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Recent content by cofactors

  1. cofactors

    Best high performance Valve material

    What is the best valve material for a high performance drone engine, have tried 17-4ph does not do well at higher temps (above 900F) valve diameter is .54 for intake .49 for exhaust. The engines I have developed are a four valve per cylinder Dual Overhead Cam boxter twin similar to a BMW...
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