96 Model R33 - Turbo with .63 exhaust housing?

[The Mafia]

Guys, I am looking to upgade my turbo. I've got these mods -

FMIC

Full Custom Exhaust (very good quality)

PowerFC

225 lph Fuel Pump

Stock BOV

Steel Turbo to Pod Pipe, Pod is Shielded

Standard AFM

Standard Motor, Turbo, and Manifold

Standard Injectors - and yes, I do know that I will need bigger injectors.

Car is making 210rwkw and 420 nm of torque. Goes very well. I've got a great tuner.

I want a 500hp Turbo to bolt straight onto the R33 manifold and dump, and want very little lag.

I was told a .63 exhaust housing will be good for that, but lacks top end if I am chasing 280rwkw plus.

I only want 250rwkw, but with lots of torque.

www.horsepowerinabox.com has this -

Garrett GT30 500hp ball bearing turbo

This is the smallest of the T3 style ball bearing turbo's that Garrett do. It has a T3 base flange and normally comes with a .82 external wastegated exhaust housing. As standard has a .70 compressor cover and Garrett dual ball bearing internals. Great for 2.5 and 3 litre 6 cyl road cars.

This unit can be supplied with a Nissan RB .63 Internally gated exhaust housing as a special order, providing a great bolt on upgrade... E-mail us about this. ** please allow 3-5 working days to manufacture**

Price:

$2,149.99

inc GST within Australia

http://www.horsepowerinabox.com/HPIAB2/cat...ategory12_1.htm

has anyone used something like this, and if so, can you tell me what kind of RPM it starts boost, and hits 1 bar? Was the car drivable (I would assume so)

Mainly I want something that comes on fast and hard.

Let me know your thoughts.

[Roy]

Specifically read inabox and bigcarls posts

http://www.skylinesaustralia.com/forums/sh...83&page=4&pp=25

LOL...search function is our friend:)

[Lithium]

Has anyone tried what HPIAB sell as a "GT28" or the Garrett GT25/40R turbo, or have any thoughts on them? I have been seriously thinking of getting one of those with a .86a/r turbine side with a T3 flange from ATP-Turbo in the US (US$1070) as it seems like a really good value for money (and not to mention cool looking) turbo which I figure would be good for my 250rwkw target with reasonable delivery.

[R31Nismoid]

this has been covered heaps as Troy posted

you'll need a .82 rear. And they are awesome

[Lithium]

Is that referred to me or the GT30 question? I've been searching on GT2540Rs and not been able to find anything

[BOOSTD]

.6 AR will make 250rwkw no worries. done it on only 15psi

[The Mafia]

.6 AR will make 250rwkw no worries. done it on only 15psi

thats what I want to hear. Thanks a heap!

[Cubes]

BOOSTD, That VG30 you played with.. What is the exhaust a/r on that?

[The Mafia]

I just spoke to the turbo dude in my home town here.

Says he can get me a GT30 for $1700 brand new, 500hp. Says if I get him a VG30 exhaust housing, he'll knock $500 off the price and put it on for me.

What size is a VG30? .63?

[BOOSTD]

BOOSTD, That VG30 you played with.. What is the exhaust a/r on that?

Vg30 : .63 A/R

RB20,25 : .48 A/R

[R31Nismoid]

Is that referred to me or the GT30 question?  I've been searching on GT2540Rs and not been able to find anything

i was walking about the guy who started the thread... not the hi-jacker :crazy:

a .63 will make 250rwkw... sure, i was refering to the GT30. 82 is the mix

BOOSTD can you slap your dyno graph up again or give a link cause i cant find it and wanna have a look at it.

[Lithium]

Sorry, my bad

[benno136163]

I just spoke to the turbo dude in my home town here.

Says he can get me a GT30 for $1700 brand new, 500hp. Says if I get him a VG30 exhaust housing, he'll knock $500 off the price and put it on for me.

What size is a VG30? .63?

what is the RWKW you can get out of a GT30 turbo???? i have a VG30 exhaust housing and would like his name.

[R31Nismoid]

what is the RWKW you can get out of a GT30 turbo???? i have a VG30 exhaust housing and would like his name.

depends which variant

[R33Dan]

just go big turb, s/s manifold high mount, xternal gate and screamer pipe thats what i did and what can i say but OMG.... its fun fun fun

[The Mafia]

guys, another good question.

Can the RB25 Hitachi Exhaust Housing be adapted to a Garret GT30 core, and if it can, can it be machined out to a .63 size?

What sizr do they machine it out to when they Hi-Flo them?

Shit, if I could get the Garret Compressor Housing, Core, and Exhaust turbine, whack on a HiFlo'd Hitachi Exhaust Housing, then I wouldn't need a dump or manifold.

If he machined out the Hatachi Exhaust manifold, I'd certainly get him to increase the internal waste gate hole.

Sound liek a good idea?

would that be a bad mismatch?

[The Mafia]

anyone got any ideas?

[Cubes]

It doesn't work like that.

When you machine a housing to suit you only machine out the hole for the exhaust wheel.

Do a bit of googling on the process of highflowing and or machining exhaust housings.

[The Mafia]

It doesn't work like that.

 

When you machine a housing to suit you only machine out the hole for the exhaust wheel.

 

Do a bit of googling on the process of highflowing and or machining exhaust housings.

I wonder if the .48 housing adapted to the GT30 is a bad idea..

Trying to make 250rwkw..