[TurboKits.com]

GTK-1000 Specs:
Comp Size: HP76, .70 A/R, 4" Inlet / 2.5" Outlet
Turbine Size: T4, 4" V-Band Outlet, .96 A/R, F1 S Trim Wheel

Originally Posted by stevieturbo

Sounds like a plan......

In terms of mm. What size would the GTK-1000 compressor be comparable to ?

T70 ? T76 ? etc etc

[lexusftw]

what are the specifications for the bolts used for the oil return line?

[Robert]

Originally Posted by lexusftw

what are the specifications for the bolts used for the oil return line?

the oil return uses a cast flange with a 5/8" NPT thread I believe.

[lexusftw]

so the two bolts that bolt the return flange to the turbo are 5/8 npt??

[TurboKits.com]

Originally Posted by lexusftw

so the two bolts that bolt the return flange to the turbo are 5/8 npt??

M8x125? Rob is this correct?

[lexusftw]

I was hoping it was more along those lines. 5/8 npt doesnt sound right...

[ChauChaser]

Hi,

I'm very interested in this turbo. I've heard alot of positive comments about this turbo. I'm looking for a turbo since mine is about to give up. I have a S1 96 Toyota Chaser 2.5 turbo.

I assume the GT-K550 would be a good match for my car. I want to make a driveable an reliable 280 rwkw (375 rwhp) and with spare room for the future if economics are better. Since I can't find any compressor map about this turbo, what can I expect of it?

Thanks for help,

-Chau

[Robert]

Originally Posted by ChauChaser

Hi,

I'm very interested in this turbo. I've heard alot of positive comments about this turbo. I'm looking for a turbo since mine is about to give up. I have a S1 96 Toyota Chaser 2.5 turbo.

I assume the GT-K550 would be a good match for my car. I want to make a driveable an reliable 280 rwkw (375 rwhp) and with spare room for the future if economics are better. Since I can't find any compressor map about this turbo, what can I expect of it?

Thanks for help,

-Chau

The GT-K 550 will more than make 375 RWHP. At 8 PSI I had a very similar compressor making 380 RWHP.

[ChauChaser]

Wow 380 rwhp with 8 psi. Very impressive. Hmmzz doesn't this mean that the 550 is a bit too big (laggy)? I'm not aiming for 1000hp final setup.



What would you recommend? I want a setup that will like come to life from 3500 rmp. (daily driving I almost never pass 3500).

Thanks.

-Chau

[Robert]

Originally Posted by ChauChaser

Wow 380 rwhp with 8 psi. Very impressive. Hmmzz doesn't this mean that the 550 is a bit too big (laggy)? I'm not aiming for 1000hp final setup.



What would you recommend? I want a setup that will like come to life from 3500 rmp. (daily driving I almost never pass 3500).

Thanks.

-Chau

Well I was running the older version of this compressor and turbine wheel on a 3.5L V6 so 8 PSI was good for that power and the spool up time was great. With a 2.5L you might get a little bit of lag with that large of a compressor but the 1JZ motor shouldn't have too much of a problem with it. You could always go with the GT-K 500 which is one step down on the turbine side but the exact same compressor. This would gurantee there's no lag but if you wanted to build more the smaller turbine wheel might to flow enough for you. Its a tough call but I think you'll be fine with the larger GT-K 550 turbine especially if you want to make more power in the future.