Changes by last author:
Changed:
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Com is connected to the boost source (ie the inlet manifold)
NO is connected to the actuator |
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Com is connected to the boost source (inlet manifold, but rather pre-throttle. The closer to compressor the safer)
NO is connected to the actuator (wastegate-bottom, so it gets boost with an unpowered solenoid) |
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If you use a (1mm or so) restriction to feed boost to wastegate-bottom and control by "bleeding" airpressure, than the NC port is used (which bleeds to Com when the solenoid is powered). Bleeding from Com would not work well, as it bleeds to NO without power, and to NC with power (blind-plugging NO could work, but just an unnecessary point of uncertainty). |
| The "sense" of this changes slightly for an external wastegate as these have a 2 port actuator - one for "open" and one for "hold closed". I will throw some diagrams together if you like... |
| The "sense" of this changes slightly for an external wastegate as these have a 2 port actuator - wastegate-bottom for "open" and wastegate-top for "hold closed". I will throw some diagrams together if you like... |