I did a drive today with the N75 valve electronically disconnected in order to check how the boost profile looked when only on wastegate cracking pressure.
The pre-installation check of the wastegate preload showed the wastegates to be set to open around 7.5 psi:
Cutting coolant adapter band
Logging the boost pressure on the road confirmed that the wastegates appear to be functioning correctly at the specified preload reading.
