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Twin scroll oem 10.5 EVO 8 turbo in Galant VR4 4g63

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Old Dec 31, 2011, 11:29 PM
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1g bov installed backwards so that boost pressure can not push the valve open only hold it shut. (similar set up to some of the aftermarket valves out there, EG HKS, perrin) of course vacuum still pulls it open so it serves it's purpose perfectly
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Old Jan 1, 2012, 06:27 PM
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Honestly one of my favorite cars and my wish list is to find a VR-4 and Starion
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Old Jan 1, 2012, 10:59 PM
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Originally Posted by tunermt
1g bov installed backwards so that boost pressure can not push the valve open only hold it shut. (similar set up to some of the aftermarket valves out there, EG HKS, perrin) of course vacuum still pulls it open so it serves it's purpose perfectly
Oh man...

The valve will not open if there is more positive pressure still on the back side of the valve. If this made ANY sense at all, you wouldn't be the only one doing it. The only thing that forces that valve open is more pressure on the bottom of the valve vs. the back side of the valve.
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Old Jan 2, 2012, 05:25 AM
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Works great for me but if you prefer another option so be it
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Old Jan 3, 2012, 07:16 PM
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Originally Posted by Dynotech Tuning
Oh man...

The valve will not open if there is more positive pressure still on the back side of the valve. If this made ANY sense at all, you wouldn't be the only one doing it. The only thing that forces that valve open is more pressure on the bottom of the valve vs. the back side of the valve.

Actually this is nothing new...people have been doing that for a long time, just another way of running it. I believe a lot of rally setups are run with the bov reversed. I have run mine reversed before. It serves the same purpose except like previously stated, that it stays shut and works as a pull setup instead of push.
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Old Jan 3, 2012, 07:31 PM
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I just don't see how this would possibly work correctly.
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Old Jan 3, 2012, 07:39 PM
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Wink
Originally Posted by Dynotech Tuning
I just don't see how this would possibly work correctly.
It is a bad idea.
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Old Jan 3, 2012, 09:26 PM
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Originally Posted by Dynotech Tuning
I just don't see how this would possibly work correctly.

Something is better than nothing...
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Old Jan 4, 2012, 03:53 AM
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Why not install it correctly? That sounds like a whole lot of something. If its leaking at his power level, somethings wrong with it.
Last edited by Dynotech Tuning; Jan 4, 2012 at 06:35 PM.
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Old Jan 22, 2012, 08:01 PM
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valve does not leak and there is currently nothing wrong with it installed the way i prefer to prevent ANY boost from slipping past unless of course the valve/diaphragm see's vacuum to open.

happy Chinese new year everyone
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Old Jul 26, 2014, 10:32 AM
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Little video of the mild rally style ALS system on my Vr4 (running AEM ems and ALS kit)

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Old Feb 17, 2016, 02:16 PM
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Playing with the Antilag system for some mild boost on that snow/ice.
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Old Feb 19, 2016, 10:56 PM
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Do you see improvements in the response/air reserve in between quick shifts?
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Old Mar 8, 2016, 08:04 AM
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Originally Posted by detroit pistins
Do you see improvements in the response/air reserve in between quick shifts?
indeed holds boost between shifts to basically any level you would like depending on how you tune it.
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Old Nov 7, 2016, 04:42 PM
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Anybody else out there getting excited for some winter rally fun!?
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