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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.
 

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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.



 

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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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Doctors prescribe G-Valves because they ultimately create a run on Prozac! :D



 

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b4black:
Steve Wood:
You have just installed the classic "G-Valve" that drives B4Black over the edge
It's a relief valve dammit! rant

wink
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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Hey Steve, did you here that!
The Radius Kid:

You're absolutely right.
Pressure relief valve.
Again,
The Radius Kid:

You're absolutely right.
Pressure relief valve.
Wait, again:
The Radius Kid:

You're absolutely right.
Pressure relief valve.
:D :) :D :) :D moon

Prozac, smrozac. :p

<small>[ June 02, 2003, 02:00 PM: Message edited by: b4black ]</small>
 

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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.



 

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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.



 

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48935K25

Brass Vacuum/Pressure Relief Valve 1/4" NPT Male
$ 7.33 Each

For the anally inclined! :D :D



 

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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. :mad:

I'm feeling a little better now. :D
 

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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." :)



 

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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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Ormand:
If I want one of these for my car,can I get it from Grainger?
Look up a couple of notes..I posted the mcmaster-carr number and current pricing right off their page.



 
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