Which Turbo Gt3582r Or Gt3082r?

[whistle]

Hey guys,

I recently bought my first skyline and want to get more power out of it. It currently makes 220kw at the wheels, but i want more.

Im just after some info on turbo selection, im thinking of running either a GT3582R with a .63 rear or a GT3082 with a .82 rear. (Both with External gate)

If anyone has run either of these two setups or have some info about them, can you help me out please.

I would like to know the following:

At what revs you reach boost

Is there much lag

How much power you made

Thanks David

Edited May 4, 2009 by whistle

[Parag0n]

You're going to have to upgrade the fuel system, you probably want aftermarket ECU as well, FMIC, or do you have these already?

Personally I'd go with neither and choose a TO4Z with .84 rear housing.

[whistle]

  Parag0n said:

You're going to have to upgrade the fuel system, you probably want aftermarket ECU as well, FMIC, or do you have these already?

Personally I'd go with neither and choose a TO4Z with .84 rear housing.

I have an Autronic e420c ECU, FMIC, Aftermarket coil packs, 3" exhaust, top mount turbo manifold, custom plenum. I had a T04Z before on my VL but i was told that it would be too laggy for the RB25.

Edited May 4, 2009 by whistle

[whistle]

  whistle said:

I have an Autronic e420c ECU, FMIC, Aftermarket coil packs, 3" exhaust, top mount turbo manifold, custom plenum. I had a T04Z before on my VL but i was told that it would be too laggy for the RB25.

[Parag0n]

Is your exhaust unrestricted at least 3 1/2", magnaflow cat etc ?

I have seen numerous RB25 with TO4Z smaller rear housing of .84, it won't be crazy laggy, I would say no more than that GT35 in the op.

[whistle]

Yeah it's a straight through exhaust. Not going a T04Z.

[bb_gtr]

Go for a GT3076R(aka GT3037 or HKS GT3037) with 0.82 rear.. Will perform much better all thru rev range and much more enjoyable to drive than a GT3082R or GT3582R. The 3082R wouldnt make much more peak power and would be higher in rev range than the 3076R.

I have seen so many people got for the GT3082R and GT3582R and be unsatisfied because the power is made so late and unenjoyable on the street. Sure, they are fine when the come on boost hard but become cops to drive for daily driving.

Especially with stock internals, the GT3076R is the best turbo to go. It will be the most responsive out of the lot and best power band. Easily capable of 300kw atw on 18psi+

[R31Nismoid]

You dont put a .63 on a GT35, just too restrictive.

Go the GT30 .82

[NYTSKY]

GT3076.82 FTW!

[cactus]

GT3082R... I have one on my RB25 and is not as laggy as people make out. I run an auto and make 260rwkw (15psi) but has gone as high as 290rwkw (20psi and smaller convertor, on ovaboost dyno here in WA which is very very low reading). So I'm sure it will make bulk power on a manual.

You can buy my turbo if you want

But honestly the 3082R I believe is a great turbo. Full boost well before 4000rpm, not sure where exactly, but holds strong through to 8200rpm

Edited May 5, 2009 by cactus

[Pattygtst]

depends what your power goal is but if its 300rwkw or below there is no better option then the gt3076r 0.82 housing. It will deliver the power better then any other suited turbo.

[discopotato03]

IMO the GT3076R is a better wheel match than a GT3082R and I think a GT3582R is a little hard to justify (for me anyway) on an internally std RB25 .

For bolt on turbos the GT2835 and GT3037s are supposed to be very good but expensive .

A .

[eddieneedsboost]

Would a GT3076R with 400rwhp be reliable on a standard internal rb25?

Car will be a daily with some balls and also see the track once a month..

[R31Nismoid]

Long term - probably not.

No RB25 pushed that hard has lasted forever... but then its a fair hike on factory so its to be expected.

260rwkw would be about as far as i would personally go for ultimate long term life.

That figure also puts you into a smaller turbo range = more response, which overall for a street car is what you want

[Guilt-Toy]

I have a GT3082r turbo for sale for $1000 !! cheap as! need it gone ppl

[Tomei_Powered]

  whistle said:

I have an Autronic e420c ECU, FMIC, Aftermarket coil packs, 3" exhaust, top mount turbo manifold, custom plenum. I had a T04Z before on my VL but i was told that it would be too laggy for the RB25.

Have you thought of running a smaller turbo eg. a GT28RS?

Stock internals best go for something nippier unless you plan to rebuild your engine with commitment and cash ready.

Putting in a fairly big turbo needs lotsa cash and research. Not just buying a GT35R and slap it into your motor. You need to consider fueling (fuel injectors and pump), oil pump (for me N1 oil pump is just crap. Go for a TOMEI if you can afford one or a JUN), Forged pistons and rods, race bearings, valvetrain (cams, valve springs, solid lifter conversion if possible) No use having such a big turbo on a RB25 and killing the spool at 7000-73000rpm.

There are much more to consider before commiting yourself for something bigger.

[cactus]

  Tomei_Powered said:

Have you thought of running a smaller turbo eg. a GT28RS?

Stock internals best go for something nippier unless you plan to rebuild your engine with commitment and cash ready.

Putting in a fairly big turbo needs lotsa cash and research. Not just buying a GT35R and slap it into your motor. You need to consider fueling (fuel injectors and pump), oil pump (for me N1 oil pump is just crap. Go for a TOMEI if you can afford one or a JUN), Forged pistons and rods, race bearings, valvetrain (cams, valve springs, solid lifter conversion if possible) No use having such a big turbo on a RB25 and killing the spool at 7000-73000rpm.

There are much more to consider before commiting yourself for something bigger.

Not necessarily.

My stock RB25 running the GT3082R made peak power @ 8000rpm, power was still climbing then too but tuner didnt want to go past this because of the stock bottom end. I was running turbo, stock exh. mani modified, greddy style intake + 80mm TB, 550cc, EMS, 910 fuel pump, billet rail with larger fittings/lines, splitfires etc. but beyond add ons, engine was completely stock.

It lasted a little while, until I put a good exh. manifold on it and didnt check boost, free flow = 26+ psi lol and killed 2 pistons on a cruise.

[Tomei_Powered]

  cactus said:

Not necessarily.

My stock RB25 running the GT3082R made peak power @ 8000rpm, power was still climbing then too but tuner didnt want to go past this because of the stock bottom end. I was running turbo, stock exh. mani modified, greddy style intake + 80mm TB, 550cc, EMS, 910 fuel pump, billet rail with larger fittings/lines, splitfires etc. but beyond add ons, engine was completely stock.

It lasted a little while, until I put a good exh. manifold on it and didnt check boost, free flow = 26+ psi lol and killed 2 pistons on a cruise.

Yea, you can stuff a GT30 and beyond on a stock motor but did it last?

[Mr. Untouchable]

meh, "sall in the tune!!

[unique1]

i look at it as the motor is gonna go if you push close to risky numbers and a bad tune it can go with alot less power, so goto a turbo with headroom for more WHEN (not if, its when!) you rebuild it or you will be doing the turbo change again later on something small like a gt28 is a waste of time and wont feel quick for long and you will want more. Choose one size up from the power figures you think you are chasing as you will always want abit more, just run low boost for the meantime until you upgrade the motor etc. A 3076r or 3082r is a good option imo for a 2.5L, if it was a 3L i'd push towards the 3582r.

Edited May 6, 2009 by unique1