Does anyone really know what is really happening with the ECM boost control system? I'm looking to prevent any opening pressure on the waste gate actuator until at least 50% of the maximum boost (26psi) is reached. This would hold the puck closed with full force for faster spooling. To try and do that I inserted a spring loaded relief valve between the compressor and the "Y" fitting. I haven't had a chance to test this since my rear brakes are destroyed. What do you think about this configuration? Should I have put the relief valve after the "Y" or not use it at all. It only opens when there is sufficient differential pressure but has a bleed hole in the outlet fitting.
Relief Valve
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You have just installed the classic "G-Valve" that drives B4Black over the edge. Should work like a charm. No problem with using it as you installed it. I ran them on my cars but I just took one off my GN trying to soften up the launch.
It works as advertised. There are some versions of the valve available that come with three springs so you can vary the total pressure desired further.
It works as advertised. There are some versions of the valve available that come with three springs so you can vary the total pressure desired further.
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43,735 Posts
don't think so. I was using mine tuner style...but using factory Y allows one to use a bleeder or the factory solenoid.
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43,735 Posts
Doctors prescribe G-Valves because they ultimately create a run on Prozac! 
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10,284 Posts
You're absolutely right.
Pressure relief valve.
It's just a matter of how it's configured.
Same as your wastegate.
It's a PRV *configured* as a bypass.
It is not a *bypass* valve,as most people are wanting to call it. frown
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I thought it was a vacuum relief valve until you reversed the spring?
In this application, it's a boost delay valve. Or, a boostus interuptus vulva, I mean valve.
In this application, it's a boost delay valve. Or, a boostus interuptus vulva, I mean valve.
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Bass, if you are using the chip to control boost, leave it hooked up.
I use the ME which does not use the chip to control the boost so I have a norgren regulator valve as the boost control.
I use the ME which does not use the chip to control the boost so I have a norgren regulator valve as the boost control.
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43,735 Posts
48935K25
Brass Vacuum/Pressure Relief Valve 1/4" NPT Male
$ 7.33 Each
For the anally inclined!
Brass Vacuum/Pressure Relief Valve 1/4" NPT Male
$ 7.33 Each
For the anally inclined!
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Rich is never happy! nono
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1,615 Posts
I'm happier with Check valve than Delay valve. But it's not a check valve either (very similar tough). A relief valve is normally closed until is cracks (relieves). It then re-seals at a lower value than it cracked at. A check valve is normally open, but closes when the pressure differential reverses.
Vacuum and pressure are the same thing, just below and above a reference point (ambient).
I am starting to sound like a damn uzi engineer.
It's a relief valve dammit.
I'm feeling a little better now.
Vacuum and pressure are the same thing, just below and above a reference point (ambient).
I am starting to sound like a damn uzi engineer.
It's a relief valve dammit.
I'm feeling a little better now.
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43,735 Posts
Long as you don't start sounding like an eyeball engineer, it is okay with me.
You know, the ones that look at the Power Plate and say, "I am an engineer and I know it cannot work."
You know, the ones that look at the Power Plate and say, "I am an engineer and I know it cannot work."
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11,462 Posts
I ordered a few from McMaster Car. Sorry don't have the part number (it was a long time ago) but they are in the catalog and on the CD. BTW - I believe they were in the check valve section! loser usa
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10,284 Posts
moon Prozac, smrozac.
[/QB][/QUOTE]You're welcome.Now can I sneak a smiley in here with your quote?
headbang
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Look up a couple of notes..I posted the mcmaster-carr number and current pricing right off their page.
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