Kick down and change up on A500 42RH
I originally had Sonnax Lube regulated pressure regulator valve and manual valve fitted. My transmission builder wasn't sure of whether this had anything to do with it and we didn't know the history of the valve body and whether it had been modified so we sent off a spare valve body to be checked and reconditioned with original type valves. It was checked on the rig in the picture and seemed fine. I'm not sure about the governor but the test port is used for the pressure switches for LU and overdrive and these operate at roughly 45 and 50PSI and come on at around 45 to 50MPH so they aren't miles out.
I originally had Sonnax Lube regulated pressure regulator valve and manual valve fitted. My transmission builder wasn't sure of whether this had anything to do with it and we didn't know the history of the valve body and whether it had been modified so we sent off a spare valve body to be checked and reconditioned with original type valves. It was checked on the rig in the picture and seemed fine. I'm not sure about the governor but the test port is used for the pressure switches for LU and overdrive and these operate at roughly 45 and 50PSI and come on at around 45 to 50MPH so they aren't miles out.