WE WANT TO KNOW IT ONCE FOR ALL: RBs VS JZs

[R33_GTS-t]

Originally Posted by tokes

If I could have had a MKIV I would, but the turbo MKIV's still are fetching 45+ thousand dollars here.

So I had to "settle" for a GTR, it's a pain in the ass to have to do oil pump/water pump/oil pan/cylinder head mods just to make it to 600 HP, and then worrying my ass off about breaking a transmission or front diff.

I'd love to have a 2JZ mated to an AWD Getrag V160 in a Skyline GTR body. Yum

I can appreciate that. I think the standard sequential setup on the 2JZ is fairly nice too.


Can anyone answer my question about whether RB26 heads flow better than 2JZ heads? Can a hybrid be made?

[GTRJack]

2JZ is cheap horsepower but what the heck I love the RB rev grunt

For the this is an equal match..

As for performance car though the Supra is no near Skyline

[vase]

Originally Posted by R33_GTS-t

I think the standard sequential setup on the 2JZ is fairly nice too.

I disagree - I just hate it! Many supras are well over 10 years old and there is a good chance that something is wrong with the sequential system. Always some vacuum hose is leaking or one VSV valve is broken or working badly. I feel that replacing the sequential twin turbo system with a single turbo is actually what Toyota engineers should have done years ago. I love the rb26dett twin turbo system though.

Engine wise supra is a very strong no question but it really is the whole package that matters. Supra is very fast on the freeway but it's just a Japanese corvette in my book. For me a GTR, however, is something else..something brutal and high revving - a true race bred winner.

But yes, the 2JZ seems to be stronger and easier to get big power out of.

[R33_GTS-t]

Originally Posted by vase

I disagree - I just hate it! Many supras are well over 10 years old and there is a good chance that something is wrong with the sequential system. Always some vacuum hose is leaking or one VSV valve is broken or working badly. I feel that replacing the sequential twin turbo system with a single turbo is actually what Toyota engineers should have done years ago. I love the rb26dett twin turbo system though.

So it's not so dissimilar to the GTR after all.

[gtrlux]

I found this

[R33_GTS-t]

Have a look here:

Supraforums.com

1000rwhp supras are a plenty.

[gtrlux]

Originally Posted by R33_GTS-t

Have a look here:

Supraforums.com

1000rwhp supras are a plenty.

LOL I clicked on the first thread on thier forum . .
Supraforums.com

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OK back to topic . . .

[R33_GTS-t]

Originally Posted by gtrlux

LOL I clicked on the first thread on thier forum . .
Supraforums.com

OK back to topic . . .

Yeah, they get a fair bit of that but the Dyno Tuning and Multimedia forums are pretty good.

[vase]

Originally Posted by R33_GTS-t

Have a look here:

Supraforums.com

1000rwhp supras are a plenty.

2JZ is clearly stronger and better for getting big power out of than RB26 that's for sure. And being rear wheel drive with a getrac transmission it also has the drivetrain to support those amazing power figures.

Not saying the 2JZ is better though.

[grahamc]

Well I own a supra 1994 6spd tt, running 450bhp (dyno graph from surrey rolling road)... power was achieved quite easily, cams (264/264 - no change to idle), hks fuel system (680cc injectors), big fmic, exhaust, , hybrid turbos link ecu to control it all. Link and fueling is overkill for the car, turbos are the weak point now. Perfectly set for a single conversion. All I need is the single kit, a remap and I get a 500 - 550bhp out of a GT35R turbo. No engine internals changed or gearbox changes.

My car has 156K kms on the clock and has just had a bottom end build done. However while speaking to the previous owner, it turns out that he has no clue about high powered cars as he thought you could just use normal oil and fuel. The engine build was only for the bottom end shells and the piston rings got replaced while they were out.

In the end, if the cars are maintained properly and looked after, they pretty close to bulletproof!!

Now the car pulls like a train. Very happy with it... However I am looking at th R34GTRs now...

I love the look of it, looks more modern (to me), I really like AWD cars, time for a change, however I might keep the supra for fun!!

[m92fs]

Stock, I would prefer a RB26DETT over a 2JZ-GTE because of the hi-rev capacity and the Twin-Turbo system set up differences; I find it more "comfortable" with the RB26DETT. Don't know with the other JZs, since I don't have much experience with them.

[supdawg79]

Surprisingly here in the U.S., more and more Supra's are being built for road racing than anything. A lot of the drag Supra's are being sold off or retired. We are really enjoying the benefits of a car that can hold it's own on any given day, when properly built, for a road course or time attack event.
I know most GT-R owners scoff at the comparison of Supras with their cars. I cannot deny that having AWD makes for a better platform for a road course, but Supras have really stepped it up as of late, and I'm pretty sure there are plenty of capable Supras ready for the challenge of driving on the same tracks as EVO's, GT-R's, or any AWD cars for that matter.
In Japan the love for Supras is nothing compared to what we have for them here. I have owned 5 Supras, and I was fortunate to end up in a 6-speed Turbo Hardtop, which is by far the most rare of them all here. The U.S. only received 326 Hardtop Twin Turbo Editions, all manual, between 93-95. I personally don't like the targa top models available here. I am driven by performance, not looks, so a hardtop was unquestionably the front runner for me.
I have seen, and been around, and driven quite a few GT-R's here in the U.S., and I'll be the first to say that the car is quite impressive. Quite so that I am going to be searching for one in the near future. Funny thing is that all the GT-R guys here either have owned a Supra at one time, or really respect the car. I'm glad the Skyline crowd is as humble as we are, and not a bunch of elitest that would otherwise taint a small community. I've gone out and cruised with the Skyline crowd many times, and they welcome me and any other Supra owner with open arms. Thanks!

Here's an example from last weekend:

[mambastu]

Originally Posted by R33_GTS-t

Can anyone answer my question about whether RB26 heads flow better than 2JZ heads? Can a hybrid be made?

Taken from SAU :

Rb26 (std) Inlet: 148cfm Ex: 105cfm

Rb25 (std) Inlet: 136cfm Ex: 98cfm


2JZ (std) Inlet: 139cfm Ex:121cfm

1JZ (std) Inlet: 134cfm Ex: 115cfm


Full thread is Rb Head Vs Jz Head - Skylines Australia

[kismetcapitan]

had I known about the frailties of the RB26DETT and the robustness of the 2JZ-GTE, I may very well have gone Supra instead of Skyline from the beginning. Single turbo kit, Power FC, wideband lambda and knock sensors...and then done???? The missus would have loved that. And I could be smoking my tires left and right. I had also considered the Lancer Evo.

But it came down to this. I'm an American. To us, the Skyline is the Forbidden Fruit. So were Evos, but now they're easily obtainable at any Mitsubishi dealership in the US. Not exotic anymore. When I went home a couple weeks ago, people treated me, just from HEARING that I owned a Skyline, as if I owned a Veyron. Well, a little different than that. All it takes is money to buy whatever other exotic - to us provincial Americans in the countryside, Skylines are forged from pure Unobtanium and make five thousand horsepower.

And haven't you noticed that, for all the huge builds people do, all that's done on the suspension is a set of coilovers? Skyline Handling is more than just talk, I presume. I know my car handles like a go-kart, despite being the weight and size of a prize porker.

I've actually considered picking up a Supra as a reliable daily driver for when the GT-R is broken. But I haven't given up on my goal of building a reliable 600-700bhp engine that will last me, trouble free, for five years.

If I had to go with the mundane, I rather fancy the new WRX STi, what with its flared fenders and hatchback. But I don't know about that boxer four, it creeps me out for some reason.

[m92fs]

Anyways, if anybody would want to drive a GT-R with RWD, they could buy a tourque splitter if they had the money.