Traditional methods to limit oil pressure have been with a restrictor

weld-on adapter

Brown/Red 11psi Middle Spring and Brown/Pink 7psi Outer Spring (installed)

The TD42T 4

Clutch Kit - Xtreme Performance Heavy Duty Sprung Ceramic 430Nm 580kg (20% inc.) KTY23016-1B SL-01 Traditional methods to limit oilXtreme Performance sprung ceramic kit 1B Recommended for: Motorsport ApplicationsThese kits are available with sprung ceramic friction discs and are designed for motorsport applications where higher heat and torque capacity is required. These can also be used in some road applications. Specifications: Torque capacity 430Nm Clamp load 580kg 20% Increased over standard Sprung Ceramic Friction Disc Heavy Duty Pressure Plate Kit contains everything you