STEP PRO
Features V CAM system for higher levels of tuning compared to Step 1 and Step 2. Specially designed cam has duration of 264°, valve lift 10mm. Reviewing cam material, profile and valve timing change, Step Pro is suited to higher power outputs at high rpm. Billet camshaft is used to enhance strength even when used with upgraded Valve Springs at high RPM (recommended limit 8800rpm). Added strength facilitates a hollow cam design has allowing Step Pro to be 560g lighter than Step 1 and Step 2. Valve timing has 50° adjustment from 80°~130° Exhaust cam can be selected to suit vehicle specifications. Step 2 Valve Springs are required. Recess modification of the cylinder head is required.
Test vehicle specification
Engine: HKS RB26DETT 2.8L KIT STEP2
Exhaust Camshaft: HKS Camshaft STEP2 272°Valve lift-10.2mm
Turbine: TO4Z (Boost-1.2kg/cm2)
CAT: HKS Metal Catalyzer
* This result on the graph below is obtained by in-house engine bench test. The result may vary depending on measuring instruments
Complete Parts
Required Parts
VALCON TYPE-RB26 Exhaust Camshaft
STEP 1 - Recommended : GT-SS/STEP1 256° GT2530/STEP1 264°
STEP 2 - Recommended : STEP1 272°
STEP Pro - Recommended : STEP2 272° or above
Valve Spring
STEP 2 - HKS Uprated Valve springs (for increasing maximum RPM, Sold separately)
STEP Pro - HKS Uprated Valve springs required (Sold separately)
Piston
STEP 1 - Stock
STEP 2, Pro - HKS Piston for valve⇔Piston Clearance
Oil Pump
HKS Oil Pump recommended
Head Modification
STEP Pro required some machining to allow for cam lobe movement
Precautions for Use
【Maximum RPM】
STEP 1 - 8,000rpm (Stock Rev Limiter)
STEP 2 - 8,000rpm (With Stock Valve Springs) 8,500rpm (With HKS Valve springs, Sold separately) STEP Pro - 8,800rpm (With HKS Valve springs, Sold separately)
【Oil Temperature, Water Temperature】
If oil viscosity is low, oil pressure may not reach adequate levels resulting in valve timing not reaching desired values. Valve timing will not increase when water temperature is under 60°C
【Recommended Oil】
SUPER OIL (RB), Racing Pro Oil 10W-50
【Timing Belt】
Check every 10,000km for wear and tension. Adjust or replace if necessary.