​The HKS 22002-AT001 is a high-performance intake camshaft designed for the Toyota 2JZ-GTE engine without Variable Valve Timing with intelligence (VVT-i). This camshaft is engineered to enhance engine performance, particularly at high RPMs, making it suitable for motorsport applications such as drag racing.​

Key Specifications:

• Duration: 280 degrees​
• Valve Lift: 9.3 mm
• Valve Timing: 113 degrees​
• Compatibility: Designed for Toyota 2JZ-GTE engines without VVT-i​
• Intended Use: Motorsport and high-performance applications

Additional Information:

• Performance Benefits: The 280-degree duration and 9.3 mm valve lift are optimized for high RPM performance, aiming to deliver increased horsepower and responsiveness, particularly beneficial in competitive racing scenarios.​
• Installation Requirements: This camshaft is designed as a factory replacement, requiring no modifications to the cylinder head or additional parts. It is compatible with vehicles that have undergone inner shim modifications.

Installation Instructions

1. Before Installation

   • Check whether your vehicle has an engine that is compatible with this product by referencing the vehicle’s registration.
   • Remove the product from the packaging and inspect for any shipping damage.
   • Ensure you have all necessary replacement parts and special tools available.

2. Removing Stock Parts

   • Disconnect the negative terminal of the battery before starting the work.
   • Follow the manufacturer’s engine service manual for camshaft replacement.
   • If the camshaft cap is stuck to the cylinder head, be cautious when loosening the bolts.
   • When removing parts, inspect them thoroughly. Replace defective parts and clean reusable parts.

3. Installing the Camshaft

   • Thoroughly clean the camshaft with kerosene or similar before installation. Ensure there is no debris or dirt in the oil passages or screw areas.
   • Check that the cam lobes and journals are free from burrs and dirt, and apply fresh engine oil to the camshaft.
   • Fill the camshaft’s internal area with engine oil.
   • Be careful when tightening the cam cap; if done incorrectly, the camshaft may break. Double-check the tightening procedure.

Post-Installation Checks

• Check the valve clearance and replace shims if necessary. After rotating the camshaft, verify the clearance again.
• The engine's output characteristics may change with the valve timing. Ensure the timing is correct to prevent valve-piston collisions.
• Always check for oil, coolant, and air leaks to avoid engine damage.
• Follow the service manual for proper installation procedures and reconnect the negative terminal of the battery.
• Before starting the engine, remove the spark plugs and turn the starter motor for a few seconds to raise the oil pressure.
• Avoid high RPM operation immediately after installation; break in the engine gradually.

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