How to control boost in a wastegate system?
How to control boost in a wastegate system? In order to get more boost than the spring pressure in the wastegate actuator, pressure needs to be bled off or blocked from the hose going to the wastegate actuator. This in turn delays when the wastegate will start to open and control boost. Think of this as tricking the wastegate as to what boost it's seeing. When does the wastegate actuator start to open? Boost pressure is applied to the canister and once the boost is higher than the spring pressure inside the canister, the wastegate actuator rod starts to move...