CP-CARRILLO Product Catalog

PISTON FEATURES

VR Sweep

Plunge bosses INTERNAL MILLING FEATURES

Swept valve reliefs relieve fuel puddling and shrouded valves for a better fuel curve and allow the engines operation to improve during the overlap stroke.

Machining process done to the pinboss that removes material, either internally or externally, for added weight savings.

Kellered Dome/ 3D Crown Machining

Shelf mill

Special engineering and manufacturing processes that matches the piston crown precisely to the cylinder head to get max compression when needed. This can also be used to regenerate a hand massaged piston crown on the CNC for ease of du- plication.

A milling program that removes weight on the shelf of the piston below the oil ring, only needed on forged side relief or “X- Style” pistons when certain design criteria makes it necessary. There are many dif- ferent options, all depending on pin length, desired skirt width and the amount of weight to be removed. Skirt milling is a procedure that removes material from the inside of the skirts to remove weight. This option should be carefully analyzed for the application, as excessive milling may lead to shortened piston skirt life. An additional milling procedure that re- moves material and weight from a small box shaped portion of the piston skirt and only reduces the skirt strength by a small amount. Among the many unique technological ad- vances CP-Carrillo uses to ensure our cus- tomer’s performance edge, Maximum Inter- nal Lightening (MIL tm ) has quickly become one of the most effective. Although CP-Carril- lo has one of the largest ranges of forgings available in the industry, there are still times when a customer’s requirements may result in a piston that is not an ideal match to the forging used. As a result, some areas may be thicker than the application may require. As we all know, more weight means a slower These windows can be used with fully boxed pistons and allow for oil to reach the small end of the rod during engine opera- tion and also remove unnecessary weight from the piston. Not all boxed pistons need these windows; it depends on application and duration of usage.

Lateral Gasports

Lateral gas ports are horizontal slots in the top of the top ring groove and they provide a passage for combustion pres- sure to get behind and above the top ring, increasing ring seal with reduced radial rings. Lateral gasports are often used over the vertical option when carbon build up (which could clog vertical gasports) may be an issue.

Rotary skirt mill

Window Mill Skirt

Vertical Gasports

CP-Carrillo coordinates piston-rod designs and specifications to allow these parts to integrate precisely and match the cus- tomer’s intended usage. This is an advan- tage that virtually no other piston or con- necting rod manufacture can claim. CP-Carrillo offers custom laser marking such as serialization, bar-coding, text, in- cluding any TrueType font, alphanumeric serial numbers, data codes, logos, part numbers, graphics, and data matrix codes. Vertical holes from the deck of the piston to the back of the top ring groove which allow combustion pressure to directly enter the top ring groove area for maximum ring seal. When not under load, the ring has normal tension for reduced friction.These are most commonly used for drag race ap- plications.

Box Window Milling

Custom laser logo/Serialization

INTRODUCTION

Underhead Milling (Lighten Up with MIL)

Piston and Rod Combination optimization

acceleration curve and more strain on the other internal components. Our MIL process allows us to remove that unnecessary material, freeing up that horsepower and re- ducing the load on the other components in your engine. an advantage that virtually no other piston or connecting rod manufacture can claim.

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