What Turbo?

[zac320]

I have a Nissan GQ rb25/30 it's been rebuilt only with cast pistons and standard rods. I am chasing a new turbo so I can get some power from this motor. Also what injectors should I look at? The ones on there heaps of the plastic tips on the end of the injector have snapped off.

[KiwiRS4T]

Have a read of the RB30 turbo results thread and see what people make with the different turbos.

If you already have an RB25 turbo you could consider getting it rebuilt by Hypergear, or you could get a GT3076 or read the Precision thread.

[zac320]

I just thought because its a 4wd it will be a whole different ball game. I have a stock turbo but I've heard the ceramic wheels are break past 14psi. The motors been fully rebuilt and I'm aiming for reliability as well as power. I plan on keeping the car

[mattie4270]

E85

[KiwiRS4T]

I just thought because its a 4wd it will be a whole different ball game. I have a stock turbo but I've heard the ceramic wheels are break past 14psi. The motors been fully rebuilt and I'm aiming for reliability as well as power. I plan on keeping the car

If Hypergear rebuild the stock turbo I presume (you can check) that they will use all steel wheels. If you want a brand new turbo the GT3076 would suit for 250 - 300kw.

There are a few sidemount injectors you could get -about 500-600 should do you. I have Deatschwerks 550 on mine.

[vh45tt]

kkr430 more than enough on a relatively stock bottom end. 164 volvo injectors bolt straight in and flow 600cc.

[zac320]

E85 isn't in my area. Also what's a good ecu to get? It will need to pass emissions so a Nistune and that is out of the question. I have a budget of $4000 for ecu and turbo

[zac320]

Keeping in mind id rather spend less. Car still has to be registered so need to get everything engineered

[SLY-25T]

Keep watching for sale threads mate. always injectors popping up. think there is a gt35/40 Or two up aswell. got a qoute a lil while ago for a precision 6262 Journal bearing .82 Rear for around 1200 New.

[Mick_o]

You need to set some power goals 1st so we can get a realistic idea of what you are after

[zac320]

Well don't have exact specs in hand, but heads been fully rebuilt so has motor just with stock rods and cast pistons. Would love around 250rwkw, is this realistic in a 2ton car without stressing things to much? Thanks

[vh45tt]

i think 250kw@the wheels will prob not go for too long with cast pistons and standard rods, but you can get a reliable 200-220kw out of it, i have a vipec ecu for sale 1000 bucks they are fantastic. and a t3/t4 600 dollar ebay turbo which ive personally used on my own cars and customers cars and on my 25 and 16psi made 234rwkw. so you dont have to spend lots of cash to get the result you need,

regards

drews performance

0422973210

[zac320]

Okay we will go with 200rwkw. With that ecu mate will it have the tuning capabilities to pass an emissions test? The car was last registered as a RD28TD. The RB30 bolts straight up, gearbox and engine mounts. But ive been told it will need to pass an emissions test, because the motor is older than the car. Plus the engine will need to be engineered.

Cheers

[zac320]

Ive had a look around and im starting to get nervous to whether i can engineer this. Im thinking i should keep standard turbo and standard injectors for now and go aftermarket ecu so i pass emissions test?

ALSO I KEEP SEEING $3000 FOR AN EMISSION TEST?!

Edited September 24, 2012 by zac320

[Mick_o]

The vipecs are a great unit from what I've read I'm running a link G4 which is basically the same thing and my car runs better than it ever did with a nistune ecu. A fresh 30/25 should piss 250kw in safely! Just depends on the tune! I'm smashing 25psi boost down my stock 25's neck and making 336kw at the wheels and have done safely for the last near 2 years now. If you are only chasing 250kw just go for a hypergear or gcg highflow turbo as they are cheap,reliable and proven performers. Personally I don't think the kind of Ecu u run is Gunna affect emmissions it all boils down to your exhaust and tune Steer clear of ebay junk turbos as they are generally laggy and unreliable for the extra $$$ use a tried true performer that ain't Gunna risk ya freshly built motor. Just my 2c anyway

[zac320]

Can anyone shed some light on getting a rb30/25 engineered and registered in a 1995 GQ Patrol

Patrols come with carby rb30s up until 1997

Edited September 24, 2012 by zac320

[zac320]

Another post but I've tried searching.

I've looked up automotive engineers in vic and found lots of people but I don't know if they are actually engineers.

Can anyone give me some numbers?

I've searched around and I Dnt think I will be able to engineer the car.

[KiwiRS4T]

Another post but I've tried searching.

I've looked up automotive engineers in vic and found lots of people but I don't know if they are actually engineers.

Can anyone give me some numbers?

I've searched around and I Dnt think I will be able to engineer the car.

In NZ there is a website with authorised certifiers. You could try working backwards by asking the relevant authority (transport department - whatever it is called over your way [VicRoads evidently] and ask if they have a list of people authorised to "engineer" mods.

This may be what you need - if you look on this page there is a pdf listing VASS signatories - give your nearest one a ring and tell him what you want and he should be able to tell you if he is the person you should be referring to:

http://www.vicroads....atoryScheme.htm

[zac320]

Hello. Here's an update. Rang the closet place. He said the conversion is easy to engineer. But the car will need to pass emmisions, that's the biggest problem. He said vipac do it and it's about $1000.

I've looked on the net and everywhere it says u can't engineer a rb30/25? This is so confusing! The car is a 1995. The rb30s where in patrols up until 1997. And the 25head is around 91-93. What is your input on this people? I've hit a brick wall

[zac320]

Update. Rang a few more. I've been told that if I do a straight rb25det conversion, stock intake and exhaust it will pass without an emmisions test. He said it will be the easiest and cheapest option