20B FC or FD vs skyline GTR-R34
 

which one would be faster. were having a little debate at work just wanted to know which one would be faster and better. putting the same amount of mods on both.....

Stock? The Skyline has all wheel drive, and 280bhp. The FD....US spec or J-Spec? Stock 20B, or built? Stocl for stock, my $$$ is on a R-34, unless the driver sucked.

Dunno about mod's, but there was a Japanese vehicle testing video floating around the net awhile back that showed the Nissan a bit faster in the 1/4 mile, but the RX-7 faster around the high speed test track.

I guess with equall modifications, the R-34 would still be faster. All things being equall (fuel, turbo, ECU, tires, etc..) there really is not any replacement for displacement. The RB26DETT is a 2.6L, the 20B is a 2.0L, and the FD is a 1.3L. You do the math....

a stock 20b with vs a stock skyline

Skyline all the way. All wheel drive, HICS, 280hp, race inspired suspension, 6-Speed gear box. All around ass kicker. Now, a 2001 RX-7 RS would beat a R-34 around a track though, but our less powerful US Spec FD would loose.

actually the skyline is not a very fast car, the power of a stock skyline is almost like a Supra or 3000gt.
I think a 20b FC or FD will kills a skyline easily!
I am having a vacation in HK now , I saw a skyline GTT race with a LAN EVO7 , the EVO7 is way faster than the GTT....(I have record it into my camcorder, I will upload it when I back to US)

Also, the GTT is single turbo, but who is counting??;)
What is the stock hp on a 20B? And I have a Top Gear video of a R-34 Skyline racing a McLaren F1....it is NOT a slow car. Know of many cars in the world that can pull a $1.2 Million car off the line??? Didn't think so. The Skyline is the fastest stock car built in Japan in a straight line, hands down. Ever hear of 1300hp RX-7's? No. Lots of 1000hp+ Skyline GTR's runnin around that little island...

Edit:Yes, the Supra RZ and GTO make the same hp, but last time I checked, the Supra was FR, and the GTO was a piece of Toyota crap!!;)

Are u guys serious..If u ever need a reference go watch the NHRA import drags...Even in the street class last drags thier were 7 rx7s that won and only one skyline that came close..to even qualifying..Mod for Mod the 7 is faster in ever way...The skyline is like a VR4. Just because its a skyline does not mean its the fastes car in the world. Its just a skyline and they get like mid 13s stock...a third gen can get high 13s and a 20b I would imagine would kick its fucking ass.

20B did not come stock in neither the FC3S or FD3S...
This discussion is a waste of time, as why are you comparing engine swaps versus a stock vehicle?
Those RB26DETT's can be modded to over 1200hp (Veil Side Evolution III).&nbsp The 20B has barely seen over 1,000hp (several drag 20B's).&nbsp The complex AWD will smoke the RWD car in almost every performance category.&nbsp With power levels like this, the chassis weight becomes a non-issue.

Reliably (i.e. streetable) power between the RB26 and the 20B is about 600-800hp.&nbsp The cutting-edge technology of the R34 makes the performance edge moot - the Skyline GT-R R34 wins hands down.


-Ted

I think the RX7 RZ holds the record lap time at Tsukuba for stock cars. Im not sure on that one but RX7s are definetly dominating in the in the most recent Tsukuba challenge, with the Axia RX7 edging out the Cyber Evo for quickest time.

A Mazda RX-7 & a Nissan Skyline are two wives I wold never pick over one another. I love them both & I think you should equally upgrade them both. FYI, I don't know much about them but if you know what you are doing to your car.

would make for one hell of an afternoon of testing and racing to find out which was quicker ;) even if this is really pointless :D

Alright, to start off this argument, the R-34 GT-R mind you, would smoke the stock 20b and FD plain out. And no it wouldn't matter on drivers; put any dumbass that can shift in a R-34 and you can just rev it past redline, dump the clutch and the ETTESA system takes over and disperses the power to the wheels. ANd really how hard is it to drive strait. And finally last weekend I got to ride in one and when someone says they are fast, they mean they're FAST!!!!:eek: Anyway, my money would be on the R-34, now seriously the real competition is stock for stock, the R-34 and Lan Evo VII. Yes, don't flame me the Evo VII's suck compared to the the III and IV but ow well. Take your pick, that is where the competition is. Damn I wish we America would kick itself in the ass and allow some of these companies to bring these crazy ass cars over here. I would love to own a Lan Evo III and bye the looks of it I might in a couple of months:D ....hehehe MY SECRET!!

The 20B is a 4.0L, and the FD is a 2.6L if you want to compare them to a 4-stroke piston engine. Yes, there are many other replacements for displacement: redline, thermal efficiency, and volumetric efficiency, just to name some off the top of my head.

How do you get 2.6L from a 13B?

1308cc is from the standard definition of an engine's volume (full sweep of one piston/chamber times no of cylinders/rotors). But the rotary does this twice as often, meaning it theorectically draws the same amount of air as a 2616cc piston engine. In reality it doesn't, which is why the rotary "equivalence" factor for racing is often 1.8 instead of 2.

Any man who would say such a thing doesn't deserve a rex :D

Notice what he said: "Putting the same amount of mods on both..." If you do not beleive that 2 equally tuned engines are set side by side on engine dyno's, and one ha bigger displacemnet than the other, then the bigger one will have higher numbers.....YOU do not deserve to work on cars. Simple physics. Yes, a well tued 20B versus a stock RB26DETT would win. A equally tuned RB would win. The Skyline is also set up weight wise for that engine, the FC is designed for a 300lb 13BT, not a heavier 20B. This can be overcome by a skilled driver. But stock for stock, a 280hp All Wheel Drive R-34 GTR would dominate. The R-34 has the fastest stock lap at Tsukuba...I have the video if anyone would like to argue with me.....

So thats "theorically"!

Just in case you wanted to know...
Australian Motor mag recently put an stock R34 GT-R N1 (factory grunty version) on a chassis dyno where it put 215kW (288hp) to the wheels, making a complete mockery of the brochure's 206kW (276hp) flywheel power figure! With a 30% drivetrain loss (Aussie dyno remember) that's about 307kw (412hp)!

This is a stupid comparison if I have ever seen one. First let me say that Skylines aren't as fast or nimble as everyone would lead you to believe. About a month ago on the Chuo Expressway going around C1 some punk ass in is Blue R34 started to race me............hahahaha. (i love it when that happens) My 13B with a High Flow turbine stomped his ass sooooooo hard. And the funny thing he kept trying and when it came to the curves I had to slow down 3 times just to let him catch up. Had I had a 20b.......OH GOD well if I didn't crash trying to control the beast ...... well no doubt it would have been awesome.

I realize some of this is driver, but They just aren't that fast!! All of you have seen some video of a R34 racing something first the japanese don't put a complete stock car in a video very often. Even if they say its stock it probably isn't. Nissan in my opinion makes some of the weakest parts for their cars and they tune 0 overhead into their engines...which means hard to make power without mad fuel and strength upgrades, especially in the skyline cars.

The RB20, 25 and 26 all have the same block(piece of shit) the only difference in the engines are the heads and the stroke with the RB25 undoubtedly having the best head. Yes a lot of people have spent their life savings making 1000hp GT-Rs but does that mean that the GT-R is superior-not at all. Scoot motorsports built a 712hp 13B and is now building his own four rotor edition. Imagine a 1400hp FD!! 20B engines are not as plentiful as RB26's and that is why you don't see them everyday, the other problem for 20b is engine management. Since the engine is only produced in a Cosmo you almost have to go custom to get it running.

A GT-R is a car that anybody can build but a FC3S with a 20b is not so this is really a unrealistic converstation. Without a doubt a 20b in a FC would kill any GT-R.

But, a 20B FC is not a stock car. He is asking with similar mods. So, $10k for the full 20B swap in a FC, add that to a R-34, and you say a 20B would win???

I didn't realize this was about money, but that just reinforces that this is a endless conversation. The original posts said with equal modifications not about the cost of building a 20B FC. If you were to include the cost of building the base car then you would also have to include the price of the GT-R which nissan had to build, about 30,000$. So I still think that a 20B FC is in the lead.

Ok, ok, you live there, and have more experience than me, but I am still warry about a stock 20B beating a stock R-34.