Details
The Pursuit of Maximum Camshaft Efficiency
The concept behind the HKS camshafts was to produce something that the customers would be truly happy with. This sounds simple on the surface but this is something very challenging. When the development team looked carefully at the details, the ultimate conclusion they drew was to look at the core purpose of the cam itself (to smoothly allow air into and out of the combustion chamber) and a good cam would do this job for the maximum efficiency.
Variation line-up
SS-CAM (STEP1)
HKS SS-Cam are designed to fit unmodified cylinder heads with stock Valve Springs to be a simple bolt on cam kit that can give added performance without changing any other parts or the valve timing.
By changing cams, cam duration and lift is altered making the ideal valve timing different also. HKS SS-Cams have been tested on the engine bench to find the optimum valve timing and the knock pin has been relocated in a modified position to offer perfect valve timing by simply replacing stock cams with no need for measurement or adjustment.
STEP2 / STEP3 (Pro)
STEP2
Offering more power over SS-Cams through increased lift. However, strengthened Valve Springs (RB26 also require Piston recess modification and Cam clearance on head) are required.
STEP2 / STEP3 (Pro)
Camshafts designed for further power and high rpm use over step 2. The following parts will be necessary for installation: (SR20) HKS Lash Killer Kit, Need to change the strengthened Valve Springs.
In addition to the world's strongest factory replacement STEP 1 camshaft, new STEP 2 & STEP 3 that can have more power and higher RPM are available. We have developed it with the newest profile design and through comparison test of HKS products and other companies’ products. Experience the HKS power!
* STEP 3 is the valve timing change only.
Feature
STEP 2 / STEP 3 need more than 450ps and rev limit of 8000rpm/9000rpm engine.
We have developed it with the newest profile design and through comparison test of HKS products and other companies' products.
As you can see the graph of the test result, the performance gets better in 6000rpm to 6500rpm, and by using with a big turbine will have a better results.
* If the turbine size is smaller than the GT3037S, “the world’s strongest factory replacement camshaft STEP 1” has better match.
Please check the separate “The camshaft selection target” for recommendation.
Remarks
STEP2
Separate strengthen Valve Spring or head system STEP 2 is required. (rev limit: 8000rpm)
STEP3
Separate strengthen Valve Spring, Lash Killer Kit, or Head System STEP3 is required. (rev limit: 9000rpm)
The valve timing is set for both power and torque. Please adjust the valve timing with slide sprocket for your needs.