Turbo Upgrade

[robjay]

Hi All,

Looging to upsize my stock r34gtt to a GT3582r-iw also icluding fmic and 3" exhaust

Can someone give me a quick pros & cons of trbine trim size

check this link -http://www.turbotech.com.au/turboproducts_listing.ews?turboproducts.ewdBrand=1&turboproducts.ewdBrand_Clasification=8

Im in perth..

are these prices ok? any recomendation to go elsewhere for cheaper.

Is this bolt on? I doubt it is.

What else to I need to do just to get it in and running, not intereseted in hi kw just want it in bare minimum and working.

[StealthX]

First thing I can point out is the wastegate. An internal wastegate on such a big turbo will yield poor boost control. If I was in your shoes I'd be spending that little bit extra by buying an external wastegate, it'll make a huuge difference to how he car drives and your boost curve will love you for it...

What sort of power are you after?

No this isn't a bolt on option, you'll need to modify your cooler piping to fit the compressor housing, and you'd definitely want an aftermarket dump pipe (3" at least).

I'd recommend Hyperdrive in Malaga, Andrew does great, honest, (relatively) cheap work...

[R31Nismoid]

If you don't want "hi kw", then that turbo is a terrible choice.

A GT35 is capable of around 370rwkw on a normal day, and not the turbo for a factory motor.

So as with all other threads like this, how about we try a bit of Q&A.

What are your power goals?

What is your budget?

What is the use of the car?

Do you want to rebuild the motor?

What other mods do you have?

[Shazza24]

It all depends on the size you want for the turbine side, AR 1.06 might be a large for a 2.5L engine (it would take a lot longer to spool). You would need bigger injectors to reach the limits of this turbo, and heat may be a problem on the stock internals at 400 -600hp (unless maybe you run e85).

Not sure about the answers to your other questions. I'm assuming that you have an aftermarket ecu, cos you will need it.

Check out gcg, hypergear, etc. Hypergear have a range of bolt on upgrades for RB25DET's http://www.digi-hard...rbocharger.html , http://gcg.com.au/

good luck!

Edited January 28, 2011 by Shazza24

[robjay]

Ok thanks guys yes a general thread would be awesome.

What I did was browse through some dyno graphs and with bb bearing turbo being my preference I thought an ultimate 300rw kw is a good aim.

Ok but not on a stock motor.

So to get going at bare minimum: I'm not interested in any great immediate power gains if any at all just to get the foot in the mod space with the most important bit - in a way doing it in reverse if you like.

So far gt3540 dump pipe and external wastegate and run at 12psi or whatever the injectors can handle. I have apexi neo fuel controller already installed.

[R31Nismoid]

Well for 300rwkw, a GT35 is the wrong turbo. I told you that not 2 posts above, it is capable of ~370rwkw.

If you really did read the dyno graphs, you would have seen this yourself.

Either way there are plenty of threads on GT3582 (~370rwkw) and GT3076 (~300rwkw).

Please use the search function in future:

"GT3582"

http://www.skylinesaustralia.com/forums/index.php?app=core&module=search&do=search&fromMainBar=1

"GT3076"

http://www.skylinesaustralia.com/forums/index.php?app=core&module=search&do=search&fromMainBar=1