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Old March 21, 2005, 04:22 PM   #22
Senior Member
Join Date: May 19, 1999
Location: Near Helena, Montana
Posts: 1,663
Holiday Inn Express, LOL!

There's probably a lot of us that don't understand psi as it relates to combustion. If I understand this somewhat correctly, the psi rating that the labs use is somehow related to gas expansion at a specific point or time very early in the combustion process, or, more specifically, a psi measurement relating to the maximum velocity of a pressure wave derived at a known time or point in the rate of expansion or combustion...?
Sometimes the squeaky wheel gets replaced...

SASS 47015
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