ACHINBAC
Silver Member
Gave the BX some more muscle for Christmas last night. After reading a post about this I ordered some shims from Kubota for the pressure relief valve, & made a pressure gauge assembly with parts from online. I did the testing off the FEL lift quick disconnect male fitting (red arrow in picture). Factory setting was 1775 psi. I used .6mm worth of shims to bump it to 2000 psi @ 2200 rpm (normally don't run it much higher) and 2050 @ 3000 rpm. The picture of the transmission is just to the left of the pto, the lower port is where the valve is located (red arrow). Will let all know if I can feel a difference next time it snows.