S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

Want to compare either N75 or MBC, or both N75+MBC in the same half hour? --->

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Old 05-21-2004, 07:39 AM
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Default All would act cumulatively like leaks in the pressure line, though. But here's a thought: --->

Going back to my original scheme, you could replace my two-way-valve with your switching solenoid valve, and set the MBC for racing boost. If your turbos can take the racing boost, they can live with momentary spikes at that pressure.

And as for the "pressure" loss from N75 actuation, I'd just ignore that because of the restrictor in the N75.

BTW my original scheme was only supposed to make quick back-to-back testing possible. But, I like your idea for "operational" use.

Now where to find a small enough switching solenoid valve?
Old 05-21-2004, 08:37 AM
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Default Do you want a switching (3-way) solenoid valve....

...OR an on-off (2-way) solenoid valve. Not sure I'm following this latest idea!?


Anyway, here's a switching (3-way) solenoid:
<A href="http://www.boostsciences.com/solenoids.html">Click</a>


If you wanted to get really *fancy* you could start opreating the solenoid valve using a pressure switch
Old 05-21-2004, 11:00 AM
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Default By a two-way-valve I mean flow from a common port to either of two other ports. --->

I guess some people call any valve with three ports a three-way-valve. Thanks for the link.
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