t04b(v-trim) Bolt on Discussion

[cuttheduck]

I'm Looking at the T04b from bullseye. One question I wanna make sure of is:

-It says the optional internal wastegate has a 22pound spring. I was under the impression that this means that the wastegate will open at 22 psi. If you want to go higher, you use a BC to bleed off boost. However, you can't get a lower psi then the wastegate's spring "rating", unless you change springs.

Now this seems way too high, so is the actuator adjustable? If so, what kinda range are we talkin. Or am I missing something (probaly the case). I'd like a wastegate to open around 1 bar or so for DD and I'll use a BC for high boost. If not I'll just use an external tial. Thanks

 

[eclipse90gsxt]

I'm Looking at the T04b from bullseye. One question I wanna make sure of is:

-It says the optional internal wastegate has a 22pound spring. I was under the impression that this means that the wastegate will open at 22 psi. If you want to go higher, you use a BC to bleed off boost. However, you can't get a lower psi then the wastegate's spring "rating", unless you change springs.

Now this seems way too high, so is the actuator adjustable? If so, what kinda range are we talkin. Or am I missing something (probaly the case). I'd like a wastegate to open around 1 bar or so for DD and I'll use a BC for high boost. If not I'll just use an external tial. Thanks

Looks adjustable to me. I had a GT-12(56 trim) with a adjustable wasgate and was able to run 15 lbs but not any lower, with a 38mm gate like this turbo.

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[sweet97]

Man with those mods you could run the To4E! I've got to upgrade my injectors but I run the AGP RS49. Even with my injectors I'll be a bit short of your list, nice mods! You also did it the right way getting the suporting mods in order and then buying the turbo. Best of luck! Mark

 

[Zidane]

Whatever you decide on, please don't consider the 57 trim. I have one and it has been battered by compressor surge. It happens at 9-11psi. at 36-3800rpm in the upper gears, for instance on the freeway. I think the 60 trim would be the best choice. It's surge line is pretty vertical.

 

[1993eclipseGS]

I thought compressor surge had something to do with a blow off valve not functioning properly?
The to4b is the biggest I want to go, After the turbo/oil lines that is already $829.00. That is my max that i'm spending on a new turbo!
So you definatly think I will not hurt my internal's with this turbo? The only thing on my car that has not yet been replaced is the actual block and internal's everything on and around it is brand new including the head. The block has 103,000 miles, An older guy owned this car before I did for almost it's life, So I know it was not beaten on.

 

[Zidane]

This compressor surge is the far more destructive kind. The turbo spools too fast and airflow gets reversed back towards the compressor wheel causing it to slow or even stop. Imagine the compressor wheel spinning 50k+rpms then stopping immediately! That can't be good and also factor in the turbine wheel and what happens to it during all this. I believe that any of the wheels that are put into a T04b housing should only be used with a .82 exhaust a/r or even more to help slow down the spool, but then again I only have my experience with my crappy turbo to go by. YMMV
Time to go order something new, heck that's why I registered onto this site today. Good luck.

 

[1029TSG]

Looks like most of your questions were answered by other members. Although 2 of our turbochargers are currently on sale, I can still take another $30 off ($549) for tuner members. Email or call us with your billing and shipping information and I'll take care of it.

 

[madaba]

awesome, i'm gonna order mine tomorow

 

[eclipse90gsxt]

Anyone have real numbers yet?

I had a SBR GT-12 but I am looking for something a little smaller and cheaper and this turbo looks to be a good option. Also what is the specs that you can give me on the T04B-H3, it doesn't list a trim or anything. I am looking for something that can give me 350-maybr 400 at the wheels.

 

[nazthug]

i already have an ss oil feed for my 16g


can i somehow incorporate this to work with this kit?


or can u just send me the adaptor? i rather not change the line, because its a pain to pull it out and put it back in and not mess the threads up on the oil filter housing....so i rather leave it and just get the adaptor to make it fit the t3/04b

also, this 22lb spring, whats the lowest you can set it at? I obviously dont want my lowest setting on the street to be 22lb,

i have an EBC so i rther use that to raise boost, so i rather start off as low as possible

 

[1029TSG]

As long as your oil feed is a -4, that wouldn't be a problem. With this actuator you should be able to set your base (lowest) boost between 8-12 pounds. Then use your BC to bleed off your reference to raise it as high as 30+ psi.

 

[nazthug]

yeah, its -4 but its fitting is for the mitsu turbo(16g)

I am assuming i can addapt it to the t3.04b

i was looking at compressor maps, seems like the t3.04b v trim only gets to about 73% efficiency, so its not the most efficient turbo, not as efficient as the t04e

are there any real world numbers on this setup yet? I am dying to find out, but i will most likely get this t3/04b to replace my 16g just to try it out

so i also need the drain pipe kit and a 3" intake and just loop my waterlines right?

I have an evo3 o2 housing, will it bolt right up? I noticed the outlet on your turbine on the wastegate part looks almost like a D, has a flat side, will this be a problem with the evo3 o2 housing?

 

[1029TSG]

Yes, we have the fitting you would need or a Home Depot A-80 brass fitting will do. For the drain you can go back to your 2g drain (slot the flange) or buy our drain kit. We recently launched The Turbo Challenge to show our future customers some real world data, we will post results as soon as we receive them. Any stock or upgrade o2 housing will work. In some cases, the 38mm flapper door may hit the stock o2 elbow but a minute or two with the dremmel with take care of that.

 

[myblack98gst]

My car is basically fully built what it doesn't have it will soon enough... I am shooting for 550 whp from turbo only.. would this be possible with one of your bolt on turbos??

 

[1029TSG]

I would suggest either one of our T04E's, they are capable of 500+ WHP. One of our "test" units put down 494 at the wheels at 24 psi. I can also offer DSM Tuner members $50 off our regular price on our T04E complete turbochargers.

 

[nazthug]

oh cool, mine is already slotted for my 16g, so otherwise, it should work?
is the inlet diameter of the stock return pipe big enough for the t3/04?

Sweet, whatever can save me money in acccesories i am good for



this way all i have to buy is the turbo and a 3" intake pipe

 

[nazthug]

1 other question:


Do these turbos use the 360* thrust bearing or the 270*?

 

[1029TSG]

Actually the T04B is a 2.75" inlet or you can use a reducer.

 

[92awddsm]

oh cool, mine is already slotted for my 16g, so otherwise, it should work?
is the inlet diameter of the stock return pipe big enough for the t3/04?

Sweet, whatever can save me money in acccesories i am good for



this way all i have to buy is the turbo and a 3" intake pipe

The garrett oil return bolt holes are slightly wider than the 16g. I just bought a flange to bolt to the garrett, cut the turbo end off my stoch oil drain and then used a piece hydraulic hose to connect the two pieces. You will be supplying the same amount of oil to the t04b as you did with the 16g so the stock drain will suffice. This swap is still fresh in my head since I just did it a month or so ago.

 

[92awddsm]

Actually the T04B is a 2.75" inlet or you can use a reducer.

The od of my t04b is 3" so the 3" intake pipe did fit perfect without a reducer.

 

[1029TSG]

All of our turbochargers come in straight from Garrett, we dont build any of our cartridges. We simply bolt on our turbine housing, compressor housing and custom actuator (if necessary) and ship it. Garrett only uses 270 degree thrust bearings, you wont find a 360 until you reach their T04S family of turbochargers. Since these turbos are designed to run a 270 at what ever boost level is on the compressor map a 360 degree thrust bearing is merely overkill.

 

[1029TSG]

The garrett oil return bolt holes are slightly wider than the 16g. I just bought a flange to bolt to the garrett, cut the turbo end off my stoch oil drain and then used a piece hydraulic hose to connect the two pieces. You will be supplying the same amount of oil to the t04b as you did with the 16g so the stock drain will suffice. This swap is still fresh in my head since I just did it a month or so ago.

Just keep in mind, a turbocharger requires a minimum of a 1/2" diameter of unrestricted flow back to the oil pan. If for any reason you dont meet these requirements your turbo will let you know by leaving a puff a smoke in your rear view mirror. Its also important that the oil pressure "at the turbocharger" is no more than 55 psi or you will also see a smokey result.

 

[Bastard1g]

I have an h3 on my 98 gst. I have not cranked her up yet but as soon as I get a fmic and intake pipe, I will be good to crank her up and take her for a spin. I have a keydiver chip in my 95 ecu to compensate for the 780's that I run in there. For that turbo challenge, does it matter if it is race gas or pump gas?

 

[92awddsm]

Just keep in mind, a turbocharger requires a minimum of a 1/2" diameter of unrestricted flow back to the oil pan. If for any reason you dont meet these requirements your turbo will let you know by leaving a puff a smoke in your rear view mirror. Its also important that the oil pressure "at the turbocharger" is no more than 55 psi or you will also see a smokey result.

What do you recommend to restrict oil flow when pulling the feed from the oil filter housing? I drilled and tapped my oil feed fitting to accept a 12-24 brass screw in plug and then drilled that to 1/8". I did this because at cold startup, I see as much as 120psi oil pressure and about 60psi when warm and at cruising rpm(3-3500)

And my oil return ended up being 5/8" id hydraulic hose.

 

[nazthug]

I have an h3 on my 98 gst. I have not cranked her up yet but as soon as I get a fmic and intake pipe, I will be good to crank her up and take her for a spin. I have a keydiver chip in my 95 ecu to compensate for the 780's that I run in there. For that turbo challenge, does it matter if it is race gas or pump gas?

how's that workin out so far? How do you like the power?