Here you can watch a Volvo 164 equipped with our new racing pistons during Midnattsolsrally in Sweden.
Congratulations Tom Damberg to your victory in 2012 Midnattsolsrallyt with our pistons!
Item GBD334400SC is well suited for honing. See more info below.
CP Pistons Cylinder Honing Recommendation (for CPN & CPN2)
For use with CP's CPN and CPN2 piston rings, we recommend plateau
honing with a cylinder bore cross hatch angle of 35-40°.
To reach this roughness, the manufacturers of honing machines and accessories
recommend using for a gray cast iron engine block, and Nikasil cylinders:
- Conventional stones #220 - #280 grit or
- Diamond stones # 325 - #550 grit
After honing, with either conventional or diamond stone, the same
manufacturers suggest to finish your honing by smoothing the surface
with a fine grit conventional abraisive (#400 - #600 grit) or to sweep the
bores with a flexible brush or a nylon bristle plateau honing tool. This is
necessary to get rid of jagged peaks and folded or torn material.
IMPORTANT NOTE:
Be sure to confirm with your honing equiment manufacturer that the recommended
stone grit will produce the following Rz and Ra roughness recommendations:
Rz = 59 - 138 µ in (=1.5 - 3.5 µm) or
Ra = 15 - 35 µ in (=0.4 - 0.9 µ m)
Recommendations for installation.
Further recommendations.
