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.
Tuning: To gain ultimate power one should tune on a chassis dyno. Order 2 cam gears for best results and tunability (one for the intake cam and one for the exhaust cam.
These cam gears fit 2JZGE and 2JZGTE engines (Lexus and Toyota).
- Lexus GS300 '93-'02
- Lexus IS300 '01-'02 : The IS 300 has Variable Valve Timing which means your intake cam and valves are being constantly adjusted for maximum power. The exhaust cam and valves are not being adjusted at all. We have found that using a cam gear on the exhaust side can add up to 9 hp! It is recommended that only a skilled mechanic install and tune any cam gears due to their difficulty. The intake cam gear is not required. We have found that setting the exhaust cam gear to -4 marks on the cam gear (-8 actual degrees) will yield the most gains.
- Lexus SC300 '92-'00
- Toyota Supra NA and Turbo '93.5-'98: TUNING TIP for Supra Twin Turbo '93.5-'98: we have found that setting the exhaust cam gear to -3 marks on the cam gear (-6 actual degrees)and +1 mark (+2 degrees) on the intake side will yield 10 rwhp+.
