Does anyone know how to tell the difference from a t28 vs t25, without having the two side by side, and also whether a t28 is ballbearing or not? Ive brought a turbo cheap, which I know came from a RWD Sr20det, but I'm not sure of the year as I believe post 1996 came with Ball Bearing center. Its got m-24, and a/r .80 on the compressor. Its got a bolt on air entry on the compressor, as oppossed to the pipe which the air intake pipe slips over on the t25. I could post some photos if nessesary, but ive got to set up somewhere to post to.

Originally posted by kiwi_nx-r
Does anyone know how to tell the difference from a t28 vs t25, without having the two side by side, and also whether a t28 is ballbearing or not? Ive brought a turbo cheap, which I know came from a RWD Sr20det, but I'm not sure of the year as I believe post 1996 came with Ball Bearing center. Its got m-24, and a/r .80 on the compressor. Its got a bolt on air entry on the compressor, as oppossed to the pipe which the air intake pipe slips over on the t25. I could post some photos if nessesary, but ive got to set up somewhere to post to.

Pull the part numbers off the name plate.

If it is a 0.80 A/R compressor housing, it is a T25. It is probably journal bearing... basically the same thing as a Bluebird turbo

OK....... the plate on the center part has the code:

wj 0723j 14411-50f00 486113-1

like you say, the compressor outlet points towards the block, so I guess I will have to rotate the housing. I would be very surprised if it is a t25, as the guy I got it off is pretty genuine, he does quite a bit of motor sport. The engine it came off is fitted to an RX-3, which is used for targa rally run here each year.

Originally posted by kiwi_nx-r
OK....... the plate on the center part has the code:

wj 0723j 14411-50f00 486113-1

like you say, the compressor outlet points towards the block, so I guess I will have to rotate the housing. I would be very surprised if it is a t25, as the guy I got it off is pretty genuine, he does quite a bit of motor sport. The engine it came off is fitted to an RX-3, which is used for targa rally run here each year.

Should be 466113-1, not 486113-1.

It's a T-25. I'm pretty sure its journal bearing, but I won't be able to confirm that until Monday.

Should be 466113-1, not 486113-1.

So are you saying that a 466113-1 is a T28 or is it just a T25. I defintely need to know that.

Ok.... now I'm pissed off..... this turbo sholuld have definately come from a s14 silvia, which a book i have says they all came with t28, if this turbo I have here is a t25, then someone is pulled a nasty on me. I want to confirm this totally before I call and accuse him of selling me something other than what he advertised. I think I probably need to find someone here who can visually confirm what it is. I already have a t25, so its going to be shit all use even if it is a differtent flow or something. It definatly looks diferent from my t25, just peering at it from under the car, it has diferent casting markings on the housings, but i guess thats just diferent year turbos any way....:confused:

Originally posted by kiwi_nx-r
Ok.... now I'm pissed off..... this turbo sholuld have definately come from a s14 silvia, which a book i have says they all came with t28, if this turbo I have here is a t25, then someone is pulled a nasty on me. I want to confirm this totally before I call and accuse him of selling me something other than what he advertised. I think I probably need to find someone here who can visually confirm what it is. I already have a t25, so its going to be shit all use even if it is a differtent flow or something. It definatly looks diferent from my t25, just peering at it from under the car, it has diferent casting markings on the housings, but i guess thats just diferent year turbos any way....:confused:

The turbo that you have is not from a ball bearing T-28 turbo. As far as I know, all S14 Silvias come from the factory with a ball bearing T-28

I rang the guy today, told him it was a t 25, he was real good about it and said I could get my money back. He was told by a turbo expert who looked at it that it was a t28, but the bulllshit he came up with when he spoke to him again, leads him to believe the guy doesnt know shit..... sooooo..... t28 turbos are in hot demand here ***, he has had tons of calls. One guy wanted to meet me where I was picking it up from, and try to outbid me for it! He told him no becasue he had promised it to me as I rang first. He has another guy with a Pulsar GTI-R, with a blown turbo, he wants to selllthe car, so he wants to but the t25 off me just to get the car running. Is it likely that this turbo Ive brought is better than a BB turbo, becasue I was thinking about offering to give him my T25 and BB manifold, to get his GTI-R manifold, so when I do get a t28 I wont have to worry about fitting it to the BB manifold.... then fit the newer t25 for the time being.....????

Ok, now this gets complicated..... got a call from Nissan NZ. I quoted the serial number to him, and he looked it up as being from a NZ new 200 sx/silvia, It is definately a t28, I asked him 3 times if there could be any doubt in this, and he said no, by those numbers it is a T28..... so there we go. Just wondering about your interpretation of these numbers as being a t25, could this be a difference between US and ***/NZ specs/numbers???? I think all I need now is a GTIr manifold, as the discussion went in another forum. Might make a steam pipe one.....

I was told it was a t28 as well and everyone wants to doubt me and what i was told you cant call garrett and verify a nissan part number such as you cant call nissan and verify a garrett number. so here you go trav sold you a t28 not a t25. O yeah and Kiwi-nxr i was able to spin the turbo by lossening the 4bolts on the exhaust side and putting two pry bars in the outlets and pushing, you only have to loosen the bolts not take them out..... be careful though they might be frozen in there, use a 1/2 inch wrench and you'll be on your way to have the outletr facign upwards instead of facing the block take off the actuator and it will bolt up to one of the original holes for the screws alright or have it TIG welded on to the compressor.... PM or post if you have any questions........:D

Well Rob..didnt you just verify the the garrett number?hmmmm




Larry

Garrett Part number: 466113-0001
Nissan Part number: 14411 50F00

Compressor: 54.36mm exducer diameter 60 trim 0.80 A/R housing
Turbine: 53.0mm inducer diameter 62 trim 0.64 A/R housing

Journal bearing CHRA

That is the turbo you have. It is not a T-28, it is a straight up T-25. I don't care what anyone else tells you, there is basically a zero percent chance that the turbo you have in your hands is a T-28.

If you don't believe me, pull off the compressor housing and measure the wheel diameter yourself.

Originally posted by sr20lbmonster
I was told it was a t28 as well and everyone wants to doubt me and what i was told you cant call garrett and verify a nissan part number such as you cant call nissan and verify a garrett number. so here you go trav sold you a t28 not a t25.

Quit posting your opinion and trying to pass it off as fact. You don't know jack about the capability of Garrett and Nissan to cross reference part numbers, so quit posting conflicting information when you have no facts to back it up.

rob just admit you were wrong instead of telling this guy to open up the turbo and measure things in there he called Nissan and they told him it was a t28, i had it next to my t25 and it is bigger,
I dont understand just because your a moderator why that makes you some kind of turbo god, you know all and tell all when it comes to turbo and the only true true true true way to verify that part number is to do what kiwi did call nissan not garrett.... Or call nissan of japan and tell then in japanese what is on the turbo...
done ban me or nothing for writing what i wrote but u are giving out wrong info and these kids out here believe everything that is said on the internet. and in this case i bought a t28with the same markings as kiwis and sold it to ruthless and now hes sayign its not a t28 thatnks to you after i broke my ass getting it rotated for him....
dont be mad rob

yeah well again your wrong i am not posting opinions cause i spoke to simon(suckit) and he explained to me that the a/r.80 on the compressor denotes that it is a t28 w/ 260whp capabilities and his old one (off the gti-r motor) with the a/r.62 has 290 whp capabilites. so call it what u want but this was verified by a bonified nissan head that has dealt with turbos that knows what he is talking about unlike soem people on here, he was the one that told me you cant verify part numbers off a turbo with garrett.

Well I don't want to knock anybody at all, but I thought that the T-28's all came with the bolt on thing in the intake side, and the t-25's didn't, but I don't know very much. I know Rob Cadle knows a lot about Turbo's, and I think he might be a moderator because he is very knowledgable on Turbos and not the other way around.

Jose...

hey may know a lot and may never be wrong but he is wrong this time. He even goes on saying it is zero% chance its a t28 when Kiwi verified it with nissan NZ.
admit you were wrong, no one will think less of u, everyone makes mistakes, it takes a bigger man to admit they were wrong instead of posting irelevant part numbers bla bla bla,

Originally posted by sr20lbmonster
rob just admit you were wrong instead of telling this guy to open up the turbo and measure things in there he called Nissan and they told him it was a t28, i had it next to my t25 and it is bigger,


Who did he call at Nissan? The product engineer for the platform? The guy who spec'd the turbo? Who? Where did this information come from. Come on, you put this out there. Reveal the source. I want to know the position of the person 'At Nissan' who told him that this turbo was a T-28.


I dont understand just because your a moderator why that makes you some kind of turbo god,


I'm not a turbo god because I'm a moderator. I'm a moderator because I'm a turbo god :D


you know all and tell all when it comes to turbo and the only true true true true way to verify that part number is to do what kiwi did call nissan not garrett....


Bullshit. That turbo has a Garrett part number on it. I have the engineering drawing right in front of me that was used to manufacture the god damn thing. I think that makes me the supreme authority here. If you have access to a more reliable source of information, I'd like to see it. Heresay doesn't cut it.


u are giving out wrong info


I don't think so.

If it doesn't have a 60 mm diameter compressor wheel, then it's not a T-28.

If it does have a 60 mm diameter compressor wheel, then it is a T-25 that was modified into a T-28 by someone in the aftermarket. You can bank on this: Turbocharger part number 466113-0001 did not leave the factory as a T-28. Period.

Originally posted by sr20lbmonster
yeah well again your wrong i am not posting opinions cause i spoke to simon(suckit) and he explained to me that the a/r.80 on the compressor denotes that it is a t28 w/ 260whp capabilities and his old one (off the gti-r motor) with the a/r.62 has 290 whp capabilites. so call it what u want but this was verified by a bonified nissan head that has dealt with turbos that knows what he is talking about unlike soem people on here, he was the one that told me you cant verify part numbers off a turbo with garrett.

First off, the 0.80 A/R on the compressor housing doesn't denote that the turbo is a T-28. A stock Bluebird turbo has a 0.80 A/R compressor housing, and it is most definitely NOT a T-28.

Second of all, a GTi-R turbo has a 0.60 A/R compressor housing, not a 0.62 A/R compressor housing.

You're posting all kinds of shit that's wrong. You need to get your facts straight. I don't care what Simon told you... it's wrong.

Fine fine fine, ok mr i am a moderator cause i am a turbo god, i cant mess with you, i dont want to get banned from the site which i know you have the power to do. i really dont care what kind of schematics for what ever turbo your talking about. The fact of the matter remains that when you are corrected you dont take it to well and start throwing around big part numbers and blueprint this and blue print that. Let me just ask one question do you think that simon(suckit) is a knowledgable person as far as turbos for nissans is concerned or does he fall under the realm you made up of not knowing shit which you put me in?