tdonnell

Hello everyone,

I just bought a turbo today.

It was supposedly a t/3 t/4 turbonetics.

But when I got home and started researching, the turbine side is definately a T4 (there is a 3" outlet and the outlet flange is without a doubt a turbonetics t4). The A/R on the turbine is .58 and it is 'stage 5'.

The compressor is a 57 trim, I'm guessing .63 a/r but am not sure. There is a 3" inlet.

Is this too big for my 2.0L rd with an airram, 65mm tb, 268 cams and headwork?

It doesnt make any sense to put a t4 turbine housing on a t3 compressor unless you have a large engine trying to run low boost right? Supposedly it was on an IS300 6 cyl. and flows a maximum of 500 crank hp. There is minimal run time on this and shaft play is less than .5mm.

I will post up some pics if I can.

If anyone could let me know if this will work on the tib at 20-25 lbs. that would be great. And when it might spool, it is not ball bearing.

Thanks.

'treezy

do you have a flow chart for the turbo?

Cypher

http://www.full-race.com/catalog/product_i...9171d8035a5d671

that your turbo?

alice6

dunno if this will help or not but assuming you have the 2.0L engine if you want to run 25psi you're going to need a turbo that produces between 530 and 575 cfm or 43 and 46 lb/min (6500rpm)

These are just rough estimates*

if you can find a compressor map for that turbo plug those in with PR=2.7 that will give you your efficiency at max boost at redline

SOCKS_old

theres a good chunk of people on here using t3/t4 turbos, so its no where near overkill. i have a t3/t4 50 trim turbo on my car, and it spools pretty well, not sure on the ~rpm though.

for that high of boost that you are wanting to push, that turbo should work really good.

if you were looking to push like 12-16lbs of boost, you may want a smaller t3/t4 because it would spool faster.

that A/R on the turbine is a lil bigger than normal i believe, i think mine is a .48.

if those are the compressor specs, it looks like it should be flowing arounf 50lb/min with a lil more top end than a regular t3/t4 57trim.

'treezy

.63 A/R is standard for the three four's. .48 is the smaller option, and .82 being the other bigger option.

tdonnell

Hello guys,

Thanks for the responses firstly.

Cypher, that is not my turbo, I have a turbonetics, not a garrett. Although the compressor housing is similar.

I believe i have a straight t4 turbo, I can't find any turbonetics t3/t4's with the specs of this turbo.

You guys are right about the lb/min flow rates, I think it is somewhere in the 45-50 range.

Would the cams and headwork that I have increase my flow capability?

At 20 psi, when would this monster spool? 4000? What about 25psi? It shouldn't change right?

Thanks.

Hyundai4g63T

Take a picture and I can tell you what you have.

tdonnell

Here are the pics as promised:

http://i84.photobucket.com/albums/k29/tdon...bonetics005.jpg

http://i84.photobucket.com/albums/k29/tdon...bonetics004.jpg

http://i84.photobucket.com/albums/k29/tdon...bonetics003.jpg

http://i84.photobucket.com/albums/k29/tdon...bonetics002.jpg

http://i84.photobucket.com/albums/k29/tdon...bonetics001.jpg

I was told this is virtually a brand new turbo, there is about .5mm of shaft play, but since it is non-ball bearing I was told there has to be oil around the shaft to reduce that. That isn't excessive is it?

Any thoughts?

Thanks guys.

Bump for some info.

Thanks!

Hyundai4g63T

It is a TO4B with an Off Center T4 Turbine HSG.