R's Racing Service High Performance Camshafts

Notes

1. Installation:
   1. Since the ultimate high lift has been achieved for both IN and EX with the aim of maximizing torque improvement, a part of the head may be easily processed when the camshaft is installed.  However, no special tools are included.
2. Recommended Parts:
   1. Be sure to replace the valve spring. Recommended products are RRP reinforced valve springs (E-106) or ZC31S2 type or later.
   2. It is recommended to replace the standard head gasket with a super metal gasket to bring out the performance of the cam. Further power up by improving the compression ratio.
   3. Replacing the lightweight valve lifter and inner shim will reduce the burden on the valve spring and improve engine response.
   4. RRP Adjust Cam Sprocket (Trade In Program Only) The cam performance can be further enhanced by installing it.
3. About ECU:
   1. Rewriting of ECU is basically necessary. Since the power and torque characteristics change significantly, please adjust according to your specifications. 
4. Idling:
   1. There are cases where the high cam is installed and the idling rotation becomes more unstable than normal. Stability will increase if you make up for it by adjusting the valve timing or ECU.