Final Turbo Decision

[ICER33]

what difference be between a vg30 rear housing and a r34???

[R31Nismoid]

nothing

[jazza08]

Are you sure??

There was a thread that showed a gcg hi-flow making 260ishrwkw and putting on a vg30 rear housing and making 280rwkw (not exact figures).

So wouldn't this suggest a vg30 is bigger? I cud be way off here but i thought thats what i read.

[R31Nismoid]

which version?

R33 rear or R34 rear.

R34 same as VG30

[jazza08]

Sorry i thought GCG machined out the rear housing so they are the same size on the hi-flowed units?? I think im abit confused then

[R31Nismoid]

VG30 is bigger than the R33 RB25 one... power difference is minimal as they do machine etc etc

Like you said, 20rwkw... others have seen 10rwkw... its minor

[jazza08]

Thanks for the info

[ICER33]

alright thanks for the info. looks like i am going to go for the hi-flow r34. how much boost can these handle?

[BezerkR32]

Soon find out i dare say.

alright thanks for the info. looks like i am going to go for the hi-flow r34. how much boost can these handle?

[Bass Junky]

hey ppls.

I'm making 250rwkw (with more than 240 for about 2000rpm) on the GCG high flow with poncams (260 x 9.15)

Flapped valve was loose so boost response was ordinary. Fixed flapper valve, boost response is now awesome! I can make full boost in 3rd at 3000rpm. Well, 1 bar, and I run 0.9 bar to make 250.

Once the new clutch goes in, I'll be taking it back to the dyno and having it fine tuned again to try to pick that number up a bit.

I've got all supporting fuel mods and blah blah blah.

BASS OUT

[R31Nismoid]

Flapped valve was loose so boost response was ordinary. Fixed flapper valve, boost response is now awesome!

Translation for that... Internal Wastegate = flapper valve

[Sydneykid]

GCG state on their website that they don't do group buys.

Tell me about it, it took me a year to organise. Finally I had to arrange it via Jamex (a GCG, Whiteline and Bilstein reseller) and they only did it because of the good response from the suspension Group Buy.

cheers

[ICER33]

so what boost level would this run??

[bloodsword27]

I've got 255rwkw at only 0.9 bar so 260 not out of the question. I have the GCG highflow btw.

I've run 12.7's

Car is an auto.

$500 for a second hand R34 turbo.

GCG state on their website that they don't do group buys.

mate ..if onli u told me i would have bought that turbo!!!....blew my MTQ hi flowed one

how do the MTQ hi flowed ones rate anyways?

[R31Nismoid]

so what boost level would this run??

As much as you need.

Just keep going till you are happy with the power etc and the tune is safe.

all there is too it

[Abo Bob]

I can't really see the turbo doing anything worthwhile above 1.4bar and it may well be next to worthless to go much above 1.2bar.

[jazza08]

Unless its an rb20 :lol:

[ICER33]

so where abouts would i go to pick one a r34 turbp up from. i have looked around and they seem to be pretty hard to find

[Abo Bob]

Good luck.

I've got one for sale. It comes with a complete engine attached to it for $2500 haha

[ICER33]

thanks a lot. hahahaha