Turbo question??

[Da5dime]

I have just purchased a CA18DET for my 71 510 and I was wondering what turbo I had on it? I know they come stock with a T25 but I think that it looks a little big for a T25 and I am no turbo expert. The turbo says Garrett A/R 60 M24 1-2. I just want to know what I got. If anyone has some info or can point me in the right direction, it would be much appreciated, thanks!

[dattodude]

too hard to explain...what are the numbers on the tag on the center housing?

[The_Chosen_One]

Congratulations you most likely have a S15 BB turbo aka GT28R (GT2560R).

The S15 turbos usually had the M24 1-2 markings on the compressor housing, while the S14 (identical to the S15 but only a few were ball bearing) had M24 1-1 on the compressor housing.

If you give us the serial number near the oil inlet we can let you know for sure exactly which one it is, but I believe its mostly a S15 turbo.

I take it your turbo looks like this.

[Da5dime]

I will take a picture and get a serial number if I can, thanks for your help so far. And my turbo looks similar to that but says 1-2.

[Da5dime]

Alright here is a pic of the turbo, it looks very similar to the one pictured above.



The serial reads as follows:

ZB 0105J1441-54C00465997-4A

Let me know its a winner, thanks!!

[themadscientist]

Pulsar or S14 turbine. Mine looks like that but I didn't have the port in the compressor housing for the boost signal. Either way score!

[Bwana]

An excellent turbo on the CA, you're in luck man!

[Da5dime]

I am still curious if this is a ball bearing turbo or not?

[The_Chosen_One]

nice, I'm 99.9% sure thats a GTi-R T28. Its a fun turbo I have one myself. Can you take a pic of the wastegate bracket? I wanna see if your bracket is modified.

The GTi-R T28 is a non ball bearing turbo and has a .86 A/R turbine housing. Many speculated that this would be laggy on the CA, nope the lag is comparable to a GT28R which I had before switching to the GTi-R T28. I like the GTi-R T28 more than the GT28R and its rebuildable if something goes wrong unlike the ball bearing turbos.

Heres a pic of my turbo as you can see they are 100% identical.

[Da5dime]

Here you go if you need a different pic let me know.

[ca18det240hatch]

congrats man, you have a ball bearing t28

[The_Chosen_One]

thats not a ball bearing T28 its a regular journal T28. I have the same turbo its from a Sunny GTi-R with the SR20DET.

The serial number he posted was missing a number its 14411-54C00 and if you just put that in google it clearly shows thats the part number for a Sunny GTi-R. Not to mention his serial number matches mine which I specifically ordered a GTi-R T28 turbo.

[The_Chosen_One]

Here you go dime this is a thread I made a few months ago. This might answer some questions if you still have some.

zerothread?id=238614

[johngriff]

So, is your ecu/injectors up to the task.

[Da5dime]

I'm guessing so that was a running engine that the turbo came off of, but I planned on upgradeing that stuff anyways.

[Da5dime]

Yeah you are right, the serials are exactly the same and my turbo looks identical to yours. I am happy now I don't have to buy that turbo. Thats the one I was looking at getting for an upgrade. The shaft has next to zero movement, and spins freely.

[ca18det240hatch]

thats strange....because it has that bulge in the compressor housing where the housing itself bolts on, and as far as i knew that was to make room for the ball bearing cartridge. I dont know 100%, but mine had the same bulge, looked identical, and it used to keep spinning for like 30 seconds after i shut the car off...which i was told was charachteristic of ball bearing turbo.

[Da5dime]

thats strange....because it has that bulge in the compressor housing where the housing itself bolts on, and as far as i knew that was to make room for the ball bearing cartridge. I dont know 100%, but mine had the same bulge, looked identical, and it used to keep spinning for like 30 seconds after i shut the car off...which i was told was charachteristic of ball bearing turbo.

I did do a little research on google and the part number is for a GTi-R, at least all of the places I found. I also checked with other forums. All have come up with GTi-R's do not have ball bearing turbos.
Modified by Da5dime at 1:40 PM 6/4/2007

[johngriff]

They also have 440's and alot of tourqe.

You will need tuning if you are not chipped.