Any ideas guys... debating GT42r against that one...

 

Yeh
Turbonetics has finally joined the present decade by offering the GTK turbos. The turbine wheels are very familar to the S-trim/GT42 turbine wheel.
They do have an interesting twist to the anti surge design though.

 

i was interested in the gt-k's until i found out they were single ball bearing so i went with a Garrett T04Z.

 

I heard it is dual ceramic ball bearing turbo.

 

i had steve order mine...go ahead and get it

lets be testers. you on the BP 13b and me on the ported 20b

 

I've created at least one or two threads on the GT-K's trying to figure out if they lived up to the hype. *no-one* has dyno comparos for these things and I don't expect turbonetics to release flow maps any time soon.

Any word from distributors?

 

i think they just started shipping....mine will be here in a month

 

what size are you getting allrotor93

 

biggest 76 available

 

are you changing the housing or are you keeping what it comes with.

 

The GTK uses a smaller turbine wheel then the GT42's. The compressor wheel though is virtually indentical in design. The GTK though is more compact in size and will make 1000crank hp, where the GT4276 will make 1150-1200hp.

 

but turbonetics will warranty their turbo

 

They will do that....but it takes months to get it back.

 

very true...i guess it depends on how much business you do with them.

i wanted a 42r but coulnt get sean in time and had to order something

 

allrotor93 - thats a lot of turbo there, can you post some pics when recieve it?

rx7__newbie - its a single bb unit.

 

absolutely....should be here in a month

 

maybe this is an obvious question, but whats wrong with single ball bearing vs. dual ball bearing? Does it make that big of a difference? Seems like single might be more robust where dual has a bit less friction?

 

I've been talking with Robert over on the turbonetics owners club forums. The only GTK's with rotary friendly a/r's are the 800 & 1000.

I'll call and ask if they can Frankenstein the compressors & turbines for a more useful turbo for our unique engines. I figure if they can retrofit old turbos with new ball bearing CHRAs they should be able to do this...

 

i have a 1000 coming this week. i t will be going on a 20B so i will keep everyone posted

 

20B in a 2002 tahoe nice!






j/k didn't see a car in your sig besides the one for sale, is the gt-k 1000 20B going in a fc, fd?

 

its an FD

that would be one kick *** tahoe though. i could fit 2 in there

 

I was refering to the 850 and 1000 turbos as having the S-trim turbine wheels.
Does anyone have the exact turbine wheel specs meaning the inducer/exducer dimensions.

 

they havent released them yet. only certain dealers have access to the turbos right now. june 1st they will be available to the general public through turbonetics.

i am not opposed to measuring. the only thing they had was a .96 but he said he would swap that out for me when he gets some. i just needed it to make the manifold.

 

The 850 and the 1000 have the inconel F-1 wheels IIRC. I'll see if i can't get those dimensions for yah.

 

It's a shame i can't edit, would have saved space. Anywho:

The F1 P trim is a T4 turbine with a F1 65 trim turbine, they used to call it an F1 P trim turbine wheel.

The standard T4 P trim has a 2.542" exducer and a 2.920" major diameter. The F1 wheels have a taller tip height and are all 10 blade turbine wheels.

He's digging deeper to see if they've "released" any other data.