Tomei - VALVE SPRING SET RB25DE(T) R33 TYPE-A (TA304A-NS06A)

Type A
Max lift ~8.50mm
Note: For Hydraulic lash adjuster camshafts

High quality designed springs is required to transfer the exact movement of the camshaft to the valves at high engine speeds on high performance engines. The TOMEI products are always engineered with precision in mind to suit the user’s needs. So with this in mind careful choices in material selection is made with surface coating and other technologies. Then the pre-production products are put through an extensive testing program for checking durability, quality and performance. We spend time and money to help you save your valuable time and money.


Development target

• Reliability in high RPM, and improvement in an initial response　
• High durability against metal fatigue
• High durability against the shocks from jump and bounce　
• High durability against surging　
• High sag resistance