Gt3040

[B-Man]

Oh boy - I like those ! Nice !!!

Mmmmmm GT35 !

Need to price the rest of the bits to go with it......

[JNR24]

Im running the GT35/40 on a RB30/25. (Stock rebuilt head)

mine should be broken-in within the next few weeks, il tell you how she whirls! =P

Cant go wrong with the GT30s /40s...

[JNR24]

Just for the record.....

$2400 isnt cheap.... considering there on special...

RPM Performance centre in adelaide do the Garrett GT30 600HP DBB with 1.06A/R for there NORMAL price of $2250.

Man i got my GT3540 1.06 for $1980...

BRAND NEW, still had Garrett factory stamping on comp cover.

http://www.rpmperformancecentre.com.au/Turbos.htm

[Guest INASNT]

do all these garretts have the T3 flange??

[JNR24]

GT30s, 35s, 3540 all use T3 FLange.

[JNR24]

and 3040s.

[B-Man]

T3 Flange is what we want right ?? But need external gate on the manifold - means hacking existing manifiold or fabricating a new one - in which case the flange spec don't matter cause you wil be fabricating a new one anyhoo.

Sounds expensive.....

[Jimbo2000]

seen this b-man???

UAS site, nismo.com.au

click on parts/accessories/ turbos

3rd one down

have a feeling its merli's old one but having never seen his nor met him i am not too sure.

[B-Man]

You mean this one Jimbo ??

That's not Merli's - I doub't Andrew would seperate :

This is the GT3040 that CGC sells - but in a package with standard (modified) manifold and external TIAL gate.

Pretty pricey - and I wouldn't use the standard manifold......

I'm a little concerened with lag - as I understand anything over about 600HP is getting up there in the lag stakes.

I suppose one could just keep the revs over 4000RPM - then no lag problem right ?

[RS500]

B-man,

fyi, the two turbos which GCG list as "GSB8005A" & "GSB8006" are actually two totally different turbo cores as per Ray Hall's website. the specs are as follows;

i) GT30 (GSB8005A - 700177-0011) : Rated at 475hp

* A/R 0.70 comp housing

* 52 trim compressor wheel (TO4S - 2.17"/3.00")

* 50 lbs/min max. comp flow

* A/R 0.82 exhaust housing

* 90 trim exhaust wheel (2.11"/2.22")

ii) GT30 (GSB8006 - 700177-0014) : Rated at 600hp

* A/R 0.70 comp housing

* 64 trim compressor wheel (GT40 - 2.41"/3.22")

* 65 lbs/min max. comp flow

* A/R 1.06 exhaust housing

* 84 trim exhaust wheel (2.16"/2.36")

the 2nd unit would be what is considered the Garrett GT3040 as it uses the 64 trim compressor wheel from the GT40 family along with the A/R 1.06 exhaust housing to allow for great air/gas flow.

Any smaller exhaust housing would make it more streetable although max power would be limited due to exhaust flow restriction with the smaller housing.

cheers.

[Guest INASNT]

1.06 seems 2 big exhaust housing for street.

[B-Man]

RS500 - thanks for that info !

[Steve]

Unless you buy HKS, they come in GT25

[Freebaggin]

No they don't, all Garrett GT30 turbos and higher are T3 exhaust flange.

The HKS GT3040 turbo uses a GT25 flange. Some HKS turbo come in T3, some with GT25, check it out here:

http://www.hksusa.com/categories/more.asp?id=1092

For those who care, this is the difference between HKS GT3040 and Garrett GT3040, HKS just Garrett parts mixed up in various combos, with proprietary housing designs:

HKS:

Rated at 500hp

* A/R 0.70 comp housing

* 50 trim compressor wheel (58mm/82mm)

* A/R 1.12 exhaust housing GT25 flange

* 84 trim exhaust wheel (60mm/55mm)

Garrett:

Rated at 550-600hp, depending on exhaust A/R

* A/R 0.7 comp housing

* 64 trim compressor wheel (61.3mm/82mm)

* A/R between 0.82-1.06 exhaust housing T3 flange

* 84 trim exhaust wheel (60mm/55mm)

[DoughBoy]

Originally posted by Freebaggin

For those who care, this is the difference between HKS GT3040 and Garrett GT3040, HKS just Garrett parts mixed up in various combos, with proprietary housing designs:

Check the number of blades and the actual design of the compressor/turbine. It's a bit more than just mix n' match from a Garrett spare parts bin.

[rob77]

You can fit an external wastegate turbo to the stock manifold without modifying the manifold. You just attach the wastegate to the exhaust housing. My td06 was done in this manner.

[Guest INASNT]

but the stock manifold is shit.

[B-Man]

:werd: