Questions for Justin...

[4G63_GSX]

There's a whole thread comparing the 3065 and 3582 in the Newbie forum right now....don't really see the need to repeat myself here.

If you're looking for a reliable 600whp turbo in journal bearing form, look at the BW S362 and Holset HX40. I'd steer clear of any Garrett T3-based journal bearing turbo for that much power- this includes the PTE HP6262. They may make the power, but they won't last too long doing so.

and what about ball bearing form, was thinking more of the HTA3082

 

[JusMX141]

HTA3082 should be just a billet version of the 3065. You'll no doubt gain some efficiency at lower boost levels over the cast wheel, but you're probably still going to be limited to around 65 lb/min no matter what because of the 30R turbine.

 

[4G63_GSX]

my build is almost complete, just a few little things to button up and it should be ready for the dyno. the last thing i need is to switch up my turbos. i currently have a turbonetics t3/t4 but have heard all kinds of things mainly not to use them which is why i was looking into garret turbos because of their durability

 

[DanGST]

Fp big t28 or evo316g for a 4g64 with a 4g63 head swap? Which is better and why?

 

[JusMX141]

I would choose the Evo III because the turbine wheel is larger and will flow more.

If you truly don't know the difference between the T28 and Evo III 16G (besides the price), you need to do a little more searching before you buy. The point of this thread is not to be an easy answer for a very searchable question.

 

[DanGST]

I knew the difference but really didnt know how it will hold up with the 4g64.

 

[Maximuscr31]

I knew the difference but really didnt know how it will hold up with the 4g64.

Same as it would hold up on anything else. The difference is turbine size, power band, and airflow. One turbo will make 300whp, one can make 400-500whp

 

[bahamian4g63]

I need a rebuild kit for this turbo, there are no other markings besides the obvious pte markings on the hot side. Any help will be greatly appreciated.

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[98GSXin]

^My gt35 compressor housing looks like yours, but I don't have a precision turbine housing. Might be a frankenstein turbo.

Justin: What vehicle did this 20g come off of?
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[JusMX141]

I need a rebuild kit for this turbo, there are no other markings besides the obvious pte markings on the hot side. Any help will be greatly appreciated.

What about the numbers engraved into the compressor outlet which are visible in the first pic?

Appears to be a SC6176S, standard 1/4" shaft. You can buy this parts kit from G-Pop for around $150.

Might be a frankenstein turbo.

Wrong.

Justin: What vehicle did this 20g come off of?

Who knows what the original application is. Looks like your run-of-the-mill TD06 20G to me.

 

[98GSXin]

Wrong.

Who knows what the original application is. Looks like your run-of-the-mill TD06 20G to me.

Sounds good. Should I just pm you about getting it rebuilt?

 

[JusMX141]

Sure, if you decide to do so. Not sure why you had to ask me in a tech thread if it was OK to send me a PM about getting a turbo serviced....

 

[VisionPaintball]

Justin,
do you normally seal the compressor housings on holsets with some type of rtv?

 

[JusMX141]

Thin bead of RTV on the center housing flange is fine. Be sure to do this after you're sure you have the housing clocked as you need it as once the RTV dries, the cover placement is basically permanent.

 

[VisionPaintball]

Thanks again,

 

[Bud92gsx]

So I have been wondering this for a while..

With holsets..In order to run the stock housing or any of the same style flanged housing you need a different 02 housing in order to make it work.?

I know some housings are direct bolt on, the mits flanged housings..

So what is needed in order to run a holset on the 4 bolt non BEP mits style housings?

 

[JusMX141]

So what is needed in order to run a holset on the 4 bolt non BEP mits style housings?

Custom? I'm not sure what you're asking here.

Not many people make aftermarket o2 housings for our cars because the manufacturer can't take into consideration all of the possible manifolds the buyer is using which places the turbo at different angles...some which wouldn't line up to the flange on the downpipe whatsoever.

Once you abandon the OEM platform, you might as well consider requiring a custom o2 housing.

 

[Bud92gsx]

Let me try an elaborate..

Ok the only bolt on housings for holsets its the mits flanged ones correct?

Now go to non mits flanged housings..Like for instance the stock holset style..And the others I have seen posted which look the same style..So for those, people use a custom o2 housing that goes to the DP?

I have seen a few different manifolds for placement and such..Just wondering how they maye the turbine housing to the DP?


Thought about it..It probably is custom or much different then stock based equipment...Why do you need stock based equipment, you don't..But it makes things easier to put together..

Did that help or do I sound more stupid when I tried asking the first time?

 

[1990AWD]

I think you can get bolt-on housings for Holsets in both Mitsu and T3 flanges (the flange to the manifold) and they have the same bolt pattern to run a stock DSM style O2 housing. Holset housings (what will have come factory on the turbo) will be most likely a T3 or T4 manifold flange in single or twin scroll. They also have different downpipe mounts (diesels won't have an O2 housing, just exhaust piping straight from the turbo), some are bolt flanged, and some are v-band.

If that makes sense Bud.

 

[VisionPaintball]

Thin bead of RTV on the center housing flange is fine. Be sure to do this after you're sure you have the housing clocked as you need it as once the RTV dries, the cover placement is basically permanent.

Do you always do this? I don't want to make it permanent if I don't have to. After all, it probably worked fine on the dodge it came off of.

 

[JusMX141]

Not in all cases; I do seal the cover on Dave's turbos because I don't want any leaks....however I don't seal customer turbos unless they're already been installed / clocked as required to fit their piping because like I said once the RTV is dry, you ain't clockin' shit.

And Bud, you make my brain hurt more than necessary sometimes. Refer to the last sentence in post #567 for reinforcement of your question.

 

[VisionPaintball]

Haha, rtv it is. If Dave has it, it's gotta be good!

 

[NOSLO2PT0]

Justin, here's one for ya. What turbine housing comes with the Greddy 18G? It's a mitsubishi turbine housing, but it's super tiny. The footprint doesn't even look like a T3. T2 maybe? The opening from the exh. manifold is only 1 15/16" x 1 1/2". Outer dimensions of flange are 3 5/8" x 2.5". Numbers on the housing are: 378-10100 080 DUCM. It's a 5bolt discharge, similar to a Ford T3, but much smaller.

 

[JusMX141]

T2 8cm on the non-DSM bolt-on Greddy 18G's.

I *believe* the DSM bolt-on Greddy 18G's came with the rare 8cm Mitsu housing as well...I've now seen two that came with them attached; a handful of others which had either 6cm or 7cm housings so apparently the previous owners robbed the 8cm goodness.

 

[NOSLO2PT0]

Why does the 8cm dsm housing seem so much larger if this is in fact an 8cm housing as well? Everything about this turbine housing screams I WILL CHOKE YOUR AIRFLOW!