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Old 10-11-2019, 04:46 PM   #1
KillerBMotorsport
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Default FA20 WRX EWG Performance Twin Scroll Headers w/recirc?

For those looking for the advantages of EWGs without waking the dead







If anyone has any questions concerns or otherwise, please don't hesitate to ask.
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Old 10-11-2019, 05:16 PM   #2
adam99
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This is going to make alot of people very very happy. Is there any easy way to test exhaust back pressure with and without the recirc? That would be a selling point for me.
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Old 10-11-2019, 05:55 PM   #3
WRXnick16
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This is great for those that want more power, but to keep their daily driver quiet
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Old 10-11-2019, 06:11 PM   #4
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Awesome!!! Was one of my concerns for my future build.
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Old 10-11-2019, 06:57 PM   #5
killadawg
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You've got my attention, so how much? Without the turbo? And what's the biggest turbo I can out on this?

Thanks :-)
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Old 10-13-2019, 07:51 AM   #6
violentleaf
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Does the skid plate and undertray still fit? Perhaps with some modification?
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Old 10-13-2019, 09:55 AM   #7
noobultimatum
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Quote:
Originally Posted by violentleaf View Post
Does the skid plate and undertray still fit? Perhaps with some modification?
This is what i was wondering as well
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Old 10-14-2019, 08:37 AM   #8
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Quote:
Originally Posted by adam99 View Post
This is going to make alot of people very very happy. Is there any easy way to test exhaust back pressure with and without the recirc? That would be a selling point for me.
Agreed. We've been asked about this for a while now.

Yes the EGP can be tested, but that may not be as clear as actual testing. since the flow rates will be different. What would the comparison be to; stock, EWG w VTA, or...?

Advantages over stock are as you'd expect, but compared to VTA EWGs that advantage is less since you're reintroducing those gasses back into the exhaust (backpressure). You are removing the turbulent flow you would normally have from the IWG so there are certainly performance advantages here.

Quote:
Originally Posted by killadawg View Post
You've got my attention, so how much? Without the turbo? And what's the biggest turbo I can out on this?

Thanks :-)
This is shown with a stock turbo. I would think any stock turbo based bolt-in aftermarket turbo (I believe they are all based off the stock turbo frame size) would work, but I am speculating.

With our Twin Scroll Fury Turbo kit, it's a very different animal as it moves the turbo location some and you can run up to a GTX3582 (maybe the GTX3584, we've just not tried).

No pricing at this point, but I don't expect it to be cheap. 2 Slip Joints, 5 elbows, little bit of straight, and a bunch of work to the fit-up correct for welding. plus it's adding the cost of a J or I-pipe as well.

Quote:
Originally Posted by violentleaf View Post
Does the skid plate and undertray still fit? Perhaps with some modification?
Quote:
Originally Posted by noobultimatum View Post
This is what i was wondering as well
Don't know yet. Wanted to get the setup built first. My guess is no. I asked in a FB group 'would you sacrifice the belly-pan for recirc EWGs?' and it seemed like many already run without the belly pan, or didn't care if it needed to be removed. I guess the ETS turbo kits requires belly-pan removal anyway (our Fury Kit does not) so there were only a couple that were concerned.

Ideally, I'd love to retain the belly-pan. With our turbo kit the recirc option retains it, but that also goes (dumps) in the opposite direction of the J-Pipe and reconnects back into the I-Pipe much further down.
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Old 10-14-2019, 11:55 AM   #9
killadawg
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I'm running a primitive racing skid plate which gives me another inch of clearance so hopefully it wouldn't go further. From what I've searched, GTX3584RS is only available as V-clamp.. not sure your setup would allow that.. so maybe my limit is the GTX3582.. any ETA? On this? I refrained from your original setup due to the connections running farther down. My build is still WIP so I've got some time. (Was very close in running ETS kit, yet I wanted twinscroll on this).. and prop. your radiator as well :-).. any thoughts of making a FMIC?
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Old 10-14-2019, 02:20 PM   #10
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Quote:
Originally Posted by killadawg View Post
From what I've searched, GTX3584RS is only available as V-clamp..
So here is the GTX3584 with TS T3 Ni-Resist turbine housing. This setup should work with our Twin Scroll Fury turbo kit.

https://www.atpturbo.com/mm5/merchan...&Store_Code=tp

Quote:
Originally Posted by killadawg View Post
any ETA? On this?
For our Twin Scroll Fury turbo kit or the above Recirc EWG headers?

Quote:
Originally Posted by killadawg View Post
I refrained from your original setup due to the connections running farther down.
Why? The further down the line that connection, the less influence it has on post turbine backpressure/turbulence. Plus we could get away with connecting that EWG dump setup after the cat for even more benefit.

Quote:
Originally Posted by killadawg View Post
any thoughts of making a FMIC?
For majority of FA20 WRX guys budget products are king. We are not really a budget manufacturer, we are more performance/quality oriented. Our FA20WRX TMIC performs really well, but once Ebay TMIC started coming out our sales plummeted. We have no plans for a FMIC at this time, but if the next gen STi is FA based there may be some back compatibility to the FA20 WRX.
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Old 10-14-2019, 08:32 PM   #11
killadawg
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Thanks for the quick reply, I already own your TMIC (got the group buy years ago) and your ceramic coated headers. The reason I was more interested in this design opposed to the other was strictly from a visual perspective (I dont pretend to be an engineer) thanks for that info. Live and learn. Thanks on the turbo info, can that work with your fury kit? I'm dropping a FA24DIT / motec m142 with aux port injection in. I'm a ways off to completion as life keeps throwing curve balls my way. Yet slowly but surely she will be built. Better slow and steady and well planned out.
Thanks.
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Old Yesterday, 12:52 AM   #12
wuuusaa
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FYI - killadawg Full-Race can get that same turbo for cheaper if you're in the market.. just saying.
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Old Today, 03:26 PM   #13
killadawg
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Quote:
Originally Posted by wuuusaa View Post
FYI - killadawg Full-Race can get that same turbo for cheaper if you're in the market.. just saying.
Thanks for the info.. yeah I'm definitely looking, just haven't pulled the trigger.
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Old Today, 05:22 PM   #14
killadawg
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just checked full-race.. they don't offer the TS T3 Ni-Resist turbine housing... just Vband single scroll option.. would I have to call them to get that? this is just looking at their website. price is 200 bucks cheaper with vband. yet I assume it will go up with the t3 housing and be about the same? I think that is where I looked originally.
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Old Today, 06:34 PM   #15
KillerBMotorsport
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The Ni-Resist TS housings are expensive. That's your cost difference I bet.
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