CTS-Legal IMCA Modified Spec, Ovate Wire Beehive Valve Spring Set – IMCA Modified Spec

These CTS IMCA Modified Spec Beehive Valve Springs are constructed using our signature PACaloy super clean wire and are heat-treated in-house for precision spring rates and improved strength. They also receive a multi-peen process, polishing, and a Nano-Peen™ proprietary surface treatment for service life optimization.

IMCA Modified Spec Rule Book Legal

Built using our signature PACaloy super clean wire to ensure strength and durability

In-house heat-treating for precise spring rates and increased strength

Multi-peen process to optimize service life

Polishing to improve operating cycles

Nano-Peen™ proprietary surface treatment

SPECS:

Outer Diameter – Outer Valve Spring-Top 1.077 IN / Bottom 1.282 IN

Inner Diameter – Outer Valve Spring-Top 0.655 IN / Bottom 0.860 IN

Installed Height-1.900 IN

Installed Load-100 PS

Open Height-1.300 IN

Open Load-340 PS

Open Load / Height (Valve Open)-340 LB @ 1.300 IN

Valve Spring Rate-400 PS

Max Coil Bind-1.200 IN

Max Valve Lift-0.600 IN

Valve Spring Series-RPM Series

Valve Spring Type-Ovate Wire Beehive

Primary Market-Circle Track Performance