Turbo Recommendation

[nismonyo]

Guys

I am looking at upgrading in a cost effective manner, I have an RB25det in my A31 cefiro with stock inj, 7psi boost, stock internals,XO2 turbo extractor manifold, 38mm Tial waste gate, T25 turbo, AEM wideband, 36psi on fuel pressure on idle and a GReddy E-manage Ultimate management.(which has not been tune)

I am looking at upgrading the turbo on this vehicle but i do not know what to get?

I use the car for drifting and probably to work and nothing else... since you guys are very Knowledgeable in the RB world i know that i would get some great advice.

because where i live everyone has some advice: and it get me even more confused because these things are very new to me, because when my car needs something done i take it to the mechanic.

i was advised on the following:

Garrett T3/T4

GT28rs aka disco potato

HKS GT 2530

Hks GT 3240

GReddy Td06 25G

Holset HX20

Garrett GT35R

Airresearch T3/T4

now i have a GReddy td06 25g at home but the shaft is broken so i don't know if to keep it and repair it or dump it

let me know your views.

[NYTSKY]

Firstly workout what you want from the engine.

Good responsive power

Or

Big power with some turbo lag.

For the RB25 i would recommend the GT3076. Can achieve high horsepower with nice response.

[bumble_bee]

well how much are willing to spend on just the turbo??

and how much power are u after?

[Fry_33]

You probably need a Z32 AFM and injectors and some form of boost crontroller (there's a few options) to pull some decent power out of the engine (say above 200rwkw). Make sure your fuel pump is in good condition too.

[clip14]

you have listed a huge variety in size of turbos

how much power do you want?

[RAZOR32]

You have listed a turbo like the HKS25/30 and Garrett GT35 you are talking about a very mild turbo to one that can make 380 rwkw, 500HP. What do you won’t to do with the car? Drift? Drag? Track? Or just street? Are you going to be fully building the motor and other parts? A good all round turbo for the RB25 is the Garrett GT3076r with .82 rear housing. But u need to explain what you what to do with the car and how much you wont to spend! As an Hks 25/30 set up will cost you a few thousand and a GT35 option could cost you a lot more

Edited March 14, 2009 by RAZOR32

[W3P3N]

You have listed a turbo like the HKS25/30 and Garrett GT35 you are talking about a very mild turbo to one that can make 380 rwkw, 500HP. What do you won’t to do with the car? Drift? Drag? Track? Or just street? Are you going to be fully building the motor and other parts? A good all round turbo for the RB25 is the Garrett GT3076r with .82 rear housing. But u need to explain what you what to do with the car and how much you wont to spend! As an Hks 25/30 set up will cost you a few thousand and a GT35 option could cost you a lot more

Does he not say in his 3rd paragraph he uses hes car for drifting and too drive to work!

[RAZOR32]

I missed the bit where you said Drift and street, as many would agree you can’t go past the Garrett GT3076r for all round turbo they make great power 320rwkw plus and still have good response. For a stock motor you wouldn’t really wont to run much more than 17-18psi some have can and do but it might last for a month or year you just don’t know with a stock motor.

[JonnoHR31]

i have a 3076 and had the car tuned today, on 17psi it made 250rwkw

[reNEGaDe88]

Well if u have a RB25DET and u want to drift, u would probably want good response and some power. If u get a 2530 or 2530 and make 300rwhp with a very linear power delivery. So a HKS 2535 or a GCG 2560R

[nismonyo]

As i said i use the car for drifting and occasional to drive to work.

what i am trying to achieve is basically this,

raise the boost and tweek the emanage with the stock system ( internal + Inj) that would not cause damages to the engine.

i do not even know how much boost the rb25det can even handle with a stock system.

I was told that the T25 can only handle 12psi before shattering...

BTW: the car also has a MAP sensor which i do not know what this is for?

with what i have does anyone have an idea as to how much HP i can achieve?

i would like to know how much HP i can get with stock internals?

i would like to go for a 500HP at the wheels.

[cactus]

500hp at the rears, are you serious? For your street car ...

Have you been in a car with 'just' 300hp at the rears? Even something like that is a handful. Go with one of the smaller turbos suggested, If you are already using the car for drift purposes as it is, any one of those turbo's suggested is going to make your day a little more fun.

500hp it insane ... and the lag to go with

Edited March 16, 2009 by cactus

[joeyjoejoejuniorshabadoo]

lol... i run 420hp @ the rears in my street car its NEVER on high boost... totally pointless

[joeyjoejoejuniorshabadoo]

stock injectors etc, get an r34 highflow... you'll get 230rwkw (300hp)

[xsv_32]

A mate of mine uses his car for the same, daily driving and the occasional sideways activities... He uses a 30/76 and makes some good figures without losing much down low..

[Pattygtst]

gt3076r is a winner

[nismonyo]

thanks for the info

[Sheng]

GT3076 or GT3037, with a smaller rear, like 0.62.

[R31Nismoid]

what i am trying to achieve is basically this,

raise the boost and tweek the emanage with the stock system ( internal + Inj) that would not cause damages to the engine.

i would like to go for a 500HP at the wheels.

Sorry, not a hope in the world.

Stock injectors are limited to around 250rwkw (350rwhp).

There is no chance stock Inj you'll make much more than that, and certainly not 500hp.

500hp would require full rebuilds, and basically a change of most parts to achieve, big dollars/time/effort.

[nismonyo]

so what can you get from a stock sys.