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Low Mount Twinscroll Turbo Concept for EJ25


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But it's fun to watch bits of white-hot turbine fly out the tailpipe!
Obligatory '[URL="http://legacygt.com/forums/showthread.php/2008-gh8-238668.html?t=238668"]build thread[/URL]' Increased capacity to 2.7 liters, still turbo, but no longer need spark plugs.
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I thought you posted the SP Racing valve in response to the EFR QSV I linked to - my reply was intended to make sure there was no confusion and to clarify that the SP racing valve could not be used in the usual twin-scroll application like we'd see on our cars.

 

Looks like I wasn't at all clear in my post :redface:

 

Why could this not be used in the twin-scroll on our cars? The up-pipe makes a perfect undivided manifold connection.

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Why could this not be used in the twin-scroll on our cars? The up-pipe makes a perfect undivided manifold connection.

 

As long as you had a single scroll uppipe it would work great.

 

 

OK:

http://www.full-race.com/wp-content/uploads/2016/07/subaru-impreza-wrx-sti-ej20-25-t3-iwg-efr-singlescroll-up-pipe-1-0-1.jpg

 

 

Not OK:

http://www.full-race.com/store/images/full/subaru-impreza-wrx-sti-efr-internal-wg-twin-scoll-turbo-kit-1-content-17.jpg

 

 

I'm sure it's obvious to most, I just wanted to clarify before some impulse-prone person happened to read this thread and installed the SP Racing valve on their existing twin scroll setup.

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