High flow turbo

[DREMEN]

Anyone here done this on their R33 GTS-25T???

Who did you get to do the work???

How much did it cost?

What sort of gains did you make?

[AeroGrace]

Originally posted by DREMEN

Anyone here done this on their R33 GTS-25T???

i'm sure there are some out there.

Originally posted by DREMEN

Who did you get to do the work???

Depends on where you are, local/interstate workshop?

Originally posted by DREMEN

How much did it cost?

Largely depends on *see above response*, and also how much work you are doing.

Originally posted by DREMEN

What sort of gains did you make?

As mentioned, depends on how 'tuff' you want the original one to be rebuilt to.

[MRK25T]

I've got my standard r33 turbo highflowed - did it a couple of months ago. I got it done with a lot of other work so i'm not sure how much it came to. Precision did mine (through Envy Imports located on the Northern Beaches).

My car hits fuel/boost cut if I increase the boost a little bit past stock, so I bought myself a new powerFC which will be tuned next wednesday.

I think B-Man has a high flowed turbo, but was more expensive and probably better than mine.

Mark

[matlowth]

I had my turbo high flowed at ATS in adelaide... Cost me about 2k from memory (2 years ago)...

They're good if you're just chasing an extra 20rwkw, but if you want to make a decent amount of power, just put the extra $$$ to a new turbo. The housings (comp and exhaust) are too small to make big power.

matt

[macka]

DREMEN opens up a can of worms

[BOOSTD]

try GCG turbocharges. They quote 20% power increase at the same boost and no loss in response. Check out Serious Performance 6. They change both the turbine and inducer.

www.gcg.com.au

[skyr31]

what is the actual process?? Enlarging the exhaust wheels or something?

[Sydneykid]

Hi DREMEN, we have a R34 GTT with a GCG hi flowed turbo on it, makes 260 rwkw. Cost a bit under $2K.

Hi skyr31, our hi flows from GCG have all had;

The compressor wheel replaced with a larger one

The compressor cover machined to suite the larger compressor

The turbine replaced with a larger one

(stainless steel replacing the standard ceramic)

The turbine cover machined to suite the larger turbine

A larger diameter shaft

Larger diameter ball bearings

All the rotating stuff micro balanced

New seals fitted.

So basically everything that wears is replaced, so it is almost like a new turbo. Much stronger with the larger shaft, not ceramic turbine and larger balls. Higher flowing due to larger turbine and compressor. Best of all everything bolts back up to the turbo as per standard.

There is also an upgrade path, if you want more power then they can replace the compressor cover with a larger one and/or the turbine cover. Much cheaper than buying another turbo, particulalry when you include the cost of fabricating parts to fit non standard turbos.

Hope that helps.

[skyr31]

That does help sydneykid, you answered some of my questions in another thread not long ago, with a 3 inch zorst, bost, gtr cooooooler boost,pod adn maybe an afc i might make some decent power!! As long as i dont get hammered by an ss comme or a falcon i'll be more than happy!

[ken]

Hi Sydneykid,

I found the price for High flow Turbo from the GCG web page. It's more than 2k. They have two stages.

XTRGTST-STG1 450hp rated $2250.00

XTRGTST-STG2 500hp rated $2450.00

Where can you can it under 2k? Through some dealers?

Thanks!

[T0nyGTSt]

GCG are but one specialist, they are apparently good but they aren't the cheapest.

Look up "turbo" in whitepages. You should be able to get someone to do comparable work but cheaper elsewhere...

T.

[macka]

ken most of us just have sleeve bearing cores which drops the price down considerably!

The Ball bearing core is what makes it so expensive if you can afford a bit of lag then it may be a better option. The quality of the turbo is not affected

[Turbo Tits]

GCG stage 1 hi flow turbo requires 22psi to make 450hp at the engine, as stated in a previous related thread.

[Sydneykid]

Hi TT said, "GCG stage 1 hi flow turbo requires 22psi to make 450hp at the engine, as stated in a previous related thread."

And I said that's not quite correct in the "previous related thread".

We have one on an RB25DET that makes 260 rwkw at 19 psi. We also have one on an RB30DET that makes over 300 rwkw at 20 psi. On a properly set up engine it does not need 22 psi to make 450 bhp. On a badly set up engine it might.

The engine has way more to do with it than the turbo.

Hope that helps clarify

[Sydneykid]

Hi macka, when you post "The quality of the turbo is not affected" your not saying that a "sleeve bearing core" is as good as a ball bearing core are you?

Sorry, but you get what you pay for. Plus the prices that appear on websites are "Recommended Retail Prices". Ring up you might be pleasantly surpised, I quite often am.

Hope that helps some more.

[macka]

No sydneykid i think some guys get a bit frightened of the price...Thats why i suggested go for a sleeve bearing unit.

Ive never been able to fork out enough for a BB turbo in one hit just wanted to tell them there are other options..

[benm]

Dremen what sort of mods do you currently have? No point getting a Hiflow if the rest of your components aren't up to it.

[ken]

Is the price from GCG only for high flowing the turbo? What about the labour for take the turbo out and put it back in?

If not how much is it going to cost?

Thanks!