I know that JET previously looked into replacing the T60 with something else but has anyone done this yet? Instead of getting mine rebuilt my local shop was inquiring if I wanted to change out the Turbo to something with more potential.

 

Garrett.

 

Rawr I know this thread is not flame retardant, lol. I can't in good conscience sell the used kit for much so I'm looking at either puling the kit off until I can figure out what to do next or rebuild / go custom with a bigger turbo.

 

As people had tried upgrading the turbo before to get more power, but failed due to the size of the down pipe (2.5 inch).

 

I have heard that twin Mitsubishi TD05-18Gs fit nicely in there. a few people have swapped their TN turbo (kit) for these. Seriously though, I don't think anyone has succesfully gotten it to work.

Try bugging TN about the Stage 2.........it's been well past 6 months since the initial SEMA release of the GT-Ks. I thought the Stage 2 was going to be released just after the new year. I was waiting, and then by the end of January, I said F it. Sold the TN and bought the Greddy. With my luck, I figured that TN would announce the Stage 2 right after I bailed out, but it has been 3 months since then............

 

anybody heard of makin a custom downpipe? LOL
the first thing i would do if i was to go turbo is to get 3.5 inch downpipe(s) made!

 

I know Jeremy @ Performance Factory is working on some upgrades to the TN kit. His tech, AJ, has trapped over 116 on stock wastegate pressure in a heavy G35 Coupe!!! That's got to be some kind of record for the TN kit?!?!?!

 

Yeah, from what I understand Jeremy's shop has a downpipe upgrade in the works. It would be a great piece to sell en mass to the public. (hint, hint)

But, speaking of new turbos... why would you want to downgrade to an 18g?

There are plenty of other threads on the subject, but if I were to actually do this I'd go with a GTK550.

 

Actually I'm pretty sure Alberto trapped 116, and ipcheck trapped 118. Ipcheck had a wastegate dump as well...

 

Really ? ? ? anymore info ?

T

 

A local shop in Hawaii said a custom downpipe wouldn't be too much of an issue and they could reroute some items to allow for a bigger pipe. They mentioned using a GT35 but I think MIA showed a while back that that turbo wasn't an upgrade. I'm gonna try and search and see if I can find that thread. I think there was flow charts and what not in there.

 

Custome downpipe can be fabricated at any good tuner shop who can fabricate and weld.

Go for it! GT35R FTW.

 

Damn it if the GT3582 isn't an upgrade! Especially with the .83 turbine housing. Will it work? There might be other weak links somehwere that will limit the GT3582's potential. It's just not worth it. Greddy's are the answer!

JET

 

I think replacing for a GT35R would be a much cost efficient alternative than installing and buying another whole kit

GT35R is a great replacement. He can probably go with a higher AR.

 

Hybrid the Turbo to a bigger wheel, but keep your boost curve(or bubble) in line so that your not just spinning the wheel, and are acctualy building boost in the power curve, a turbo fab shop can do this. But this only can bring a certain # so it all comes down to what your lookin for. My buddies shop pumps out mass. production hybrid turbos for the SRT-4's getting in the stock turbo and machining the houseing and appling a bigger wheels to the stock turbo, thus gettin about 370-380 to the wheel....Just my ....FYI going to do that to my TN turbo when I'm ready, but that depends on if its able to hybrid, we shall see havn't looked into the TN turbo yet it may come down to putting something else in place of..

 

What I said was a GT3582 would flow more then a 60-1 but not more then a 62-1 which is much easier to switch to. The 62-1 compressor will easily outflow the GT3582 and its a simple compressor wheel swap with some minor compressor housing work. Of course if you wanted to swap and you are going for bigger power why not step up to a GT-K 550 or GT-K 650. They will both easily outflow a 60-1, 62-1, or GT3582 and except for the GT-K 650 being a T4 turbine the GT-K 550 would be a fairly easy replacement. The F1 Stage V turbine wheel has already been used in place of the standard Dtage V on one car (Reggie's G35 sedan) so I know the turbine housing can be machined to fit that wheel. You see the Z turbine housing (on this kit I mean) is a bit different then your standard tangential T3 turbine housing. Its a Kokelen housing and as such its dimensions present a unique challgenge. Regardless since we now know the F1 Stage V wheel will fit in it its now just a matter og getting the GT-K 550 compressor section fitted to it. Reggie had planned to do this but ran out of time on trying to get everything to fit into his schedule. What I would personally do if it was my car was order a GT-K 550 with the Z specific turbine housing and then let the shop near you re-work the intake piping (the compressor section on the GT-K 550 is different) to make it all work. Of course if you are looking for more then 600 WHP then I'd go with the GT-K 650. The 650 is a T4 turbine so you'll need to have the shop cut off the T3 turbine flange and weld on a T4 turbine replacement. The turbine discharge is a 3" vband so you'll also need them to change the downpipe for you and since you are going to change things you could have them shoe horn a full 3" downpipe all the way back from the 3" vband. That setup should be good for over 600 WHP... Consequently a DSM guy on the Turbonetics Owners Club just installed a GT-K 550 on his car and is pretty impressed with it so far. Here's his posts on the matter and a quick video he took:

 

I was refering to hitting those kind of trap speeds in a G35. Isn't the Z about 300 pounds lighter than the G?

 

Very NICE!!!

 

Good Info thank you

 

116mph in a G is great. Jeremy's new wastegate design/relocation is obviously helping, from what he told me, the power doesnt fall off as much up top-which is a big advantage but I'm sure he will chime in.