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Old 05-08-2012, 03:29 PM   #1
k6ng6r00
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polished impeller/volute

Is there anything to be gained from polishing the impeller and the inside of the volute on a turbo/ centrifugal supercharger? It is still rough from casting on the inside of the impeller fins and inside the volute... cant imagine thats good for air velocity

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Old 05-08-2012, 06:02 PM   #2
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Maybe Ion can chime in.

Personally, I think not much of a gain to really make much or noticalbe difference
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Old 05-08-2012, 06:45 PM   #3
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I think im going to pass... i looked into maybe a polymer coating to smooth out&reduce coefficient of friction... could even probably get it done in the lab at school (im a plastic engineering student) but i would be afraid i would mess up the clearance for the impeller blade with a coating, or make it too big with a polishing.
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Old 05-08-2012, 06:53 PM   #4
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I almost wonder if the casting helps grab air and move it or
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