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Discussion Starter · #1 ·
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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Discussion Starter · #3 ·
Steve,

Do I need to use a regular "Y" fitting to eliminate the flow restrictor?
 

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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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Discussion Starter · #8 ·
I have both the stock bleeder solenoid and the relief valve hooked up. Should I eliminate the stock ECM controlled bleeder? It's downstream of the relief valve.
 

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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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Discussion Starter · #13 ·
Actually a pressure relief valve used in a different application - therefore, one can give it another name - a boost check valve!

Now everyone's happy.
 

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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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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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:D :) :D :) :D moon

Prozac, smrozac. :p [/QB][/QUOTE]

You're welcome.Now can I sneak a smiley in here with your quote?
headbang
 

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