[volvokvaloya]

Hello,I`m having a 2,5L 4 cylinder 8 valve Volvo engine using a T61BB P-Trim,1.00A/R.The 61 turbocharger works Perfect but now i`m gonna upgrade,and i am thinking of the GTK650 or the T66BB.
Does i need a 1,00 house on the 66 turbo too?
Do the GTK come with the T4 divided??

Greetings J?rn,Norway.

[Robert]

Originally Posted by volvokvaloya

Hello,I`m having a 2,5L 4 cylinder 8 valve Volvo engine using a T61BB P-Trim,1.00A/R.The 61 turbocharger works Perfect but now i`m gonna upgrade,and i am thinking of the GTK650 or the T66BB.
Does i need a 1,00 house on the 66 turbo too?
Do the GTK come with the T4 divided??

Greetings J?rn,Norway.

The GT-K at this time is not offered with a divided turine housing. For the A/R you should be fine sticking with the same A/R and turbine section. The GT-K 650 uses a HP66 compressor and F1 P trim turbine. The F1 P trim is a 10 blade unit that flows better and should give you the same or etter spool up with the 66 millimeter compressor wheel then you already get with the T61.

[pnanassy]

Hi Robert,

im also hesitating these two chargers,my application is a 2.2l (later upgraded to 2.6l) Audi 20VT.
Could you please explain why would a bigger P trim turbine (64,5mm diam.) spool faster then a smaller Stage V turbine (61,9mm diam) ? Also mated with a bigger compressor wheel (T61 vs T66),i would expect a bit more lag.If thats true,i also should go with the T66...

Is it possible to order the GT-K series chargers with other than the "standard" trims?Is it possible to fit GT-K comp covers to HP wheeled chargers?On the turbonetics site there is also a "HP64" turbo mentioned,any measurements of this?