[s-cars] (no subject)

[JShadzi at aol.com]

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[ Picked text/plain from multipart/alternative ]
Rod, if you look at how I have mine installed:

<A HREF="http://www.80tq.com/images/blow%20off%20valve.JPG">http://www.80tq.com/images/blow%20off%20valve.JPG</A>

You'll notice that even though I'm running the Forge valve in blow off (I
have speed density 034efi), the pressure is fed to the side of the valve, or
the top of the diaphram.  What actually opens the valve is vacuum created
during a shift - fed to the top of the diaphram form after the throttle body.
 With this configuration, boost actually holds the valve shut, ensuring no
leaking.  Also, since the valve is not controlled by spring pressure (but
vacuum), the valve can open and close much more quickly, and will only be
open during vacuum conditions.  This is also how the stock Bosch bypass
valves are configured.

Javad

In a message dated 11/3/2002 2:37:50 PM Pacific Standard Time, S4audinut
writes:
>
> I am most interested in the manner they are hooked up to turn them from
> blowoff
>
>           [ o ]  To inlet of turbo
> valves into diverter valves. Mine is in line (  ==II== --> turbo flow ->)
> and the flow of the turbo is lifting the valve and causing flutter, I am
> afraid I am not using it as a it should be. At any rate I have removed the
> spring and now have a piece of 3/4 " hose instead and it is better but I
> fear not good enough.
> Rod