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  1. Krazan

    Damper Gas Pressure

    GT6Racer - We sometimes deal with large shaft monotubes, both as a strut, and the dreaded JRZ/Moton dampers. In the case of the JRZ/Motons I will get the majority of my compression forces from the cannister so that I can run lower gas pressure. Loads of hysteresis, but less rod force and the...
  2. Krazan

    Damper Gas Pressure

    Thanks guys. I get it now. For some reason I was having a hard time with it. I plotted a force/displacement curve in Excel and it finally became clear. If I caclulate the rate of the spring and gas pressure combined starting from zero load I get a digressive rate. But...If I calculate the...
  3. Krazan

    Damper Gas Pressure

    OK, Let's try this another way. Another "for instance." An imaginary car has 25 lbs of rod force, and a 1:1 motion ratio. Push down on one end of this imaginary car, compressing the springs one inch, and then abruptly take your weight off, letting the car rise back to ride height. Now...
  4. Krazan

    Damper Gas Pressure

    I have always looked at it in the same way, but have been questioning this lately. I typically calculate a damping curve for a particular vehicle, valve the shocks, and then make adjustments at the track until the driver and tires are happy. For the most part, my calculations get me quite...
  5. Krazan

    Damper Gas Pressure

    I have a question regarding gas pressure in a monotube shock/damper. Conventional shock dynos measure the rod force due to gas pressure, and subtract that force from the measured force values as the shock is being cycled. The reasoning (As explained to me) is that the rod force is essentially...
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