GCG Hiflow Hybrid on R33 GTS-t

[Cubes]

Thats just it GunMetal.

GCG have been around for quite some time and appear to make very reliable turbo's.

Lots of testing and in their earlier fiddlings lots of surge.

They have since pulled the 500hp model as it was possibly over compressored.

The GT30 500hp from Horsepowerinabox I doubt with the internally gated .63 will make much more than 250rwkw. As the GCG unit tends to make ~240-250rwkw also.

[GunMetalR33]

Sorry I think you mis-understood me mate, I am in favour of the GT30 option and was refering to the hi-flow as being a re-engineered stocker. Now that I think about it, putting a .63 nissan style zaust housing on a GT30 is some what re-engineering too

  Cubes said:

Thats just it GunMetal.

GCG have been around for quite some time and appear to make very reliable turbo's.

Lots of testing and in their earlier fiddlings lots of surge.

They have since pulled the 500hp model as it was possibly over compressored.

[Cubes]

hehe thats what I was referring to... I would prefer the GCG option over the horsepowerinabox option as I don't know the history and results the turbo produces.

[Cubes]

Here's a genuine garrett engineered item for us RB30 heads.

550hp

http://www.gcg.com.au/Catalogue_Menus/Garr...tbb_gt3071r.htm

more you want moooore...

http://www.gcg.com.au/Catalogue_Menus/Garr...b_gt3540_iw.htmhttp://http://www.gcg.com.au/Catalogue_Menus/Garrett%20Ball%20Bearing%20Turbochargers/garrettbb_gt3040_iw.htm' target='_blank'>

[GunMetalR33]

I would love to get my hands on the GT3071r below if it was a T3. I agree with you in saying that the horsepowerinabox GT30 with the .63 zaust housing would not make much more than 250rwkw :{

Any idea of the price of the GT3071r???

Sorry for the hijack guys, last off topic post I promise.

  Cubes said:

Here's a genuine garrett engineered item for us RB30 heads.

550hp

http://www.gcg.com.au/Catalogue_Menus/Garr...tbb_gt3071r.htm

more you want moooore...

http://www.gcg.com.au/Catalogue_Menus/Garr...b_gt3540_iw.htm

[Cubes]

There's always adaptor plates, the exhaust a/r is a little big for the 2.5ltr though.

[GunMetalR33]

So can you get a garrett internally gated upgrade that is suitable for an Rb25det? apart from the modified one above

[discopotato03]

That first turbo is NOT a propper Garrett GT3071R . That thing is what ATP Turbo call the GT3071R "wastegated" , HKS call theirs a GT2835 .

The one pictured uses a GT28 turbine housing with a T25/28 mounting flange .

The real GT3071R uses a GT30 turbine and exhaust housing with a T3 flange and non gated .

[Cubes]

I have noticed inconsistency's with garrett's web site.

[Al]

  Sydneykid said:

Hi Ian, what cams did I tell you to buy?  :innocent:

What cams would you recommend for a GCG hiflow with a VG30 ext housing? I am considering Tomei Poncams [ECR33 Series 1 (RB25DET) - Duration: IN,EX 256 Lift: IN,EX 8.5mm] , with Tomei valve springs [To Suit RB25DET Lift ～8.80] and possibly "race porting" the head.

PS: Are the valve springs required? Car is running std bottom end with rev limiter set to 7200rpm.

[bigcarl]

ive got a hpinabox gt30 with 70comp cover and .63 a/r internally wastegated and it is actually put together by gcg turbos. as for power i got 260rwkws at 20 psi. now my engines is almost fully rebuilt with tomei pon cams i will let you know how it goes. please dont critisize a product that you havent even road tested.

[Steve]

Seems pretty low, I had 0.61 on a hks gt30 and it put down 256rwkw on an interim tune at 14.5lbs - that was behind a rb25

[bigcarl]

are we talking about the same turbo? no. my turbo is a 500hp gt30. yours is a hks gt30 which although rated at 480ps plus what ever , they can make alot more power than the equivilent garret gt30. im not after stupid comments , im not trying to out do anyone. my gt30 pulls 230 rwkws at 13 psi and 260rwkws at 20psi with internal wastegate and standard cams end of story. im sick to death of people saying thats shit this is better blah blah blah. how about i stick a hks t51r and blow you all away or a t88 which would probably pull 280rwkws at 12 psi , who cares.im not trying to out do anyone i was just making the comment in reply to cubes who said that my type of turbo will have truble pulling 250rwkws . i did not put this combination together to win dyno comps or to try to impress anyone.

[Cubes]

Carl,

Loose the attitude. I simply stated it 'may' have trouble pulling more than 250rwkw.

  Quote

I would prefer the GCG option over the horsepowerinabox option as I don't know the history of development and results the turbo produces.

The point I was making is GCG is reputable, they make reliable turbos and most know it.

I haven't seen results from Horsepowerinabox, I am unsure where they get their turbo's done, when asked if the 500hp internal gate turbo is the same as the gcg item, they stated "its from the same place gcg get their turbo's from"

EDIT: It looks as if GCG does indeed machine up the turbine housings for them.

[Steve]

  bigcarl said:

are we talking about the same turbo? no.  

Well, alot of people are saying a GT30 is a GT30 - that garrett and hks are the same and that gcg or horsepower can make the same turbo as hks

different debate, BUT this was talking about a small turbine AR on a GT30 turbo - and that is why I said what I said. You are splitting hairs about a 20hp difference in rating - and the smaller rated turbo should make less power than the higher rated turbo.

  Quote

im sick to death of people saying thats shit this is better blah blah blah.  

Just pointing out that your turbo's performance is pretty damn ordinary - my comparison was with stock cams too. Dude, if that is the best you can do with that turbo, there are serious issues somewhere else in your setup, cos it just isnt performing well at all. Other guys on here have the same turbine housing and making tons more power than you - even with stock cams - give GTSt-VSPEC a pm and see what he managed.

I am sick to death of people getting defensive on this forum over there average performance. You ask others not to judge without having test driven, well I dont need to test drive to tell you the performance is pretty damn ordinary.

  Quote

.... im not after stupid comments....

how about i stick a hks t51r and blow you all away or a t88 which would probably pull 280rwkws at 12 psi ,...

anyone notice the contradiction here?

  Quote

who cares.im not trying to out do anyone i was just making the comment in reply to cubes who said that my type of turbo will have truble pulling 250rwkws . i did not put this combination together to win dyno comps or to try to impress anyone.

Thats good, because you wont impress anyone. Have a look at the figures you posted, 230rwkw at 13psi, AND ANOTHER 7 PSI TO MAKE 30 KW - what looks wrong here? obviously you have some serious issues - either your setup is very, very ordinary, or as Cubes says, the turbo is really having trouble.

get defensive as you like, your setup is ordinary and needs some serious sorting.

push that turbo out of its efficiency range if you like, I certainly dont care, but to use it as an example of a GT30 with 0.63 housing make over 250rwkw easily - you are dreaming.

[Roy]

LOL...argue all you want, tragically my d1ck is still bigger:)

RB20 POWAH!!!!!!!!!!!!!!!!!!!!!!!!

[Roy]

But seriously, rather then attacking one another, is it work asking the question, bigcarl are you running a cat, what diam exhaust, what air filter/IC, what boost controller?

You hit the nail on the head, its the setup, not just the turbo. And lets not forget tuners and dynos:( To get some sort of feeling about how it all works you have to look a bit closer, dont you?

But i agree, you are making good power at 13psi, and it seems you having to wind a lot more boost into it for the extra power. Could be worth having a closer look at, you may pick up some free power by having a play:)

[inabox]

  Cubes said:

Carl,

Loose the attitude. I simply stated it 'may' have trouble pulling more than 250rwkw.

The point I was making is GCG is reputable, they make reliable turbos and most know it.

Horsepowerinabox has yet to prove its self, I am unsure where they get their turbo's done, when asked if the 500hp internal gate turbo is the same as the gcg item they stated "its from the same place gcg get their turbo's from"

When I see quotes on a public forum suggesting my business "may" be supplying turbo's put together by butchers.... I tend to take offense in some form.... Horsepowerinabox is built on customer service, good prices and quality product. I can assure you that they are not put together by butchers!!, and I would consider that we do have been around long enough to have laps on the board in the scene.

The GT30 we offer is not intended to rotate the earth on the dyno, it is intended to provide a bolt on option for the T3 RB guys. It is a genuine Australian sourced Garrett turbo with the RB exhaust housing machined to suit by a Garrett Distruibutor. It has the usual 12 month warranty.

I don't want to get into a tennis match of debate here... but I do want to make the point that forums can be damaging to business reputations so please be a little thoughtful on comments relating to businesses. You have every right to shop where you choose and buy from who you choose and trust, but I think the comments are harsh and unjustified in this case.

Regards

Morrie Huckel

Horsepowerinabox.com

[Cubes]

My apologies Morrie,

From my understanding when you machine a housing no matter what to some extent the nozzels are butchered anyway.

Offer an option for the VG30DET housing and no doubt it will be a stormer, the turbo will then live up to its 500hp rating, well close to anyway.

[Bass Junky]

Has anybody found me an exhaust housing yet?