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Old 10-31-2009, 10:38 AM   #1
joff
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Join Date: Dec 2008
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I think I remember hearing the newer models used some sort of coating on the inside of the compressor housing that was designed to be eroded away by the compressor blades during breakin. Supposedly would make for really tight clearances that were part of the secret to acheiving 80+% peak adiabatic efficiency.
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