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Wastegate Engineering Ports

Each port controls a separate chamber inside the wastegate. By combining ports/chambers, various boost levels can be reached without a boost controller. Hooking up all three ports shown here will result in the lowest boost level possible. Each port/chamber has its own distinct surface area, which must be reacted against. Different port combinations mean different boost.
Rethinking The Wastegate - Synchronic Wastegates

 Each port controls a separate chamber inside the wastegate. By combining ports/chambers, various boost levels can be reached without a boost controller. Hooking up all three ports shown here will result in the lowest boost level possible. Each port/chamber has its own distinct surface area, which must be reacted against. Different port combinations mean different boost.  View Related Article

 

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