April 20 Weekly Open Thread: "What Is A Blueprinted Engine?"

"Hey, I have a hot rod with a blueprinted engine!"

Many of us have heard somebody say that, then we nod our heads in agreement. And some of even have a slight idea of what that means. So to help explain this, we turn to EngineBasics.com, who at least partially define Engine Blueprinting as:

"A true blueprinted motor though, is one were every single part has been measured and matched exactly to a tolerance that FAR EXCEDES the manufacturers original tolerances. On a blueprinted motor one could say there “are no tolerances”, since everything is matched at times to a hundred thousands of an inch. The amount of balancing a blueprinted motor needs is so low its off the scale. All bearing and races are measured to be with-in thousands of each-other."

They can say that a lot better than I can.

Therefore, basically, a blueprinted engine is one built to incredibly tight tolerances, mainly to avoid power-robbing vibration issues.

So there. And of course, this is also the place to discuss anything else even ever so slightly automotive related. With or without blueprints.

--That Car Guy (Chuck)

Image Credit: Our blueprinted engine example came from EddiesPerformance.com.

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