How to Adjust the Boost Turbo

1. Alter the rod length for a standard Wastegate actuator to open the valve, increasing the amount of boost going to the engine. Conversely, close or shorten the valve to decrease the boost for the vehicle.
2. Look for setting adjustments on the vehicle's regulator valve if your car uses a mechanical control system for the boost pressure. This often involves a knob or dial to adjust the boost on the fly.
3. Twist the adjustment screw to alter the spring tension in an external Wastegate. Increasing the amount of pressure increases the boost, while the opposite is true as well.