to the FJ20. With a few other small things, this engine can be bolted into the S13.
Right off ‘FJ20.com’
"There is much mystery surounding Nissans initial reason for creating the FJ20 engine. “One common Rumour is that the Nissan FJ20 engine was designed back in the Formula One turbocharging days. Wanting a bulletproof competetive engine, Nissan Motorsport built a 1.5-litre, twin cam, 16-valve four cylinder- and called it the FJ15. For various reasons - including the impending ban on turbos, Nissan pulled the pin on the program and was left with a lot of research and development into an engine which it couldn’t use. Nissan decided to detune the FJ15, open out capacity to 2-litres, offer it with or without a turbo and fit it to mid-80’s Japanese semi-sport luxury cars.” Including the S12 Gazelles (Silvias) and Japanese-market DR30 Skylines in the early '80s. "
as for the CA18… they are talking about an ‘AUS. perspective’ on the intro into IT"S market place…
GT grand touring… since the Skyline is one, a '‘Touring’ car in the same family as the 928, Supra MkIII, 850i… generally high power cruisers meant more for autoban and wangan then road and street track.
however the ‘GTR’ name on the GTR is a very specific moniker… like ‘SS’ or ‘GTO’ … the skyline 30 and 31 did not include a ‘GTR’ version…
Yes yes… Tekemon (Iron Mask) and RSX… Well done Mr Bond!
So they were developing it for Formula, but never actually campained it… So then, who’s right???
This is turning into the typical Inter-Web type of run on blah blah blah blah blah blah
FJ!!! Gooood!!! Parts rare!!! Arrrggg!!!
Heh, hence “popular rumor”
you missed the next part where it says
FACT: Nissan created the FJ20 engine to adapt it on the 5th Generation GC210 SKYLINE( 1977-1981).
Two different grades of the GC210 Nissan SKYLINE were 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.
With the CA18S :roll:
There was no “GTR” for the R30 or the R31, but the concept was still the same. The Skyline needed to regain its status.
The restriction on turbos was not until 1987 when they cut the max boost from 4.0 BAR to 2.0 BAR. They were dropped in favor of the unrestricted 3.5
1977 Was the first year Renault brought a turbocharged engine into competition, so Nissan would have been building this motor right smack in the time it would have been a la mode to campaign it.
Nissan also never campaigned the FJ even when it needed it. The FJ24 was used in rally for a short time period (FJ20ET was never homologated for some reason) but the GT cars all used L series motors. The GT S110/S12 NIHON car (240RS probably has pics) used a turbo L20 and made plenty of power with it too.
According to Nissan, the FJ was designed just for Skylines, nothing else. Since it wasn’t turbocharged until a year into production, it’s highly unlikely it was ever intended for competition.
^ makes abosolutely no point with this cut and paste without some form of editorial… and since I read that whole page i don’t think I missed it… I puleed out the information that was pertanent to my point… what was your point with the above? to show that you can use the ‘Ctrl C’-‘Ctrl V’ key strokes with wild abondon???
uhmm … does my natural musk somehow inflame you?
You cut and paste directly from that page, and left out the part that says what is known to be a fact.
So I pasted it in.
The bit about Formula one was not pasted, I just felt worth adding.
Maybe if I reiterate my point by gasp Control-V-ing my own editorial
There was no “GTR” for the R30 or the R31, but the concept was still the same. The Skyline needed to regain its status.
The restriction on turbos was not until 1987 when they cut the max boost from 4.0 BAR to 2.0 BAR. They were dropped in favor of the unrestricted 3.5
1977 Was the first year Renault brought a turbocharged engine into competition, so Nissan would have been building this motor right smack in the time it would have been a la mode to campaign it.
Nissan also never campaigned the FJ even when it needed it. The FJ24 was used in rally for a short time period (FJ20ET was never homologated for some reason) but the GT cars all used L series motors. The GT S110/S12 NIHON car (240RS probably has pics) used a turbo L20 and made plenty of power with it too.
According to Nissan, the FJ was designed just for Skylines, nothing else. Since it wasn’t turbocharged until a year into production, it’s highly unlikely it was ever intended for competition.