lololololololololololololololo.

 

I tried it out today!

http://youtu.be/jX5hhP_ncvs

 

That o2 sensor won't have a very long lifespan, that's for sure.

 

I love this ghetto-fabrication stuff.

 

We moved from the ghetto, we now have a double wide

 

Thanks for the info. I'm taking it that it should be installed further from the turbo? I have a second bung on the down-pipe about 36 inches away. Would that be OK?

 

I believe that's the "perfect" distance, that or 18 inches, I forget which.

*insert ***** joke here*

 

Something like that, but definitely further than the 3" it is now.

 

I have a question regarding my OEM Lancer recirculating blow off valve.
I searched regarding recirculating BOVs and I guess it is normal that they open during throttle blips / high vacuum conditions?
My question is that it it shouldn't automatically mean that a stronger spring is needed? I will be running low boost as I have 315cc injectors/stock clutch/and paralyzed by fear even at 6psi

 

Any updates on how this is running? I'm looking to do a similar setup on my Miata, since I just got a 16g for my Subie and my TD04 will be a swap candidate.

 

on the down pipe in your pic. What pattern is that and what is it used on. I have a china turbo i bought thinking it was t25 in and out but the down pipe flange is a wierd 5 bolt flange looks like your. I am trying to figure it out so i can sell it with correct info.

Thanks. Nice build

 

It runs well so far. No leaks or cracks but as for the long term who knows.

I made it this way as I had an existing t25/t28 manifold and downpipe on the car.
If I was starting from scratch I would use the TD04 13t but probably not the same piping route.

Unless you want built motor power then I think a mild steel log manifold would be OK.
This one I made for a friends car which we will fit soon.
(Recycled flange from old manifold, a few tees and elbows and some welding.)


The turbo fits without clocking and the Subaru decat downpipe bolts up with a little flange rework.
Setups like this can be cobbled together for 100$.

 

The larger 5 bolt exhaust pattern is one used by Subaru for decades afaik.
This pattern is found turbos from IHI and Mitsubishi for Subaru's, Impreza, Forrester, Legacy etc. so probably a good way to describe it would be a Subaru 5 bolt downpipe flange.

 

Ha ha ha ha, just read this thread again. Obviously I was running full retard when I hacked this together
I pulled it apart today as the #4 manifold runner started cracking.


A year of abuse has taken its toll on some previously shiny bits.


But it somehow held together.


Time to butcher up something new!

 

For what it's worth, you could have used the turbine housing from a greddy td04 turbo (like the miata greddy kit, or maybe the D-series honda?). It's a direct fit to the MHI TD04 CHRA and makes it a t25 inlet/outlet flange.

 

cool tip

 

Good info Asx! That would have been an easier option but Greddy/civic parts are hard to source around here.

I will probably make a new manifold that suits the Subaru turbo.
(I sketched a rough set up.)




I would like the turbo to sit forwards and low. I haven't seen manifolds like this so there must be reasons why not to do this?

 

Heavy turbo sitting out on a lever like that, I imagine it would cause alot of stress on the weld at the collector.

 

I wouldnt set it like that at all, even though the td04 is tiny and doesnt weigh much. Not only is it likely going to break at the collector you're going to choke up flow with that extension tube. Make the collector just before the turbo.

 

For something like that you'd usually see longer runners meeting at the turbo flange. We've made them, search "ramhorn" manifolds, although they generally hold the turbo upside down.