89 300zx Stock turbo
 

What turbo came stock on a 1989 300zx, I just pulled on in the junkyard today, has a T3 flange off the mani but it dosen't look like a T3, maybe looks like a 14b I'm not sure I am uploading some pics right now...I did some research and it says they cam with a .60/.60 but this turbo is no way close to that size, I have one here and compaired them, anyone have an idea...and it is also for sale came off a auto with 113,000 miles has little shaftplay should tighten up with oil...forsale thread should follow when i get pics up, thanks...Matt

Re: 89 300zx Stock turbo
 

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Re: 89 300zx Stock turbo
 

There were two turbos offered on the older z's depending on the year of the car. What you have is the same thing I am running on my old ass 88 prelude. The funny thing is I have heard two different things about this turbo. Most people I have spoken with think it's a t25 however I conferred with a man selling the same turbo on Ebay listing it as a t28. I emailed him stating that I thought he was mistaken and he had a t25. He responded he had been rebuilding turbos for something like 10 years and knows his ----. Go figure. I just don't know for sure. I believe it's a .42 / .48. I do know that is spools quickly and seems to perform well although I am curently only running 6psi. I still have to tune.
The other turbo offered on the z's was a t3 with a .60 something a/r on both sides.
If anyone can show some documentation stating this is one or the other I would love to see it!

Re: 89 300zx Stock turbo
 

Thanks...I wonder if anyone else has some info i searched google for like an hour and didn't get any good info...one site said they had a T3 .63/.60 which as later changed to a T25...does a T25 have the same flange as a T3? I will try and get some pics of this side by side with a T3 the only similarity is the flange of course this has the nissan Dp flange...the turbine wheel is smaller than my any of my T3s but this was on a V6 so I assume it shold work fairly well on a 4 banger, well unless nissan just gave the car a tinny turbo, i though the TT had T25 but this is wierd...hmm this might work well for a TT setup, use this to spool a larger turbo, anyways thanks for the info

Re: 89 300zx Stock turbo
 

I would sy a T25. Looks a little small and not like the 2 60/63 Nissan t3s I have. Plus they stopped putting the 60/63s on in like 87 I think.

Re: 89 300zx Stock turbo
 

yea i have a .63/.60 nad sat them side by side and there is a big difference, i believe the 89 300zx was around 200hp and this turbo should be able to support up to 300hp, I'll have to look up some specs for a t25 to see if they match, and just an interesting fact apparently the vg30et could hold together up 400hp in stock form, i though that was kinda cool, when i was working on the car other than it being a huge pain in the ass it was loaded with features, power leather seats with every adjustment you could think of, adjustable suspension..tons of stuff..if anyone needs parts from it i can go back and see what eft it looked like it was fresh and well the body wasn't good it had a sticker that said runs and drives so i think it is mechnically ok, thanks for the info guys

Re: 89 300zx Stock turbo
 

I also hear they have a t2 CHRA instead of a t3.

Re: 89 300zx Stock turbo
 

I had a 84 turbo they are so loaded with features.... digital EVERYTHING.... so sweet... I miss it.... I believe it had the t3 turbo on it.

Re: 89 300zx Stock turbo
 

that turbo looks familiar. come on guys.. I swapped the exhaust housing for a .63 garret (because of nissans dookie dp flange) but it came with a .63/.60. My buddie had it on his built d and ran a 12.1 at 117 and 19psi. its on my car now and i love it! spool isnt late at all, but i also have a straight pipe from the dp to the back of the car. buy that turbo, it ------- rocks. If you need a dp flange made for it, i work at a cnc shop now so i can make you one from my old housing. pm me

to clear things up, the next generation 300zx was a twin turbo 6cyl, so it did use 2 t25's. the flange looks the same as a t3, but its much smaller.

Re: 89 300zx Stock turbo
 

Ok, so here are a few pics of this side by side with my .63/.60, notice a difference...i don't think you could swap these exhaust housings, just look, this isn't close...

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https://i28.photobucket.com/albums/c...lboss/Pic2.jpg

https://i28.photobucket.com/albums/c...lboss/Pic3.jpg

Re: 89 300zx Stock turbo
 

maybe you should try swapping it instead of taking pictures and saying it wont work. i have a volvo .63 exhaust housing on that EXACT same turbo. dont say it wont work

Re: 89 300zx Stock turbo
 

If this was a .63/.60 from a 300zx yes you could swap the housings but this can't be look at the pictures there is a huge size difference look at the turbine wheels the nissans is half the size of the garret...I can just look at these and tell you it won't work properly, some infor I've been coming across says this is probably a T25

Re: 89 300zx Stock turbo
 

what he has is a t25, cause i've pull a t3 off a nissan and it looks bigger, same as the thunderbird that came with t3 60.63, i switch the t3 compressor housing off the thunderbird for the nissan t3, easy to work with since the thunderbird had a long outlet from the compressor housing

Re: 89 300zx Stock turbo
 

But again, how do you know it isn't a t28? My buddy has a couple t28's from a skyline and they aren't any larger in size than this "mystery turbo" we have all been discussing. I know the compressor on both is a .42 a/r .....not sure about the turbine but I think it's a .48 on the mystery unit and probably the same or close on the t28.
I'm still looking for documentation as proof of what this thing is. If someone can provide just that then please do.

Re: 89 300zx Stock turbo
 

www.z31.com

If it's from an 88 onward, it's a T25. 88 and prior had 60/63 trim T3s. TT Z cars have T22s, J. Davis has mentioned these are by and large the same as a T25, but I havn't looked into it. I had what was supposedly an 89 turbo beside a KKK K26 off an old 5 cyl. Audi, was pretty much the same size, and that compressor could flow quite a bit of air, so I've never been entirely sure of what it was.

T28's come off of JDM spec Silvia's or something like that, and possibly some other Nissans. Joeseph Davis seems to know his Nismo ---- more than most, shoot him a PM.

Re: 89 300zx Stock turbo
 

THAT THERE IS A T25 !

Re: 89 300zx Stock turbo
 

I agree with this man.

Re: 89 300zx Stock turbo
 

I need a compressor wheel from a T-25 or a 15G. Let me know if you find any you wanna sell, Or a complete for the right price?

Re: 89 300zx Stock turbo
 

Yea everything i can find says T25 so thats what i am gonna say it is...NAsucks I am selling this turbo pm me if you are interested in it has very little shaft play, only the kind that tightens up with oil, let me know, thansks for all the info guys

Re: 89 300zx Stock turbo
 

Yes, the 84-87 300zx had a t3, but 88-89 models had the t25.

Re: 89 300zx Stock turbo
 

Can anyone point me to an authoritative source from either nissan or garrett that will throw all doubt to the wind as to what this turbo is? Every man and his brother can say it's a t25 and it very well may be (and probably is) but I would like some hard proof.

Re: 89 300zx Stock turbo
 

i cant imagine that they would put a t25 on a ------- v6. thats just way too small, even by factory standards.

Re: 89 300zx Stock turbo
 

Yeah I feel the same way. Seems like such a restriction. Maybe not when boost levels are low......eh

Re: 89 300zx Stock turbo
 

The T3 wasn't any better.

The .60/.63 300ZX turbo is pretty pimpy. Spool by 2500 rpms on an LS, 300 whp capability, and it doesn't have the faggot bolt on compressor inlet/outlets.