I went to TEC turbo engineering corp. In Golden, and was told that I should get a t28. He told me this would support 290 hp and spool around 3200 rpm. I was quoted at $750 for the turbo and $340 for an HKS manifold. Does this sound like a good way to go?

 

What motor is this going onto? The T28 is off the SR20DET Silvia 95+, correct? If they are good for that car, it should be good for most cars. They can support around 320 hp. But once again we need to know which car to give a better answer.
-deepsi




[Modified by DeepSi, 7:22 PM 8/27/2002]

 

i ahev at3/t4e turbo, really nice. the t28 turbo is out of an old 300z tt right? yes a t28 is nicein that car because theres 2 of them. as for being a single id get the t3/t4 or t3 super 60;

 

This will be on a b18a. He said it was a new turbo, not sure who makes it. Know any specs on it?

 

I feel like such an idiot...

 

Currently I know of two T-28 on stock applications:

Nissan silvia s14/15 Garrett T-28
Newer Nissan Pulsar GTI-R Garrett T-28

From my previous research, the pulsar T-28 is a slightly larger turbo than the T-28 than from the silvia. But the Silvia T-28 is ball bearing where the Pulsar is not. Although I have yet to see a T-28 on a B18a/b, I would think it would be one of the best turbos for a street application. Good balance between spool time and overall power. Contact TurbochargedSER on the board, he can get you a Brand New Garrett T-28 with newer model Pulsar specs from somewhere around the $650 range, he always knows alot about nissan turbos since he is a nissan man

 

That's what I like to hear. I figured since this guy's been in the turbo business for ~20 yrs he knows what he's talking about. The HKS manifold has the flange for this turbo, does that mean it doesn't accept the T3/T4?

 

The HKS manifold has a T-25 flange. It will allow Garrett T-25/28 to bolt to the flange. It wont allow you to bolt a T3/T4 to it. On a side note. If you ever want to upgrade to a bigger turbo, your best but will be a HKS GT25 which has a T-25 flange is a monster turbo (someone correct me if I am wrong about the GT series model).

 

But I think all the HKS manifolds with T25 flanges are "JDM" turbo flanges which differ from the US turbos. That's what I've been reading here anyway.

 

The manifold for T25 will fit T28, they both look alike and I believe shares a lot of same characteristic, including numbers of blades and etc...

it's the way the blades are anlged is the difference of the two, I have seen them both, at an instant they look like the same turbo..

 

From what I have heard all garett turbos bolt up to the same manifold??? T series. From what I know the ball bearing T-28 commonly found on pulsar gtirs break all to often I would strongly reccomend another turbo, get a t3 with a small exhaust housing say .60.

 

Right, and the 14B, 16G, etc etc will also bolt to T25 manifold, BUT....

The turbo to manifold flange is apparently different on US and Japanese turbos. I read that the HKS manifolds use the Jap flange so a T25 from the US will not bolt up to the HKS manifold.

Now I don't know if that's true, but I think someone on here bought an HKS manifold for a T25 and it did not worth with a T25 from an Eclipse.

 

As earlier stated:

At first glimpse a T-28 looks just like the 25... a lot of DSM owners seem to be moving to them in my town. i think mostly because at first glimpse it looks stock

T-28 flows 620cfm, obviously due to its larger exhaust/compressor wheels. its really efficent from the flowcharts ive seen.. like >75% @ 14psi which is pretty nice for such a small lil guy. T-25 just chokes on efficency in comparison.

RRE actually even sells a 'big bore' T-28 for even more flow for like 750.00 i think



[Modified by GimpyAccord, 6:52 AM 8/30/2002]

 

Just a lil' info. The T28 is a T3/T25 hybrid. HKS GT25/28 are T4/T25 hybrids. A straight T3 will be better than a T28 since it gives you room to build and you can easily upgrade to a T4/T3.


[Modified by Dee, 6:04 AM 8/30/2002]

 

well the hks manifold uses a standard t25 flange (it looks rectagular with a rectangular port). the DSM t25's are rectangular with a circular port. that circular port flange found on the DSMs is a mitsubishi flange. therefore the t25's found on dsms were made by garrett specifically for dsm's. I got this info from HKS themselves when i was calling to verify this all.

 

I bought my t3/t04e from TEC. I went in there with what i wanted and they recommended me the t3/t4. I had a built sohc at the time...running high boost. The turbo they recommended is awesome....its perfect for my high hp sohc motor. I HIGHLY recommend them and they do awesome work. They also did work on my oil pan and made all my oil lines. I used to live in arvada so it was just down the street from me. (although im in socal now)

And a side note, the t28 on a b18a will be an AWESOME street machine. Quick spool with a nice topend. You will love it.

And since its a new turbo, it will mount to the HKS manifold just fine. (ie they will make you a jdm style t28 ie a real garret) (the garret t25 on the eclipse is custom to mount to a mitsubishi style flange)

liam

 

OH I live in JDM land so you mean to say you guys some how managed to get different turbo's under the same names, why don't they leave well enough alone?

 

*so what you guys are saying is that if I got the T28 the only up grade turbo is the GT30?
*If i got the T3 then i could upgrade to the t3/t4 or larger.? right?
*the HSK mainfold for the Bseries will only except the t25,t28 and GT30 ????

 

The HKS mani will not accept a GT30 without modifications!
Straight T3, T4/T3, GT28, GT30, straight T4 are larger than the T28 (T3/T25 hybrid).

 

TEC definately knows their ****. I'm sure that turbo and quote included custom specs on the turbo for your application.
I say go for it, the turbo will spool really fast and still make power way up top too I'm sure.
HTH
M


[Modified by 01ITR#700, 8:16 AM 8/30/2002]

 

The T28 from a Pulsar GTiR can easily support 300 whp. I have seen 321 whp out of a Pulsar GTiR T28. They are awesome turbos. Quick spool and great power. Youw ill not run out of turbo up top. The Silvia S13 turbo is a T25 which is smaller and can only support ~235 hp. The S14 T28 can support ~260 hp. The S15 T28 is a ncie unit, but is hard to find. It cn support ~285 hp. The S14 & S15 T28's are ball bearing whereas the Pulsar GTiR T28 is non Ball Bearing. Here are the specs to the Pulsar GTiR T28:

T3 Compressor Housing
60 Trim Compressor Wheel

.86 A/R Turbine Housing
76 Trim Turbine

You can also send the exhaust housing to Extrude Hone to help with spool and get more flow. I carry the Pulsar GTiR T28 in stock for $650.00. These are Brand New Garrett T28's. Email me @ louisanaya@hotmail.com for more info. They will bolt up to any Greddy (SOHC), HKS, or APEXi (SOHC) manifold since they all have a standard T25 flange.


[Modified by TurbochargedSER, 8:29 AM 8/30/2002]

 

1.2~1.5bar of boost is used to produce 320whp on SR20DET. A 57 trim AR.60 T04E/T4 O trim AR.40 that I setup for a friend's 180SX made 298whp at only .7boost on an untuned engine. Yes, the GTiR turbine is awesome but a used GTiR turbine sometimes cost more than a new T4/T3 that has loads more potential.

 

damn this is a good post... keep the info comming.

*so if i wanted to upgrade my greddy kit i could just get the T28?
*will the piping still remain the same, or do i need to get larger piping for more flow?
*The T28 has a external or internal w/g?
*how is this compared to the Greddy 18G turbo? (sool time, topend power, size)