Unconventional idea for VL project, VS/VL hybrid

[Marco-EFIVL]

I've been toying with this idea over the summer and I wonder if anyone else here thought if it would be both reasonable and possible.

Get this:

Bottom end from VL motor (RB30) - (Larger capacity than other RB motors).
Head from RB26 - VVT, Twin Cam, Four Valves PC, great breathing characteristics, more power, more efficient.
Placed in a VR or VS body - I do a fair bit of driving and my current chassis/floor pan is rooted, so either way, I need a new shell. I like the shape of these two models, what are the mechanical pros and cons of the VR/VS range?

Later mods; Body kit, twin turbos, 18" Wheels with bigger brakes, after market lowered springs & shokies, short shifter, head work, forged pistons, after market cam, beefer injection pump and bigger fuel lines, better ignition leads and spark plugs, CAI and pod filter. Of course, I nearly forgot, a decked out sound system for my ride!


So, does this project have merit? What I'm thinking is getting a rolling body from the auctions, I've got the RB30 which I can/want to rebuild and my uncle has a 5 sp Nissan tranny from a 1999 R34 Skyline. Is RB26 head the best option? Most power? I'm guessing it will be more expensive? What is there availability?

Help is much appreciated, cheers!

[Wagon_Wheel]

Ummm..... well itd be different thats for sure lol

[R0d]

seen one in street commodore magazines with a guy who had this done to his vl. i think he was also running 16+psi of boost

[VLDavo]

ive seen an rb20 in a vs commie before so fitting an rb30 is possible

rb26de head is the best option
single turbo over the twin id go for.... beter in the long run and less to unblot when u have to fix ****

ive also seen an rb30det in a vn commodore

your project has merit as long as u go ahead with it

[vl rb30e]

i know of two hear in brisbane that have done that ones a vr or vs ute with a rb30 bottom end with a rb25 head with 411rwhp and that other one is a vs with rb25 in it cant remember hp but sound insane itsssss easy to do you just need a vl cross member

[Cheap6]

While we're brainstorming ideas, would a Nissan Patrol bottom end work with RB30/25/26 bits, particularly a 25 or 26 head? 4.2L, got to be good for off boost torque and getting onto boost faster.

[Gavin_LP]

Can the RB30E have a DOHC?

[14secvp]

People have been doing this for quite a few years put the twin turbo 2.5dett head on but with a single turbo the worst part of the whole conversion would be that the heads have no place for a dizzy because the skylines have a coil on top of each sparkplug and that cam angle sensor on the front of the head just need engine bay wiring probbably and an ecu out of a skyline these things can make over 1000hp with not to much work.Over here in nz it is hard to find the heads to do this conversion as lots of others have done it and they get bought up pretty quick.

[Marco-EFIVL]

Speaking of, would it be better doing the RB30 bottom end with the RB26 head thing or would it be better to get a complete RB26DETT imported and just stoke/bore it out? On that note, what is the maximum that both the RB26 and RB30 can have their respective capacities expanded to?

[VLDavo]

Speaking of, would it be better doing the RB30 bottom end with the RB26 head thing or would it be better to get a complete RB26DETT imported and just stoke/bore it out? On that note, what is the maximum that both the RB26 and RB30 can have their respective capacities expanded to?

unlless u have upwards of 30 thousend just to get a stroker kit done id stop thinking there and stick with the good old rb30

i think the first 1000hp skyline it was a blue godzilla.. he spent around 300,000 on it and i believe it cost him like 26 grand or somthing for hes rb26 stroker kit or some crazy amount of money

[walesy]

yeh theres is a vs wagon down here with an rb26dett in it...looks like a stock vs wagon with 17's... then pffftsh

[ear099]

unlless u have upwards of 30 thousend just to get a stroker kit done id stop thinking there and stick with the good old rb30

i think the first 1000hp skyline it was a blue godzilla.. he spent around 300,000 on it and i believe it cost him like 26 grand or somthing for hes rb26 stroker kit or some crazy amount of money

the stroker kit cost about 32,000 not installed and even then the largest that the car can be stroked out to is 3L

better off using the Rb30 bottom end and a RB25 head as it requires less modification. however look how man VLT are under the 10s mark and most of them are single cam so unless your looking for an insanely quick car i see no need for the dual cam

[Marco-EFIVL]

Why so much for a darn stroker kit for the RB26?

My old man has a Datsun 260Z (Which is now considered vintage, being 30+ years old). To get a stroker kit for the L26 Motor (Forefather of the RB engine series) cost little more than $700 USD and that is also with a set of 89mm forged pistons (Which are in turn bored out from the stock 84mm pistons). I can't understand why it would cost so bloody much.... Could the RB26 be bored out at all?

Speaking of displacement increases, can the RB30 be either bored or stroked out any more?

[rb26dett]

RB30 can not really be bored out anymore.

[AirStrike]

RB30 can not really be bored out anymore.

Then how do you rebuild them? Like all engines you could easily take 30-40 thou' outta it.
Please dont bastardise a VR/S tho!!! So many better options!! Why not turbo a 5.0lt?

[Marco-EFIVL]

How is that bastardising the VR/VS? Ut is just something unconventional and not every-day, as well, I've already got an RB30 ready to be rebuilt, so it is also convenient. I love the good old Aussie V8, however, I like my straight sixes, be they BMW or Nissan, which in my mind, are two of the finest straight six motors to grace the earth...

[rb26dett]

Then how do you rebuild them? Like all engines you could easily take 30-40 thou' outta it.
Please dont bastardise a VR/S tho!!! So many better options!! Why not turbo a 5.0lt?

Well I thought that they ment over 40 thou.

Should have made myself more clear.

[Marco-EFIVL]

Gah, I don't think I'll even be able to use my bottom-end, my crank and harmonic balancer are shot... :/


Still, I'm liking this idea, would it be better tho to leave it N/A? Or forced induction (Turbo)?

[walesy]

YAWN... vl turbos are done to death!

[rb26dett]

Haha, cant get enough of a good thing!

[walesy]

well you can when it becomes so popular its boring...i used to want a vl turbo when i was younger but then i saw the light and thought... why be like everone else?

[Marco-EFIVL]

YAWN... vl turbos are done to death!

Yes but an RB30 with RB25/26 head turbocharged and in a VS with a Skyline tranny? Is what I'm proposing THAT common lol?

Walsy, I'm guessing you've dropped a 5.0Ltr fuel injected in your ride?
So let's hear it guys, valid arguments between my RB30/36 DET idea to other V8 equivalents.

[walesy]

not ur idea isnt common... i know of like 3 and one of them is in my home town...i agree with airstrike... turbo 5.0...and yeh mines an efi5ltr

[Marco-EFIVL]

Turbo a 5ltr? Sh!T, that would put out some almighty grunt... My Uncle had a supercharged VS ute (5Ltr V8) that used to get wheelspin in 4th gear, so I guess the idea has merit. Only thing is I can't stand the idea of running a car with push-rods, I have this pet hate for push-rods. Still, these RB line of sixes have proven to be real power horses...

[pandaman]

Turbo a 5ltr? Sh!T, that would put out some almighty grunt... My Uncle had a supercharged VS ute (5Ltr V8) that used to get wheelspin in 4th gear, so I guess the idea has merit. Only thing is I can't stand the idea of running a car with push-rods, I have this pet hate for push-rods. Still, these RB line of sixes have proven to be real power horses...

Ahaha, I used to have this irrational hatred of pushrods. But when you think about it what's really wrong with them? Absolutely nothing, as a system it works just fine! There are a few fellas with turbo'd 5L's (and strokers) over on SC. And you're dead right, absolutely silly amounts of power to be had. Plenty of dosh required to do it right though. (As with any big HP motor) All in all it just comes down to personal preference, what do YOU want to do. Not what does everyone else think would be the ****, if you go looking for a consensus opinion on this sort of thing you'll never get anywhere. Just do what's gonna make you happy, because at the end of the day that's what it's gonna be for right?