Turbonetics T3/T4

[kris_]

Guys ive found a turbo im thinking of bolting onto the civic to replace the little Nissan T3.

Can anyone tell me how well this turbo will suit.

Here is some info...

The T3/T4 Hybrid turbochargers consist of a T3 turbine section and a T4 compressor section. This combination offers the low inertia and fast boost response of the lightweight T3 turbine wheel and the high-airflow characteristics of the T4 compressor family.

This turbo is like new, was only used for about a month. It has a HP rating of 550, its nice and smooth and spools fast

I'll try and find some tech data on it as thats all I have atm.

http://i17.ebayimg.com/05/i/07/48/8f/8c_1_b.JPG

BTW its for a stock B16A

[AusS2000]

Nice turbo, but isn't it going to be a bit big for a 1.6L engine? Wouldn't something like a GT2871 be better?

[kris_]

well thats what im trying to figure out.

If it'll be too big or not

[AusS2000]

See what others say. I would think it was too big. It's pretty good for an S2000 but that is 25% bigger and revs even higher.

It also depends what you're after. If you're after a drag racer then go big. If you're after a circuit racer then more moderate size.

[saxman]

t3/t4's are VERY common over here on the d's and b's, but personally, I think they're way too big. If that ones rated for 550hp, it's likely a larger t3/t4, and will probably be a pig to drive on the streets.

you couldn't go wrong with a gt2871r

[Q_ball]

ive got a t3/t4 turbine in my teg, and driving it on the streets has been fine!
i dun find it havin too much lag and the kick at hi revs is really impressive indeed.

[kris_]

ive got a t3/t4 turbine in my teg, and driving it on the streets has been fine!
i dun find it havin too much lag and the kick at hi revs is really impressive indeed.

Q Ball, what AR is yoursand how big is the exhaust side?

[dsp26]

isn't a T2 flange more common for boosted Honda's???

SS Autochrome/Stone Mountain Racing sell a Hybrid TD03/04 with a T2 flange for about AU$500 delivered to Australia.....

[kris_]

not really. Many of them use a t3 flange including myself.

Also i wouldnt go near another product from SS Autochrome. The quality isnt great. Ive learnt that myself.

[dsp26]

not really. Many of them use a t3 flange including myself.

Also i wouldnt go near another product from SS Autochrome. The quality isnt great. Ive learnt that myself.

um.. yeah actually your right... i take it back.... they've ripped off many products from quality producers...


***EDIT***


This turbo is like new, was only used for about a month. It has a HP rating of 550, its nice and smooth and spools fast

^^^actually how do you know this? was that how it was advertised??

[saxman]

isn't a T2 flange more common for boosted Honda's???

SS Autochrome/Stone Mountain Racing sell a Hybrid TD03/04 with a T2 flange for about AU$500 delivered to Australia.....
t3 flange is going to probably be the most common, with the t25 being second in line

[Weq]

The turbo u have there will spool at around 5000rpm and pull hard to redline.

MRJDM runs a very similiar trimming. Made 20kw more atw on the same boost as his skyline t3. Fun turbo, but a little to big for a stock internal IMO. u want a turbo rated at around 400hp, which is a small gt30 or a gt2871r. Also t3 super 60 and a smaller t3/4 with a .48 turbine and 50~trim compressor.

[Sexc86]

IMO, if you find a turbo is a little laggy, just get a Cam(s) and possibly some oversized forged pistons to conpensate. The only down factor is obviously Money... you will spend more... but in saying that you get what you pay for.... More money WILL get you a Larger turbo such as this t3/t4, cams and oversized forgies that will in the end give you much better gains...... (btw im not going off on a tangent, i am trying to make a point)

[Weq]

thats true. im assuming this guy wants to keep his stock internals :)

If stock internals are ur goal, get something smaller. if u want to build, this turbo makes awsome power all the way to 20~psi. Look at mrjdm, trapped a 114mph with slipping clutch and no traction :)

[saxman]

IMO, if you find a turbo is a little laggy, just get a Cam(s) and possibly some oversized forged pistons to conpensate.
cams aren't going to make a huge difference in spool, and oversized forged pistons, and generally the compression ration drop that goes with them(not many install forged pistons without dropping the comp ratio) will actually make the turbo more laggy.


If you're keeping stock internals, choose an appropriately sized turbo. There's no reason you can get a turbo that'll make more power than the internals can handle, pull until redline, and provide boost at a much lower rpm than 5000.

A t3/t4 rated for 450-500hp is not a good choice for a stock internalled motor. Sure, it'll make good power up high, but there are much better choices out there.

[Sexc86]

cams aren't going to make a huge difference in spool, and oversized forged pistons, and generally the compression ration drop that goes with them(not many install forged pistons without dropping the comp ratio) will actually make the turbo more laggy.


If you're keeping stock internals, choose an appropriately sized turbo. There's no reason you can get a turbo that'll make more power than the internals can handle, pull until redline, and provide boost at a much lower rpm than 5000.

A t3/t4 rated for 450-500hp is not a good choice for a stock internalled motor. Sure, it'll make good power up high, but there are much better choices out there.


Can you explain to me how increaseing your displacement with oversized pistons will not help turbo lag? my thoughts would be that it deffinately would so if you were takeing a 1.6 out to say 1.8 even if your compression was a little lower

[saxman]

because you can't really significantly increase the displacement of the motor through just boring it out. a .1-.2l increase isn't that huge. dropping the motors compression ratio by 1-1.5:1(a typical compression drop with forged internals) will make a much bigger difference.