11-17-2009, 05:55 AM
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CC Member
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Join Date: Dec 2001
Location: Louisville,
KY
Cobra Make, Engine: I'm Cobra-less!
Posts: 9,417
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Not Ranked
Steve,
It's REM isotropic finishing.
The short and skinny of it is that the parts are chemically treated, then tumbled. This removes the "peaks" from the parts and just leaves the "valleys". This produces a smooth microfinish and reduces friction, noise, and vibrations.
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