Official STS Rear Mount Turbo Discussion Thread
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Been Talking to rick at STS as AthensG suggested and he's very helpful. I'm debating right now whether I should go ahead and do a built shortblock or do the VB, TQ converter and upgrade the turbo to the GT35R which rick says will spool quicker. What do you guys think?
Originally Posted by danielwebb
Been Talking to rick at STS as AthensG suggested and he's very helpful. I'm debating right now whether I should go ahead and do a built shortblock or do the VB, TQ converter and upgrade the turbo to the GT35R which rick says will spool quicker. What do you guys think?
Good for you, he's really very easy to talk to. If you have the $$$ then I'll definitely do it. I wanted to get the GT35R coz of it's quick spool and decent power and he has a T4 framed GT35 available if you want it. Honestly if I'm going to do a build right now I'll rather work with the STS kit just because of the simplicity of the kit, but my # 1 reason for staying with the STS is because I'm in love with the sound even when I'm just cruising with out boost.
I say talk to Rick more and he'll be more than happy to work with your goals... I did mentioned to him about you and I bet he'll be happy to show the world what the STS can do with a built motor.

Edit:
You just got the kit so I say try to max it first before you jump to a new Turbo/engine build right away... when the time comes to build then Rick has some option for you that will just be a straight drop in with the current kit. But if you have the $$ and can't wait then go all out now and be happy...
Last edited by athenG; Aug 21, 2007 at 01:00 PM.
Originally Posted by danielwebb
Been Talking to rick at STS as AthensG suggested and he's very helpful. I'm debating right now whether I should go ahead and do a built shortblock or do the VB, TQ converter and upgrade the turbo to the GT35R which rick says will spool quicker. What do you guys think?
What is the hot side AR of the particular GT35R turbo you're looking at?
Originally Posted by danielwebb
what he suggested was a gt35r-61
Originally Posted by danielwebb
I'm still new on the whole AR housing thing as well as t3 vs t4
So what you're sayin athenG is that there's plans for a twin kit drop in-style replacement? Just unbolt the old setup, install new exhaust piping that hooks up to a set of twins and they'll Y-together to the same intake piping?
That's gonna get a lil confusing come time someone uses a true dual, and with the 2 styles of intake piping out there... hmmm...
Originally Posted by taurran
When I was looking into them I could have sworn garrett offered it in .63, .82 and 1.06 AR for both the T3 and T4 turbine housings. I'd probably personally choose a T3 housing in either the .82 or .63 ar. If I really had to use a T4 turbine housing I'd definitely go with the smallest ar housing (.63).
Originally Posted by MIAPLAYA
If you want the spool up to even be comparable you'll need a smaller A/R than .63. The current STS kit runs a T4 O trim .59. Any bigger A/R and your spool up will suffer. Ditto for going to a larger trim T4. I'd be interested to see what A/R they use on the GT35 turbo. The only way its going to spool up faster is if they use the same turbine or A/R housing. If they use a T3 turbine with a larger A/R you may get a good spool up but you would need to change the flange as the STS kit comes with a T4 turbine out of box. (albeit a small T4 turbine and A/R)
Originally Posted by danielwebb
rick made it sound like the only sacrifice to be made for the gt35 turbo would be $$
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yeah I think I'm going to because I think what I would enjoy more than huge top end right now is a little more bottom and a little more top. I think the tq converter is going to help the bottom as well.
Originally Posted by Cube
Me too
I know nothin about appropriate turbo sizing... all I know is I want the boost quick and not max out the turbo
So what you're sayin athenG is that there's plans for a twin kit drop in-style replacement? Just unbolt the old setup, install new exhaust piping that hooks up to a set of twins and they'll Y-together to the same intake piping?
That's gonna get a lil confusing come time someone uses a true dual, and with the 2 styles of intake piping out there... hmmm...
So what you're sayin athenG is that there's plans for a twin kit drop in-style replacement? Just unbolt the old setup, install new exhaust piping that hooks up to a set of twins and they'll Y-together to the same intake piping?
That's gonna get a lil confusing come time someone uses a true dual, and with the 2 styles of intake piping out there... hmmm...
Is this speculation/confusion, or is there seriously an upgrade path for this?
It is just speculation... I was talking about a Drop-in Turbo that you can just do a swap with the current unit, that's all. Let us not get carried away until we actually see the STS ST go on sale
Goosegoose, how is the car going along?
Goosegoose, how is the car going along?
Originally Posted by athenG
It is just speculation... I was talking about a Drop-in Turbo that you can just do a swap with the current unit, that's all. Let us not get carried away until we actually see the STS ST go on sale
Goosegoose, how is the car going along?
Goosegoose, how is the car going along?

On my 8psi boost map, I can only build a max of 5psi.
I have a huge exhaust leak between my mid pipe and the first STS exhaust pipe that replaces the OEM muffler. I will have a new gasket for that soon which will hopefully plug this leak up.
Also, my intake pipe is seriously dented in about 1.5 inches at one point.
I can't wait to get the old setup out of there and finally put in the new intake pipes up the center. That initial design is NOT GOOD AT ALL for NYC ROADS.
I should be having all this work done on Saturday, in addition to having all the heat wrapping finished up. By then, maybe the car will be running normally again, and I'll finally be able to do some UTEC/AFR logging with MPS.
Originally Posted by goosegoose
My setup needs some serious fixing.
On my 8psi boost map, I can only build a max of 5psi.
I have a huge exhaust leak between my mid pipe and the first STS exhaust pipe that replaces the OEM muffler. I will have a new gasket for that soon which will hopefully plug this leak up.
Also, my intake pipe is seriously dented in about 1.5 inches at one point.
I can't wait to get the old setup out of there and finally put in the new intake pipes up the center. That initial design is NOT GOOD AT ALL for NYC ROADS.
I should be having all this work done on Saturday, in addition to having all the heat wrapping finished up. By then, maybe the car will be running normally again, and I'll finally be able to do some UTEC/AFR logging with MPS.
On my 8psi boost map, I can only build a max of 5psi.
I have a huge exhaust leak between my mid pipe and the first STS exhaust pipe that replaces the OEM muffler. I will have a new gasket for that soon which will hopefully plug this leak up.
Also, my intake pipe is seriously dented in about 1.5 inches at one point.
I can't wait to get the old setup out of there and finally put in the new intake pipes up the center. That initial design is NOT GOOD AT ALL for NYC ROADS.
I should be having all this work done on Saturday, in addition to having all the heat wrapping finished up. By then, maybe the car will be running normally again, and I'll finally be able to do some UTEC/AFR logging with MPS.
Great, are you using the XD-16 for you AF gauge? are you logging through the serial out of that? I need to find the damn wires so I can start logging my AF with Utec
Originally Posted by athenG
Great, are you using the XD-16 for you AF gauge? are you logging through the serial out of that? I need to find the damn wires so I can start logging my AF with Utec

I've tested it with the serial connection, and everything seems to work great. I also ran a trial with MPS 3.0 last night, and that seems to work well too.
Since I need to RMA my UTEC anyway, I am going to plug a USB cable directly into the UTEC, and see if the logging works that way.
Originally Posted by goosegoose
My setup needs some serious fixing.
On my 8psi boost map, I can only build a max of 5psi.
I have a huge exhaust leak between my mid pipe and the first STS exhaust pipe that replaces the OEM muffler. I will have a new gasket for that soon which will hopefully plug this leak up.
Also, my intake pipe is seriously dented in about 1.5 inches at one point.
I can't wait to get the old setup out of there and finally put in the new intake pipes up the center. That initial design is NOT GOOD AT ALL for NYC ROADS.
I should be having all this work done on Saturday, in addition to having all the heat wrapping finished up. By then, maybe the car will be running normally again, and I'll finally be able to do some UTEC/AFR logging with MPS.
On my 8psi boost map, I can only build a max of 5psi.
I have a huge exhaust leak between my mid pipe and the first STS exhaust pipe that replaces the OEM muffler. I will have a new gasket for that soon which will hopefully plug this leak up.
Also, my intake pipe is seriously dented in about 1.5 inches at one point.
I can't wait to get the old setup out of there and finally put in the new intake pipes up the center. That initial design is NOT GOOD AT ALL for NYC ROADS.
I should be having all this work done on Saturday, in addition to having all the heat wrapping finished up. By then, maybe the car will be running normally again, and I'll finally be able to do some UTEC/AFR logging with MPS.



