Well last year I got a deal on two T04E Turbos.

I just can't seem to identify them correctly, every book talks about V or P-trim etc. The only numbers I've got are the size of the in and out holes.

The compressor side says: A/R 0.50 and the intake hole is: 63 mm (2.5")
The exhaust side: A/R is said to be 0.81 or 0.86 (it's big) and the outgoing hole is 66 mm. Pictures can be found at: http://www.itv.se/~a1003/turbo

I've started to convert my carb intake to EFI and I've also started to collect the material needed for the headers now (finally).

I don't know how to translate these numbers into different V/P-trim etc. Does anyone know?

I'm afraid that these two turbos might be too big for my 355 which revs to 6.000 rpm.

/Anders

 

Sure, i can help ya out you just have to get a some dial calipers and do a little measuring

Take off the compressor cover and also take off the exhaust housing.

for the compressor wheel:

-measure the inducer diameter (it is the small diameter from tip to tip)

-also measure the exducer diameter (it is the BIG diameter, the back of the wheel

for the turbine wheel:

-just measure the inducer (again its the smallest diameter you can measure from tip to tip

-----Once you measure those things and post them, i can look up the numbers in my book and tell you the wheels you have and the horsepower capability via the compressor maps

 

I was acutally thinking of using one of those on a Ford 5.0, not looking to make a race car but a nice kick in the pant s

What do you guys think

 

you could probably sell them through e-bay for good money (like some guy with a big block would really like them (I just talked to one that would like them). You could use the money for or towards a more fitting turbo single which would be easier to fit into your car.

 

89ProCharged:
I hate the idea of dismantling the turbo just to measure it up, but I guess that's the only way to do it.

I was hoping that it'd be possible to identify the size via the "input hole" which probably is the same as the inducer, right?

Are there several different trims with the same inducer diameter?
Maybe there's just one trim size with my inducer diameter so that I don't have to measure the exducer (cross my fingers).

Thanks for your help...

B4Ctom1:
I'm located in Sweden and those turbos has quite some weight, would probably cost a fortune just in shipping. If they are just a tad too big for my 355 I'll probably end up building a 400 instead, else I'd sell them or rebuild them with a smaller housing. So maybe they'll end up on ebay.

/Anders

 

no, the "inpute" hole as you put it (inlet) is 2.5" and even a 60-1 wheel only has an inducer of 2.23 or 2.32 something like that, i dont have my book handy

In all honestly it is VERY VERY easy to measure the wheels. The compressor cover comes off by just taking out the 6 bolts that hold it to the backingplate. Then just measure. The exhaust housing comes out the same way...it is very easy and might AT MOST take 10min

 

oh and btw.....

NO

two T04Es ARE NOT too big.....just a bit more work because you have to plumb external wastegates. if you would like to run internal wastegates you would have to convert them to a T3/T4 style and in reality it would be easier to just sell the ones you have and buy the hybrids

Let me know if you need help, working with turbos is much easier than people think

 

89ProChargedROC - Great words man, I really like what you're saying. :-)

I'll measure the turbo next time I'm at home. I'm out of town till friday evening so I'll get back with some numbers on saturday.

I've actually just ordered 2 wastegates from a guy that fabricate them to your order. They might not look so trick but they sure will do their job. He'll also make a dumpvalve or whatever this valve is called.

About turbos. I've recently helped a friend that has an Alfa Romeo with a 2 liter MegaSquirt EFI converted engine. He's also installed a small turbo on it.

It worked like a charm untill he turned the boost up. We actually blew the intake away (it's connected to the head via 4 silicone hoses). However, it was a nice experience and we laugh at the memory. But getting the car to run smoth and nice with MegaSquirt was a quite easy task. But then again, that's another forum I guess.

Thanks again!

/Anders

 

one last thing, make sure you really measure correctly. Some wheels have a 2.75, 2.95, or 3.00" EXDUCER (major) diameter so the differences are small

measure a few times

 

I say use the T04E's!!

 

I have now measured the turbo - as you said it was easy to take apart, a little bit harser to measure.
I got two different radius from the turbine wheel as well, looks like it's been cut on the upper part.
I've got the dual inlet exhaust house.

These are the numbers:
Turbine wheel: 2.89 inch (73.3 mm) , on the lower big radius
Turbine wheel: 2.52 inch (64.0 mm) , on the upper cut radius


Compressor wheel: 3.23 inch (82.0 mm), on the lower big radius
Compressor wheel: 2.19 inch (55.5 mm), on the upper small radius, measured on the big wings
Compressor wheel: 2.28 inch (58.0 mm), on the upper small radius, measured on the small wings
I guess it's the 2.19 and not 2.28 you want to use for identification.

I also found some signs/numbers on the wheels themselves:
Turbinewheel had the following: 908 A I
Compressorwheel had the following: 8002 A R

Well I guess that's all the information I can get.

Would really appreciate if you or someone else could help me identify this turbo and it's trim/whels. :hail:

Thanks
Anders

 

the picture I saw on the compressor side say .5 ar

 

radius - stupid me - I meant diameter.

Yes that´s correct - The text that I could find on the outside of the housing is written in my first post. And the A/R is .50

Unfortunately it's a little bit worse to read the numbers on the turbine housing..

I can only tell you this - they are QUITE big... Don't know when they're going to spool up.

I just hope that 89ProchargedROC can help me identify the trim's.
Would be great to have the correct turbo MAP to calculate from, I dont' think I've used the correct one before.

Thanks for your feedback.

/Anders

 

should be a P-trim exhaust, the exact measurements for a p-trim wheel are inducer: 2.544 exducer: 2.922. So i'd say its safe to say you have a p-trim turbine wheel

Ok, one thing: remeasure the compressor wheel at the biggest possible diameter (the back of the wheel works well for this). I'm assuming that the 2.19 measurement is the smallest possible diameter correct? If that is true you have a few possibilities of what they could be. Just do me a favor and remeasure the back of the compressor wheel for its big diameter. If it is a T04E wheel it should be 2.95 and if it is a T04B wheel it will be 2.75

So the way it sits right now with your measurements you with 2.19 being the inducer, as an E wheel it should be the 54trim (2.17). But if it is in fact a B wheel it is a V-trim (2.18)

So remeasure and re-post and then you'll know

 

Thanks for the help so far...
Now, this is getting weird.. I remeasured the turbine and got the following:
exducer: 3.224 (81.9 mm)
inducer: 2.189 (55.6 mm)
I remeasured several times and my girlfriend did to. The turbine has these numbers. It´s from a Volvo 6 litre diesel engine.
I looked on the turbine housing and you can actually see, even though a lot faded - that it says: T 33 or T 35 or something - don´t know if that´s a lead.

Anyway, the plate from Volvo says:
Volvo P/N: 11033835
GAG P/N: 466742-13
S/N: EL00105AT04E10
Made in U.K by Garrett for Volvo.

Perhaps it´s a special made turbo for Volvo and not a T04E that the guy that sold it to me said it was. :-(

/Anders

 

Well, it is hard to say because i dont have the turbo in front of me but the turbine wheel sure looks like a p-trim (garret style) wheel. Wish my computer/digital camera was working i'd show you a pic of mine and you'd feel better

Dont feel bad, if you have never measured turbo wheels before it can be tough and start to get weird measurements

Either way, i think those turbos will be fine....but sometimes those divided flange exhaust housings can be tricky

 

Note to self: Find some big azz volvo turbos next time I'm at the truck yard.

ta84-355 - Those sound like a pair of beautiful volvo diesel delivery truck turbos

 

Well, I´ll try these turbos out but I´d feel better if I could look at the turbo map and do some math to see if/how things should work.

I actually adjusted the dial calipers to 2.95" just to see how much bigger the compressor was and well, it´s like a wet dream.

I only hope that it isn´t too heavy to spool up fast enough.

But I guess we´ll see later.

Thanks for trying to help me out though, and when I get the headers ready I´ll get back to this board.

First I need to install the megasquirt and that will take the next 3 weeks I guess. Need to make fuelrails and injector bosses etc.

Then I have to shorten the half SAAB Scania H-U-G-E intercooler also.

Thanks
Anders