You can buy the td04-19t new (through a dealership or other vendor), used (off of a Forester XT), or you can have a td04-13t modified with the 19t compressor wheel.. any way you go about it, it's not a bad turbo by any means.

 

The Subaru Forester Xt comes with a td04 19t stock? Is it a direct bolt on for 02-07 Wrx? Any other Subaru's come with the 10t?

 

It seems as though you don't fully understand dyno numbers:
http://www.clubwrx.net/forums/tuning-electronic-engine-management/134366509-dyno-faq.html

You pretty much max out OE injectors @ S2 power levels (any additional flow from the turbo will overrun the fuel system).

In an effort to avoid installing fuel pump/injectors, my recommendation would be to get a small-primary EL manifold (e.g., Perrin), quality TMIC (e.g., ProcessWest or ETS), aftermarket boost control, and a custom tune. All of those are a restriction in your current setup, which would only be more prevalent if you went with a larger compressor wheel. Those modifications would benefit you on the OE turbo, and also any modifications to the turbo system from then on.

 

Im not trying to avoid fuel upgrades. Would still get Sti "pink" injectors, Walbro 255 fuel pump, Sti tmic, 3 port ebcs and a tune.

I just cant seem to find much info on the tdo4-19t. I would still be interested in a Vf turbo, as long as its smaller than the vf39.

Im not really looking for a large amount of power or tons of topend. I just want an extra 40 whp with the quickest spool possible, and the vf39 just seems to big for what I want. So the td04-19t turbo intrigued me, I just dont know much about them.

 

Sounds like a good fit for what you're wanting. There is also the option to have someone perform a port and polish on your current turbo (or even the upgraded 19t). Unless they have discontinued the service, I would go through Grimmspeed for a port and polish. They seem to know what they're doing. And I would think a 19t, with the port and polish, and perhaps a better intercooler, like the TurboXS (which can be found for around $575 shipped), with the other supporting mods you mentioned would be a pretty good setup. Maybe a new inlet to go with it, unless you're just really trying to save money.

 

This should help a bit.

http://www.clubwrx.net/forums/tuning-electronic-engine-management/134313723-finally-got-protune-today.html

If I recall the deadbolt monster TD04 in that thread is a 19t .

 

Blouch used to perform a 19t wheel upgrade service. It would be worth your time to give Blouch a call.

 

Im not trying to avoid fuel upgrades. Would still get Sti "pink" injectors, Walbro 255 fuel pump, Sti tmic, 3 port ebcs and a tune.

I just cant seem to find much info on the tdo4-19t. I would still be interested in a Vf turbo, as long as its smaller than the vf39.

Im not really looking for a large amount of power or tons of topend. I just want an extra 40 whp with the quickest spool possible, and the vf39 just seems to big for what I want. So the td04-19t turbo intrigued me, I just dont know much about them.

Gotcha.

You're probably not going to get 40whp out of the 19T upgrade.

Don't bother with the STI TMIC unless you can get it for like $100; it's not much of an upgrade. You're better off spending $300-500 for a used aftermarket one.

This should help a bit.

http://www.clubwrx.net/forums/tuning-electronic-engine-management/134313723-finally-got-protune-today.html

If I recall the deadbolt monster TD04 in that thread is a 19t .

Not quite. Bill now has a 19T, but AFAIK, has only done road tuning on it (no dyno plot).

 

Not quite. Bill now has a 19T, but AFAIK, has only done road tuning on it (no dyno plot).

Ah yep: http://www.clubwrx.net/forums/engin...ms/engine-modifications/134346179-fuel-pump-injectors-tgv-deletes-td04-19t.html

Very lively discussions took place there - great info. 3+ years later I'm still quite pleased with the results. I have a some Virtual Dyno plots. I got very specific and exact with the parameters such as car weight (with my fat ass in the WRX, no chassis dyno does that), temperature, humidity, barometric pressure, etc.

Raw Virtual Dyno numbers. Link to full size: https://farm6.staticflickr.com/5602/15836512915_87e181e285_o.png

Virtual Dyno plot adjusted for DynoJet equivalent. Link to full size: https://farm8.staticflickr.com/7565/15834652831_bf7fe07c06_o.png

 

buddy did this on his 06.

Think he put down 269 or something. STI pinks and a walbro as well

 

I didn't infer anything regarding the flow from the pictures. I was speaking to the port size statement.

 

Would porting the exhaust manifold and cross pipe help the td04 spool up quicker? Or help flow more in the top end?

The same advice below is what you would want:

(A) small-primary EL manifold (e.g., Perrin), quality TMIC (e.g., ProcessWest or ETS), aftermarket boost control, and a custom tune.

 

The compressor housing is the most obvious difference.. the angle of the outlet, and the flanges are completely different. I'm not positive about the turbine housing.. the uppipe is the same, but they use a slightly different downpipe, so I would guess that the turbine housing is also a little different.


Did they tell you they don't do it anymore? The first thing I would do is call them and ask.. see what they recommend. If you can't find anyone who will do the upgrade service (I'm sure some smaller turbo shops will, but their quality might be questionable), then you could always look into something like a complete aftermarket swap like this one: KINUGAWA TURBO Online Shopping Cart - SUBARU TD04 Bolt-on -- Kinugawa seems to be one of the better "cheap" manufacturers. At least I'm never heard anything horrible about them.. but I would definitely opt for something like Blouch or FP as a first choice.

 

All I really want is about 250Whp/wtq, 260 max.

I also do not want any more top end than the vf39 could flow.

Well which is it? Either you want enough top end to hit 250whp, or you don't..

I am really hoping an upgraded td0419t, Cobb intake, tmic, injectors, fuel pump, 3 port ebcs and protune (and maybe catback) would get me 40whp over the above stage 2 ots map - on the same dyno.

It would probably be close. I wouldn't be all too surprised to see a good tune make 15-20whp over an OTS map with the same parts on the car. If you really want to get the most out of a 19t an EWG would help a lot. It seems like I read somewhere that Blouch recommended clipping the turbine fins because it will choke with the 19t wheel on there, EWG would be a great solution for that without having to sacrifice spool like you would by clipping the fins.

Also, don't forget things like TGV deletes.. you could pick up 5-10whp just from that (and it's free if you do it yourself). Narrow primary equal length headers will also improve mid range power and just make the engine run better all around.

 

Anyone used or heard of ARD tuning? Welcome to ARD Tuning -

They seem to have all sorts of upgraded td04's and 19t upgrade parts. They even have a 19t conversion wheel that supposedly fits the 13t chra without any machining involved, and the 19t compressor to go with it.

https://www.youtube.com/watch?v=hA2CMih9iy8

https://www.youtube.com/watch?v=xTOjEBaRUc0


Still interested in vf turbos tha are "smaller" than the vf39 that also spools faster. Vf39 is absolutely as big as I would go, still seems a little too "big" for what I want. Vf34 and td05 16g are too big.

 

A


Still interested in vf turbos tha are "smaller" than the vf39 that also spools faster. Vf39 is absolutely as big as I would go, still seems a little too "big" for what I want. Vf34 and td05 16g are too big.

For the last time,there are no VF turbos smaller than the VF39. I'm not sure if you are just plain not searching on Google or what but your not breaking any new ground here. Your car has been around for over a decade. I'm sure there is plenty of info floating around on what you are after. You are not the first. Not to mention I don't think you fully understand the difference between spool up and airflow. Just because on turbo hits peak boost faster doesn't mean it is moving more air.

 

Just because on turbo hits peak boost faster doesn't mean it is moving more air.

Ding Ding Ding

A 16G is the perfect turbo on a 2.0L in my book; more power pretty much everywhere in the band, especially in the top-end. The only reason to "settle" on the VF39 is because of cost.

 

Ding Ding Ding

A 16G turbo is about a perfect turbo on a 2.0L in my book; pretty much more power everywhere in the band, especially in the top-end.

And if you don't want that much top end (for whatever reason), then you could just taper to boost off to have exactly the amount of power you want..

 

So a vf39 on an ej205 can put down more power under 3k rpm than a td04? not trying to be a smartass. serious question.

I know the vf39 can make more peak power than the td04, and i know the vf39 should make more power from 4k to 7k redline, just did not seriously think the vf39 could make more pwoer below 4k since its "bigger" and takes longer to spool

 

So a vf39 on an ej205 can put down more power under 3k rpm than a td04? not trying to be a smartass. serious question.

It can, although that isn't always the case.. depends on the car and the tune. I did some searching through Cobb's database and came up with this.

 

just did not seriously think the vf39 could make more pwoer below 4k since its "bigger" and takes longer to spool

You seem to be fixated on one factor: spool / boost threshold. If you want to focus on one factor, that should be airflow. More air flowing through the motor = more power.

At a very basic level, take three turbos...

At XXXX RPM, you have 12PSI on one, 14PSI on another, and 16PSI on the third. In terms of boost: 3 > 2 > 1. In terms of airflow, however: 1 > 2 > 3. As a result, you will have more power with less boost.

 

I get how 15 psi from say an 18g is actually more cfm than 18psi from say a 13t, but for some reason always figured the td04 13t would make more power below 4k rpm than an 18g. -especially after reading almost everyone complain about lack of low end and spool with a relatively small vf39 on the ej205 motors.

Im just looking to hit around 250whp/wtq (almost 40 more than my last dyno) with the quickest spool/best low-end possible.

 

so ive been looking into this as well but cant find much!! did you ever get it done or find someone to do it?