After getting my wideband O2 sensor installed I disconnected the electrical signal to the N75 so that I could check the boost pressure that the Mamba wastegates allow with just the preload.

I am glad to see a mostly consistent level of boost being held, but I had set the preload to 12 psi prior to installing the engine in the car so I was expecting to see closer to 12.  I’ll next be double checking that the preload is equal between the two Mamba wastegates.