screw blower identification

Discussion in 'PSI Superchargers Tech Questions' started by bogfather, Feb 8, 2012.

  1. bogfather

    bogfather New Member

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    How does one tell the differene between a D psi and a C psi? I have what is suppose to be an older D in my shop and can see no numbers/markings on it at all, besides the sfi plate.
     
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  2. lamb motor sports

    lamb motor sports New Member

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    if you go to the post, close to bottom page title, psi screw at 85% o.d. v roots unlimied o.d. 2nd page will hanna telles how to tell diff. from c to d screw blowers
     
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