I purchased a turbo and was told it was a masterpower t70. Upon emailing bobybeach with pictures, I was told that it was not a mp t70. He said that it could possibly be a garrett gt40. The numbers on the center housing, 448315-1, confirm that this portion is in fact a garrett part. Upon looking up other turbos, the compressor housing appears to possibly be a garrett piece, but the back plate doesnt have the normal tag with the serial number. If you have any idea what It could be, please let me know. Also, while Im asking questions, where would be the best place to source a turbine and rebuild kit for this turbo?

 

I would say that it's a GT35, def. not a GT40.

 

looks like it has a t3 footprint

 

Measure the damn wheels!!!!

 

Im a newb when it comes to turbos, so what section of the wheel am I supposed to measure?

 

take compressor housing off ( the shinnie piece ) . Then measure the inducer and exducer, that will help you find out the specs much easier .)

 

Inducer = portion of the compressor wheel you see looking at the turbo inlet, Exducer = the largest outtermost portion of the compressor wheel. You'll need to measure wiht calipers or a mic, gotta be pretty close to accurate to accurately tell you what wheel it is. I'd suggest measuring the turbine wheel as well, just pull the turbine housing off and measure the major and minor diameters like the compressor wheel. Unlike the compressor wheel, the inducer is the larger portion and the Exducer is the smaller portion (part you see looking at the back of the turbo were the downpipe connects to).

~Mike................

 

Its def. not a 35R. The center cartride isn't water cooled.......

 

my 35r is only oil cooled

 

Journal Bearing GT40

-Kevin

 

Then it's not an 'R'.....or it's installed improperly

A guy I knew had a dual bb turbo that was installed w/out the water cooling and it ended up damaging the turbo.

 

interesting

 

I cant seem to find my calipers, but I did find a few more markings. On the inner lip of the compressor housing, there is "ccs67". After searching online, I found that it is a precision turbo "S-cover, 67mm .70AR PREC CCS67". Also, on the compressor wheel there are the following inscriptions in between the blades; "A", "957", and what appears to be an "I".

 

First, Im not a newb so don't kid yourself.



R in the Garrett World means Ball Bearing.

I have yet to see a water cooled GT35R. They may exist, but I haven't seen one yet.

9 times out of 10, the damage to a DBB turbo is due to oil contamination or lack of oil.

JasonDowney:

The turbo you have there is a custom built Gt40 frame, non ball bearing (most likely) turbo.

The part number you gave is indeed the garrett part number for the GT3576, and the Gt40 Journal bearing style oil cooled housing.

Chances are its a custom build from Precision turbo, as it appears to have the precision turbo back plate.

And Mods, for the Love of GOD! Can you please fix my user name?!?!?! I got in a hurry and didn't notice it untill I was trying to log in.

 

Are you just being cryptic there? Every GT35R (Gt3582R, GT35/40R, call it what you will) I've ever seen is water cooled.

 

Umm yeah, every single Garrett GTXXR has been water cooled that I have seen, installed, sold. Pretty much ALL ball bearing turbo's are water cooled (IHI, ITS, Garrett, Turbonetics, did I leave any out?).

Also, the "R" in Garrett world also means more then just ball bearing. The "R" counter part turbos generally have larger compressors and sometimes larger trim turbine wheels as well along with the ball bearings. The GTXX and GTXXR turbo's don't share the same compressor wheels in most models.

YES, thats a Precision turbo, you can tell by the back plate and the ported compressor outlet. 67mm inlet is sizable and should make good power, but you still need to measure those wheels to be sure exactly what the hell it is. Rebuilding it will simply be just any standard T4 rebuild kit, I'm assuming its a big shaft due to its size.


~Mike...............

 

+1

I have never seen a GT35R that was not water cooled.

 

How do I check to see if its journal bearing, or not?

 

Pay attention, its not water cooled, therefore its journal bearing. Moreover, Precion is a Garrett retailer, they do offer their own turbo parts (such as backplates) but the bulk of their product is Garrett based turbos. Only a few companies sell their very own propietary ball bearing CHRA's, being IHI, ITS (Innovative Turbos systems who sell dual BB ceramic CHRA's) Turbonetics (who sell their own proprietary single angular thrust/front ceramic bearing), the last 2 being Garrett based turbo's and Garrett who sells dual BB steel bearings. So, if its not a Garrett BB CHRA (which would be water cooled as ALL the af mentioned turbo manufactures) then its not a BB unit period. The only BB units I have ever seen that was not watercooled are Turbonetics special one off builds for their sponsored race teams (drag race, were the things only run for a few seconds/minutes at a time and get rebuilt frequently) and a few Garrett units, special builds as well for race teams.

~Mike...............

 

Most ball bearing turbos are water cooled as previously mentioned, although we DO make some ball bearing turbos that are only oil cooled.

A good way to tell if it's ball bearing is to look in the oil inlet to see the locking pin/oil restrictor.

Kevin