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CNC Machining

  • June 8, 2010

A CNC Machining Center

Computer Numerical Control machining, commonly called CNC, means that all of the actions of the machining center are controlled by a computer program rather than directly by the human operator.

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Platinum Series Cylinder Heads

  • June 8, 2010

The as cast chambers of a Platinum series cylinder head.

The as cast chambers of a Platinum series cylinder head.

The Platinum version of the Dart’s popular Iron Eagle and PRO 1 heads are the direct descendants of Dart’s Pro Stock engine program. wet-flow technology and improved combustion efficiency propelled the project.

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Wet Flow Technology

  • June 8, 2010

A wet flow cylinder, displaying the flow of fluorescent dye.

A wet flow cylinder, displaying the flow of fluorescent dye.

Wet flow testing allows a cylinder head designer to look at how the air/fuel mixture behaves when routed through a head and into the combustion chamber. The air/fuel mixture is much heavier and behaves very differently than dry air, so managing the mixture efficiently gives much better results than just increasing air flow will.

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Billet Aluminum

  • February 3, 2010

Blocks of solid aluminum and various stages of machining a billet engine block.

Blocks of billet aluminum and various stages of machining on billet engine blocks.

The term “billet” generally refers to components which are machined from a drawn or forged blank of aluminum, usually 6061 alloy, rather than a cast shape. Billet aluminum differs from cast aluminum both in alloy and grain structure.

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Oiling System 101: To Restrict or Not to Restrict?

  • December 10, 2009

Tech Tips

With Dart’s vastly improved oiling system, the need to “band-aid” the oiling system with a high volume oil pump is a thing of the past. Using a standard oil pump and today’s lifters, without restrictors, makes engine assembly easier and eliminates the guess work of determining restrictor size.

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Coating Conflicts

  • December 10, 2009

Tech Tips

Dart’s Molybdenum Disulfide based coatings, such as the DC-4 lubricating coating often used on camshafts, are an excellent way to increase load capacity and improve durability… but you need to be selective about the type of break-in oil used on an engine that employs these coatings.

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