anyone use a divided T4 1.06 exhaust housing on a GT3582?

[TBDevelopments]

just running some numbers through my head for the turbocharger i want to run on my car.

 

its aimed as a straight based car, nothing to insane and fast responce so going with the GT3582r, or GTX model.

 

i have been speaking to Forced Performance as awell about possibly there GT3586r but i was more drawn to them because of the Divided 0.82ar T4 housing that i planned to run on a ported cast manifold and quick spool valve setup. But i've just been informed they no longer make there divided T4 in 0.82ar

 

so back to the genuine Garrett gt3582r but i'm really mixed mines between the 2 housings really open to me. Do i just go with a normal single entry 0.82 like alot of people on here have gone for, which good results.

 

Or now i can't go with a divided 0.82 the other option still being made is the 1.06 now this i would say is to large but i wanted to go with a quick valve setup. But not sure if the 0.82 would just spool quicker anyway.........

 

i know the 1.06 is basically a 0.53ar until the other side of the housing opens up, but it doesn't always quite pan out like that does it lol

 

At some point you have to go from crunching numbers to actually testing it so was wandering to save me alot of money if someone has already done one of these setups and can report back on the results, spool etc etc

 

many thanks

 

Tim

Edited August 13, 2013 by Littler (see edit history)

[Nic]

I ran a GT3582R on mine (dyno graph in my garage HERE), it made positive boost at just over 2K rpm and once moving power was almost instantaneous. On a turbo of this size I think a quick spool valve would be pointless. Your biggest issue will be traction, the turbo comes in so early that getting the power down in the first 3 - 4 gears can be fun!

 

I'd like to see a build using a GTX3582R, that'd be my turbo of choice for the ultimate fast road setup.

Edited August 13, 2013 by Nic (see edit history)

[Alex]

I'd echo the GTX3582R...the cast manifold alone would be good. They aide spool and don't break so easily, but are harder to come by.

Edited August 13, 2013 by Alex
Actually read the first post a bit better. (see edit history)

[Littler]

A ported treadstone manifold with a gtx3582 will have great response, but I think fitting a quick spool valve wouldn't be necessary for that sized turbo?

[Rob W]

I've recently been looking for what turbo to go for with my HKS kit. As the HKS is a divided mani, I've been looking into the Precision 5862 with a divided .84 a/r which will be similar to the GT3582R. That's the smallest precision they do with the divided a/r. Next in line after that would be the 6262.

[Nic]

I'd echo the GTX3582R...the cast manifold alone would be good. They aide spool and don't break so easily, but are harder to come by.

 

If I was to do another build I'd see if I could buy the Powerhouse Racing Street Torque Kit - which uses a cast manifold - without the turbo, then use a Garrett GTX35R.

[Guigsy]

I've recently been looking for what turbo to go for with my HKS kit. As the HKS is a divided mani, I've been looking into the Precision 5862 with a divided .84 a/r which will be similar to the GT3582R. That's the smallest precision they do with the divided a/r. Next in line after that would be the 6262.

 

Mines a gt3582 on a devided manifold. Works well enough

Couldn't tell you if its any better or not though.

 

Hope that helps

[Wez]

I would go for a single scroll housing, I run a divided on mine with a cast manifold and there are small cracks in the divider, you could possibly knife edge them but that may make it weaker.

[TBDevelopments]

ok cheers guys.

 

this information about traction and what its like to live with can't be seen with numbers so glad i asked.

 

The manifold i will be using is a treadstone cast unit.

 

The kit i will be building will either be using a GT or GTX 3582r with single scroll 0.82ar exhaust T4 now going from peoples feedback, so would be very similar to the Power house racing kit someone posted up, but I'm full setup for stainless steel/ alloy fabrication so i'll be making everything myself

 

i had planned to use a Tial MVR 44mm wastegate. Anyone has issues with flow or should i consider stepping up to a 60mm. Again number can only tell me so much on this, after real word experience.

 

Tim

Edited August 13, 2013 by James (see edit history)

[Wez]

I use a HKS GT 60mm on my cast setup and never had any boost creep issues, my cast manifold is an old Turbonetics that was modified by Induction Motorsport so give a larger wastegate outlet, the stock units did suffer with boost creep.

[TBDevelopments]

oh i know the cast manifold and treadstone versions did suffer from boost creep because of there casting but i intend to open up the wastegate port to what ever size wastgate i go for. the manifold will be extensively modified anyway.

 

its the size of the wastegate which was concerned about. Saying that just noticed the PHR kit is using exactly the same wastegate i plan to use.

 

Tim

[Nic]

I used a 60mm HKS wastegate with the GT35R.

 

The wastegate opening on the Treadstone manifold is very small and will need opening out. dandan is using a Treadstone manifold, have a read of his build thread http://www.mkivsupra.net/vbb/showthread.php?194439-Dan-s-Supra-Project

[Rob W]

Mines a gt3582 on a devided manifold. Works well enough

Couldn't tell you if its any better or not though.

 

Hope that helps

 

I wasn't implying there is anything wrong with the GT3582 I was just stating if Tim is really set on a divided a/r around .84 the PT 5862 is meant to be rated the same sort of performance. There is so many options around now, I hope I get it right when I choose!

[TBDevelopments]

yeah i've seen dans, its a nice setup. A similar to what i'll be doing with my treadstone manifold. i know there a good base but not under any illusiions that they don't need a little bit of work to make the most from them.

 

Well i was only looking at divided to use the quick spool valve, but seeing peoples results i think i'll just keep it simple and go with a single 0.82 instead. Last thing i want to do is find all the parts and then find i'm just getting compressor surge because the QSV is bringing it in to quickly.

 

Now divided QSV on a gt4088r or single 0.82 gt3582r is the other decision lol

[TBDevelopments]

Mod edit.

Edited August 14, 2013 by James
Alluding to trading. (see edit history)

[Wez]

I wouldn't bother with a QSV at all, unnecessary complication and something else to go wrong, just size up the turbo for your needs and keep it simple

[TBDevelopments]

i've played with the QSV on 3sgte engines and it does actually work really well, gives it that low down torque it needs for pottering around town when you have to.

 

but from what people are saying about how quick the gt3582r on a single 0.82 housing spools i don't think its needed.

 

People are saying positive boost from 2k onwards with 1 bar of boost from i'm guessing not much after 3k thats going to make a perfect street setup. Anything over 500bhp is a bonus for me really, ideally like equal torque.

 

Was planning on what 1.5bar on stock bottom end? seems alot of people are doing that and being very reliable

 

Tim

[Guest Evlc36]

Old thread, but I am running a GTX3582R w .82 T3 Single Scroll on my VVTi 2JZ (JZS161 Aristo)

 

I make 565whp through a built A340E 4 speed automatic at around 1.5bar - I do have HKS 264 VVTi cams, but engine is stock apart from that.

 

Positive boost is seen at around 2k RPM, and am up at full boost at 3500RPM or so - extremely versatile turbo, and makes it a pleasure as a daily driver, traction is a bit iffy in first, but due to the epic gearing of the A340E, no issues putting power down from 2nd onwards.