[bass]

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.

 

[Steve Wood]

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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[bass]

Steve,

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

 

[Steve Wood]

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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[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

 

[Steve Wood]

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



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[The Radius Kid]

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

 

[bass]

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.

 

[b4black]

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.

moon

Prozac, smrozac.

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

 

[Steve Wood]

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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[Steve Wood]

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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[Steve Wood]

48935K25

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

For the anally inclined!



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[bass]

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.

 

[Steve Wood]

Rich is never happy! nono



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[b4black]

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.

 

[Steve Wood]

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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[Ormand]

If I want one of these for my car,can I get it from Grainger?

 

[Orlando_87GN]

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

 

[The Radius Kid]

b4black

moon

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

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

 

[Steve Wood]

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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