
SP Switches for Quick Spool Valve or Boost Activated Cutout "Mac Valve"
FOR QUICK SPOOL VALVE USERS: 2 Options for Quick Spool Valve Control: QSV control Option #1: Mac Switching Valve Solenoid used to delay the opening of the QSV to allow it to further offer spooling gains. This is to be used in STANDALONE EMS Systems such as the ProEFI and AEM EMS. QSV control Option #2: Mac Switching Valve Solenoid and Hobbs Switch used to delay the opening of the QSV to allow it to further offer spooling gains. This is to be used in PIGGYBACK applications. FOR BOOST ACTIVATED EXHAUST CUTOUT USERS: 2 options for Exhaust Cutout control: Cutout control Option 1: Mac Switching Valve Solenoid used to delay the opening of the Boost Cutout. This can be useful if the Boost Cutout is opening too soon for you and you want to keep noise down in the lower RPM range. This is to be used in STANDALONE EMS Systems such as the ProEFI and AEM EMS. Cutout control Option 2: Mac Switching Valve Solenoid and Hobbs Switch used to delay the opening of the Boost Cutut. This can be useful if th