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-   DIY Turbo Discussion (https://www.miataturbo.net/diy-turbo-discussion-14/)
-   -   Ewg on down pipe?? (https://www.miataturbo.net/diy-turbo-discussion-14/ewg-down-pipe-70715/)

iantboyd 01-30-2013 10:27 AM


Originally Posted by Braineack (Post 973420)
Im not.



so you agree, it's not behind the turbine.



Is today opposite day for you?



It would be physically impossibrule for the wastegate to be between the turbine and muffler, but able to "bleed off" gasses around the turbine.

It's not semantics, it's not a technicallity; it's simple NOT behind the turbine. It's infront of it. Route the damn tube all the way to the tailpipe, it's still in front of the turbine.

The whole hot side assembly is considered the turbine. True, the ewg is not behind the turbine wheel. That was not the intent of my post. Regardless of how you want to refer to it, it is physically comes after the hot-side but before the muffler. Which is something the op had asked about or I believed him to be asking about.

Braineack 01-30-2013 10:32 AM


Originally Posted by iantboyd (Post 973425)
the whole hot side assembly is considered the turbine. True, the ewg is not behind the turbine wheel. That was not the intent of my post. Regardless of how you want to refer to it, it is physically comes after the hot-side but before the muffler. Which is something the op had asked about or i believed him to be asking about.


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the whole hot side assembly is considered the turbine.
no.


True, the ewg is not behind the turbine wheel.
derp.


Regardless of how you want to refer to it, it is physically comes after the hot-side but before the muffler.
Hot town, summer in the city back of my neck getting burnt and gritty

kodirat 01-30-2013 10:34 AM

Iantbody yeah my setup would have been similar to what you posted, I decided to not go that route though. Just going to make the dp a simple vband and stick with the internal wastegate. I feel the external wastegate is unnecessary for this size turbo and my goals

Braineack 01-30-2013 10:36 AM


Originally Posted by kodirat (Post 973427)
I feel the external wastegate is unnecessary for this size turbo and my goals

the size of the turbo or goals has nothing to do with the use of a EWG over an IWG.

kodirat 01-30-2013 10:38 AM


Originally Posted by viperormiata (Post 973424)
I see you bought the new 209 dollar ebay special. The manifold is fine, be prepared to have work done on the downpipe.

The flanges they have on the downpipe are perfectly fine. That manifold/combo is designed for a turbo using the tradition "Ford 5 Bolt" style turbine outlet and will bleed off enough gas through the hole to work well with an external waste gate. People have been doing it that way for years and years.

Don't make the mistake of thinking that is "after the turbo" because it's definitely not. That will bleed gases pre-turbine, not post turbine. That setup uses the same style waste gate hole for the turbine housing that most internal waste gate systems use, this just happens to have flanges for an external waste gate that will operate it vs. the traditional can and arm.

Yeah the last owner of my car fabbed his own exhaust from the headers back so I went into this knowing that no off the shelf dp would bolt right up, ill definitely need to do some fabricating to make all of this work but that's half the fun :D

kodirat 01-30-2013 10:41 AM


Originally Posted by Braineack (Post 973429)
the size of the turbo or goals has nothing to do with the use of a EWG over an IWG.

Okay, so give me your opinion.. Should I keep the flanges on and stick with a ewg or use the internal wastegate and make the dp vband?

Braineack 01-30-2013 10:45 AM

it would surely be easier...

kodirat 01-30-2013 10:50 AM


Originally Posted by Braineack (Post 973435)
it would surely be easier...

To just use a ewg? I just was unsure because I haven't really seen them put on a down pipe like that before so that's why I asked

Braineack 01-30-2013 10:54 AM

yes, to use the ewg.


it's been done, as ianitaboy showed his setup, it's just not common and/or the ideal way to use them.

triple88a 01-30-2013 07:55 PM

So let me get this right, you're eliminating the door flapper on the iwg setup so you can use the same hole for an ewg setup essentially removing the benefit of an external wastegate and keeping the negatives of the internal wastegate?

kodirat 01-30-2013 11:31 PM


Originally Posted by triple88a (Post 973655)
So let me get this right, you're eliminating the door flapper on the iwg setup so you can use the same hole for an ewg setup essentially removing the benefit of an external wastegate and keeping the negatives of the internal wastegate?

Pretty much. Mainly because the turbo I have and down pipe are allowing me to do so (since I'm missing the whole internal wastegate flapper assembly) and the fact that the down pipe is already a 5 bolt flange with ewg flanges already on it


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