Normally the wastegate is closed. It starts out closed before you start the car, remains closed as you drive the car, only opens if the boost gets higher than the designed limit.

Changing the length of the actuating rod will change the pressure where the wastegate opens, but as this is a safety valve of sorts to protect the engine and turbocharger, you should not adjust this unless you know what you are doing / what the new opening pressure is.

Since the wastegate is closed on acceleration until the boost exceeds the (.95bar?) limit, and that usually shouldn't happen until high in the RPM range at full-throttle, you can now understand how wastegate adjustment will not effect off-the-line performance unless you are dumping the clutch at high-rpm.

If the wastegate is defective/stuck open, this is a different issue and probably not cureable by mis-adjusting the wastegate linkage.

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Gone to the dark side

- Jeff