I went out to meet a guy that was selling a Garrett 57 trim turbo (rebuilt). The guy wanted 300 for it. When got there and got a good look at it it was clear it wasnt a 57 trim. I ended up telling the guy i wasnt interested but offered him a 150.00 bucks for it. After some pacing he accepted my offer. I went home and ripped it apart to try to find out what it was and hopefully get some help from you guys.










I took it apart and measured the inducer and exducer and found the trim on the compressor side to be 58 (not sure of accurate my harbor freight caliper is) and on the turbine side to be 77

Here are the specs that I Have found and maybe you guys can tell me what this turbo is.

Compressor housing
Inlet 2.5 inches
outlet 2.0 inches
A/R 60
Says M38 on the housing. Cant seem to find out anything on what this means or what it is. I see the Garrett 57 trim i see on the internet have m24 on the housing.

Turbine housing is a twin scroll
outlet is 2.5 inches
turbine wheel trim is coming out to be 77.
A/R 1.32 Isnt this large or is it only cause its a twin scroll?

So any ideas what this could be?

here are some pictures of the tear down.

 

So i am left with a few questions.

What turbo is this or did someone just slap these housings together?
Can the compressor housing be held on with bolt and washer like in the picture?
What does M38 mean?
What the hell is up with the exhaust outlet. There isnt any where to attach a down pipe. He said it was a v band but it clear in the picture its not.

 

it looks to be slapped together..... he wasnt running that exhaust housing that forsure it would be a vband but you need to get the attachment welded on there and youll be strait..... how much did you pay if you dont mind me asking? is there any PN or SN on it thats the easiest way to search it

 

well i see the PN for the housing but if thats the only one on there then its going to be hard to identify what it really is

 

looks like it come off a diesel..

maybe Shodan will chime in shortly

 

Thats what I was thinking or maybe an ebay turbo with a garrett compressor housing. I thought I had a good handle on which turbo is which but now i see i have alot to learn!

 

I checked the pat no. it seems just to be the patent on the twin scroll housing.

 

I was going to say the same.

Looks similar to the one on my diesel....

 

yeah but the older powerstroke turbos have 4 bolt flanges right?

 

Thats a huge a/r on the exhaust side. I dont think its going to do much on a honda maybe a v6 or v8. Looks like a diesel turbo, I think Chevy 6.5's had a t4 side for awhile

 

edited for correctness...

That's a compression fit exhaust housing. Older diesel turbos old skool HKS/Greddy setups utilized that design. The compressor housing is missing the (3) clamps. I might have some in my parts pile.

Measure the wheels again and post the info.

Compressor:
Inducer - smaller diameter
Exducer - larger diameter

Exhaust
Inducer - larger diameter
Exducer - smaller diameter

If you want to do the math yourself the equations are:
Compressor trim = [(inducer)(inducer)/(exducer)(exducer)]x100
Exhaust trim = [(exducer)(exducer)/(inducer)(inducer)]x100

The DP compression fit flange is difficult to find and the adapter to use a normal flange or modern v-band flange is not cost effective to purchase. You might want to find a smaller ex housing. My guess is a T04E (57 trim compressor with a 77 trim blade for a P housing.

 

I'm using a turbo with a divided housing like that. Only diffrence is mine is 1.15 ar its hard to sell those housings so what I did was purchase the v band flanges from atp and welded one side shut but at an angle... The turbo spools pretty fast and holds boost well on my gsr. I have since put pistons and rods in my motor so ill be maxing the turbo out before I swap it for a more efficent turbo..
I say since you got it so cheap run it till the seals blow..

 

*Ding* *Ding* *Ding* *Ding* Straight T04E with 1.15 incomplete v-band as a larger diesel application.

 

Compressor
Inducer = 2.95
Exducer = 2.19

Exhaust
Inducer = 2.86
Exducer = 2.52

 

I can weld a v band on to the exhaust outlet no prob thats what i was planning on. Will this turbo be worth running on my gsr or is the exhaust side to large? Also can i runn the compressor housing with the washers or do i need to get the little bracket things to hold the compressor housing on?

thanks guys for the insight!

 

Swap to a t3 flanged turbine housing made for a P-trim wheel.

The washers are an old school way of keeping the housing bolted to the backplate, but you can also use the bracket version as well. They both do the same job.

 

If you want a T3 housing, I have an AR.63 and/or AR.82 that you can have. You just need to pay for shipping.

Compressor is 55 trim and the exhaust is 77 trim.

 

Wow yeah that will be awesome. Which a/r do you think would be better for my gsr. Its built minus sleeves i wanted to run 20 pounds of boost. It will be a geared for the strip but is still in full street trim. Planning on running FIC 1100 injectors if that helps any. I will shoot you a pm also

 

He'll need a .63A/R made for a P-trim wheel. the standard one will not fit from the T3/T4 standard version

 

Where can buy a new exhaust housing for this turbo?

 

Depends upon the cartridge. Best to send it to a Garrett dealer so they can test fit and find the right housing for you. PM me for some places to do it. If you try to get cheap and do it online, there's a chance you'll buy a $150-$200 piece of equipment that won't fit.