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Larger Turbo

Humbla

By Humbla,
in Engines & Forced Induction

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Humbla Grand Master

Humbla

Posted
Posted

Ok guys,i have done a search and can't find what i need to know.At the moment i have a gcg high flow that i have been useing for 7 years and it seems to be getting a bit tired,does any one know if there is a bit bigger turbo that is a direct fit,or one that does not require a lot of mucking around to make it fit.I like the low mounts for the sneak factor.Would like about 240 safe kw,have all the supporting mods.Cheers Genelle.Ps allso have pfc. :cheers:

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Harey Veteran

Harey

Posted
Posted

Geeze you must have done a lot of searching cause thats probably the most popular thread topic on here! :nyaanyaa:

Basically a Hypergear turbo will bolt straight to your manifold and dump pipe. I assume you already have a metal intake pipe, if not you will need one on whatever turbo you choose. The SS1PU is looking like a great street turbo to have, and if you want more power then the ATR43G3.

Then there is the GT3071/3076 options which are very common. They will need a different dump pipe as its different to the standard nissan 6 bolt.

There are also the Kando turbos.

Do you have enough fuel capacity to flow a larger turbo?

I would be doing a lot of reading if I were you. On the first 1-2 pages there is a thread about Hypergear turbos, a thread about Kando turbos and at least 2 threads about Garrett turbos. Not to mention the rb25 dyno results thread which should answer all your questions.

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Odium Grand Master

Odium

Posted
Posted

OK so I'm assuming a lot here so let me know if I'm off base...

R33 GTS-T

Current = GCG High Flow R33 Turbo on its last legs

PFC

Injectors

Fuel Pump

Z32 AFM

Thought about a R34 OP6 Highflow? Its a straight bolt on and has a .63 rear housing so it can go harder than the R33 highflows...

Should do up to about 265, depending on the quality of your other supporting mods. So 240 is easilly acheived while still being responsive as faaarrrk.

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GTScotT Grand Master

GTScotT

Posted
Posted

As stated above, stick to the GCG highflow.

Its a good stout unit, dont fix what aint broke.. So make sure its not worn out before you go changing it or bothering to rebuild it.

You already have the PFC too so make sure you have the right injectors and AFM for your power goal, alone with FMIC TBE and a fuel pump and all you need is a retune.

GL

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Humbla Grand Master

Humbla

Posted
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Posted

OK so I'm assuming a lot here so let me know if I'm off base...

R33 GTS-T

Current = GCG High Flow R33 Turbo on its last legs

PFC

Injectors

Fuel Pump

Z32 AFM

Thought about a R34 OP6 Highflow? Its a straight bolt on and has a .63 rear housing so it can go harder than the R33 highflows...

Should do up to about 265, depending on the quality of your other supporting mods. So 240 is easilly acheived while still being responsive as faaarrrk.

Cheers,this is just what i needed to know.I have sard 650s,large walbro fuel pump,split fire coil packs.7 years back when i had the turbo done the most ever got out of it was 215kw on a good day,she just ran out of puff.I don't want to be dissapointed again.Been to many tuners over the years and they all said the same thing runnung out of puff.The 34 might just be the way to go for me.Need a safe tune as she is my daily,had compression test done today across all 6 cyl between 155 and 165,mech said that was pretty good.I have a series 2 motor in her now so i hope i can have a bit more safe power,got 314000 on the clock now,never at home.I would hope gcg puts a larger rear housing on these days,that seemed to be where the restriction is on mine.Might check out gcg see what there doing these days. :D Ps have the z32 as well.

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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I had a 33GTST turbo highflowed by GCG - ran it at 240awkw and 15psi in my Stagea - it had made 260kw at one point so your figures sound like a stock turbo. Did you get it highflowed or was it sold to you as a high flow? Mine cost about $1800 - I wouldn't do it again since I could get a new GT3076 for about $2k but in your case I would go for the Hypergear as I believe they are better kw for the $ than GCG.

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