Rb26/30 + Mr Turbo S72 Gts Yay Or Nay?

[ISLIDE013]

Hey guys

About to purchase a motor and turbo setup.

Currently own a RB28 with almost unknown parts

Made 458kw on 22psi with a T04R.

Now was wanting to build a rb26/30 with a big turbo for street and to make big power.

I have found a motor and setup already built and was wondering other peoples opinions.

Its not cheap either but already done and built by a reputible shop that specialises in RB30 and RB in general.

I was unsure of the compression as its been left high on purpose

8:8:1 and it made 450rwkw on only 18psi with an auto behind it on pump fuel.

I am planning to run E85 anyway but can always change to thicker headgasket for less comp and more boost.

Apprently the head and plenum and exhuast side and turbo have all been matched to flow together.

Specs are as follows

Turbo:

Mr Turbo S72 GTS

800-1000hp rated

http://www.billetturbochargers.com/Billet_S72-GTS.ews

HEAD (supplied by 6boost)

- extensively ported

- 1mm oversized ferrea valves

- performance valve springs

- Tighe cams (274 intake, 278 exhaust, 11mm lift)

- Adjustable cam gears

- cometic head gasket

- rear oil drain in back of head returning to sump

BOTTOM END

- All the usual machining associated with a bottom end like this

- Argo rods and CP pistons

- 8.8:1 compression

- Ross harmonic balancer

- Jun oil pump

- oil restictors in block

- JPC sump

- half inch head and main studs

Im looking to make 500kw+ will the setup be right?

any help would be greatly apprecited

[ISLIDE013]

Anyone?

[N1GTR]

Cams are quite big.

Get a precision billet 6266, split rear 0.84, Ported S comp cover.

Run E85.

Too easy!

[NYTSKY]

Compression is perfect leave it. Combo sounds good.

[zebra]

As Dave said, combo sounds good

But a stout engine relies more on how it was put together rather than the sum of its parts

Providing it was screwed together well it looks the goods

[ISLIDE013]

I would put it past it.was built by the business that builds all engines for "JPC" reputable Rb tuners and so on.

What do you's think about the turbo? I have no knowledge of these Apprently they spool quick for what they are due to billet compressor.

And any examples of that precision being used?

I'm interested in the s72 just want to here some feedback on it before I buy it.its with the motor and what he made the power with.4000rpm it reached 18psi with an auto

[ISLIDE013]

Cams are quite big.

Get a precision billet 6266, split rear 0.84, Ported S comp cover.

Run E85.

Too easy!

I'll check em out

[ISLIDE013]

The thing is he ran a 10.0

Something felt wrong with it,

Was inspected at JPC and found the cooler pipe off the elbow of the turbo was coming off on boost,all of a sudden while it was on the dyno it started smoking and they found an injector failed and it melted a piston.

So it was pulled apart,inspected the bores and rebuilt the bottem end and it's still at the shop and he decided to sell it so basically I'll be buying a fresh engine.

[zebra]

Can't help with the billet turbo

Don't know anyone who uses one

Maybe give them a ring and ask about it,

My last dealings with them was good even though I didn't buy from them(I worked up the road from them upon a time)

They know their stuff and were happy to answer questions

[ISLIDE013]

Thanks guys.ill bite the bullet and buy it.just hoping it'll make the power I'm after.the owner rekons it was full boosting to 18psi at 4grand.