Is The RB 26 DETT a very good Engine ??

[topgear]

gangstarr,


4G63:is from the Mitsubishi lancer evo 1-7 road and rally car(although evo4,5,6 & 7 are different because the gearbox is now at the passenger side compared to the evo1,2,3,galant VR4,and eclipse)...passenger side as in left hand side.Currently fastest 4 cylinder 4x4 in the 1/4 mile run(8.8secs)

SR20DET:is from the Nissan Bluebird SSS,Nissan Sylvia S13,S14,S15 200SX,Pulsar GTiR.JUNauto made a drag 200SX(RWD) which ran an 8.8secs in the 1/4 mile run.

3S-GTE:is from the Toyota Celica All-trac,version ST-165,185,205 and 215(toyota caldina).Used the the World Rally Championship with great success.HKS made a drag celica FWD doing 9secs in 1998(?)first to reach the 9s.

H22A:is from the Honda Prelude,Accord SiR(japan only).Never used in motorsport(pls correct me)but used to great effect when it comes to drag racing,first to reach the 8sec..

EJ20T:is from the subaru impreza WRX,as used in the World rally championship.Lots of tuning parts from australia..i dare to say australia has LOTS of fast scoobys around.Australia currently holds the world record for the quickest subaru in the world(10.03secs@143mph without NOS but @ 35psi or more)


theres another engine which i forgot to mention.Its the cosworth engines from Ford.It is one of the most successful touring car engine around.very strong bottom end(In the 1992 bathurst 1000 race, they ran something like 60psi(!)for the qualifying...and i actually saw the boost level during the endurance race through the telemetry from a video...2.8-3 bar!)


care to name others?


please correct me if there's any mistake somewhere.



Cheers

[matlowth]

Topgear,

I think the MKIV supra motor is substantially stronger than the GTR motor.

I can't count any stock bottom ended GTR's motors running 9's with terminal speeds in excess of 150mph!

It's still got the standard h-pattern gearbox too!

http://www.turboimports.com

I've got a video of it doing it's run somewhere on my pc too.

matt

[MarioGTR]

Bullshit.

The 2JZ is a very good motor, yes. But it's bottom end is not as good as the RB26's.

It has the same problem that the RB30's have (infact, it is identical in bore and stroke to the RB30) in that the stroke is too long and puts way too much side loading on the pistons and also has too great a velocity on the rotating assemblies and thus can't rev high nor hard.

If you destroked the 2JZ to something between the 1JZ (~2500cc) and the 2JZ (~3000cc) to around 2600-2700cc, you'd have a much better motor - but then the problem becomes the heads themselves and their nowhere near as refined as the RB26's.

Both motors, if built up to the max, will be able to provide huge power and be reliable, yes. But the RB26 wins out as it comes with most of the modifications required for big sustained HP (oil and water pumps and flow galleries for one example) stock.

I have several RB26's and 2JZ's. Some of them even make respectable power levels - so I'm not talking out of my ass like some people.

Mario.

[GTS-4 Ben]

Amen Mario!

RB26 is an amazing engine.

[matlowth]

Why bullshit? There are enough stock motor'd supra's running well in to the 10's to back what I'm saying.

Are we talking standard here, or in a worked capacity?

I would have thought the supra would have been able to sustain a higher power figure purely due to its increased capacity over a RB26.

LOL - from what I can see, that's where you do most of your talking!

matt

[MarioGTR]

Show me even 5 of these Supra's running supposedly in the 10's with stock engines then.

Where is your proof?

Your thinking that cubic capacity is all that is required shows you haven't got a fucking clue as to what your talking about.

New board, a new lot of total morons to deal with.

Mario.

[gang$tarr]

The Supra is known to have one of the strongest stock engines available, those engines can take a hell of alotta power.

I have no doubt that it is stronger than the GTR engine.... but the GTR is still better IMO

[[TWUBLE]]

Originally posted by brendonm
I read an article sometime back on the 300ZX NZ Club website how there was this race between a GTR and a 300ZX and there was'nt a lot in it. Actually hold on, that was you aye Kai hee hee hee... Man that made for some great reading...

In terms of engine capability the 2.6 litre twin turbo does well for itself considering the relative displacement difference. One would think that in theory the extra capacity should see the VG series engine eat the RB, but the RB26DETT does quite well for itself considering the numbers. I think that this says a lot for the RB series of engine.

The VG30DETT series are an excellent engine, 3 litre V6 twin turbo.
The RB26DETT series are an excellent engine, 2.6 litre in-line 6 twin turbo.
A comparison does'nt really make sense unless you are comparing an out of the box block, as every engine is in such varied states of tune. I have only heard good things about them both really.
Usually the bad stories come from things like idiots winding up huge amounts of boost without addressing the issue of containing it all. I know one guy (Monty) with an R33 GTR who dialled up 26 pounds, with nothing else done to the engine except for airfilters and he was suprised to blow his turbos. What suprised me is that he was 'suprised'

I agree with both votes that the RB and VG series engines are a good strong engine. I reckon that common sense tuning through research and incremental testing (not overloading during testing) is key in making the engine what it is, and producing an effective state of tune.
(Although in saying that same engines just seem possessed - like Kai's! although that tapu totara must've helped)

damn... you seriously know what your talking about!
I agree... they BOTH are good engines for what they are... you cant really compare the two against each other as they are different types of engines!... why doesnt someone compare apples with apples!

[zapf]

Originally posted by topgear


Im not sure bout the RB25DET though...


ur pick? [/b]

Well FYI, I currently have a Stock RB-25DET that is pushing approx 400hp at the flywheels. So wait till something breaks!

Zapf

[GTS-4 Ben]

I can't believe the idiots arguing with Mario..

The only country that mods the Supra so much is America simply because they cant get the GTR..

In Japan and New Zealand there is probably twice as many fast GTR's than Supra's. I know in my small town of Christchurch there are several damn quick GTR's, and I don't think there is one Supra that comes close to even breaking 13's... even though the cars are evenly matched price wise..

GTR is king..

[matlowth]

MarioGTR,

I'm not going to waste a half an hour looking up supras doing these times. Go to MKIV.com and have a look for yourself.

Did you hear me say that cubic capacity was all there was to do with it? Talk about taking people out of context. I said that would help!

My current car is a skyline (33 gts with 206rwkw - not fast by your standards, but for now I'm happy with it), my next car will be a skyline (r34 gtr), but believing that it's the best bar none is just naiive.

How about you grow up and act your age! Anyone would think you were 13 with the attitude you have!! Fuck man, we're all here for the same reason - because we love skylines.

BTW - I've been on SDU for over a year.

GTS4,

Man you are a zealot aren't you! Did you see me once put down the GTR? FYI - The american supra has better turbos (with steel wheels), bigger injectors and different camshafts... The jap spec supra's are slow because they don't have these same mods, and they've got the crappy ceramic exhaust wheel on em.

matt

[matlowth]

MarioGTR,

D'oh - Looking @ my last post - I can see how you've taken me out of context about the engine capacity!

Made sense when I wrote it, but looking at it now, I can see how it's come off...

The capacity definitely helps it make those big numbers tho.

matt

[topgear]

MarioGTR,

i have to agree on you about the 2JZ's high piston acceleration/velocity due to the long stroke design of the crank...

but i was wondering what about the OS giken's 3.0 long rod RB26 kit?what are the advantages of long rod?I know it requires a spacer on the deck of the block

btw,since the 2JZ and RB26 share the same bore diameter,do they have the same valve diameter on the inlet and exhaust?

does the 2JZ share the same valve diameter with the 3S-GTE?



zapf,sounds like another strong motor from the RB series.

[SpeedAddict]

I am not getting into the whole RB26 vs. 2JZ discussion considering the fact that I have zero experience working on a Skyline.
However, to dramatically increase the horsepower figures for the Supra, all that is basically required is to increase it's airflow capabilities and the ignition system. Our race car is an internally stock motor with a T-78 single turbo. We are constantly running 1.4 bar of boost. This has been good for a 10.6 @ 135 mph.

[GTS-4 Ben]

Originally posted by SpeedAddict

increase it's airflow capabilities and the ignition system.

So you are trying to tell me running 1.4bar on a T-78 with standard internals.. how long is it expected to last?

but saying that, I have seen GTR's with ceramic turbo's replaced with Steel wheels, exaust, filter, clutch and a good amount of boost run low 11's...