Measuring Exhaust Ratios

Discussion in 'PSI Superchargers Tech Questions' started by ITS IN MY BLOOD, Nov 22, 2019.

  1. ITS IN MY BLOOD

    ITS IN MY BLOOD TAFC

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    How do you measure to know what Ratio your exhaust Rockers are ???
    Brad fat heads red stands,..
    I know how to measure the intakes but have found nothing for exhaust

    Exh. Single rib Brad Rocker. How to tell if they are 1.52 or 1.6 or 1.7

    Thanks
    Vic
     
    #1
    ITS IN MY BLOOD, Nov 22, 2019
  2. MaineAlkyFan

    MaineAlkyFan Active Member

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    Dial Indicator? Measure indicated .100 lift at the pushrod adjuster & compare to indicated lift at the spring retainer.

    Chris Saulnier - Team Tigges
    Mechanic Falls, Maine
     
    #2
    MaineAlkyFan, Nov 23, 2019
  3. Cdn526

    Cdn526 Member

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    single rib exh is 1.55
    dbl rib exh is 1.65
     
    #3
    Cdn526, Nov 27, 2019

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