Re: <misc>Balancing and Blueprinting?

[Jerry Brown <jerbrown@xxxxxxxxxxx>]

Balancing an engine refers to a procedure where the rotating bits and
pieces of an engine (crankshaft, connecting rod,  and piston assemblies)
are balanced. Involves matching the weights of all the piston assy. and
rods, then dynamically balancing the crank for that weight. The counter
weights of the crank are drilled or weighted to accomplish this.

Blueprinting refers to a set of procedures that bring the tolerances
within an engine to a given specification (usually - but not always -
"factory specs").

- -jerry

Ron Browne wrote:

> Now that we've completed the bore and stroke thread, maybe someone
> could
> explain another process that eludes me: "balancing and blueprinting"
> an
> engine for more power. I assume the cost/power ratio must be
> relatively
> high, as I don't recall ever hearing it mentioned on this list...
>
> Ron Browne
> 1992 318is
> Bowie, MD

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