HKS Adjustable Cam Gears allow for fine tune adjustments to cam timing to maximize engine performance and tailor power characteristics for various driving conditions.
Either with OEM or HKS Camshafts, adjustments can be made to tune an engine’s powerband to an optimum RPM range for a particular application. By using a Vernier scale, a valve timing adjustment tool that uses sub scale, a more accurate adjustment is possible because it provides the crank angle in 0.2° increments. HKS cam gears are constructed of anodized precision-machined aluminum plates and incorporate laser-etched indexes in 2° intervals. The full aluminum versions of the HKS Cam Gears are constructed completely of aluminum (except for the bolts), thereby reducing overall weight and resulting in decreased friction loss and greater precision timing. Precise valve timing can be adjusted and set within the range of ± 20° in 2° intervals by referring to the laser-etched degree indexes and the "A" (advance) and "R" (retard) directional etchings on the cam gear face.
Note: Cam Gears shown may not be the unit for your application.