Recent content by smithdl4

  1. S

    Automotive Race car suspension Class

    Understand that statically for road racing RC should be in center but you don' race statically. Everything is moving with the suspension as the car dives, rolls, and turns. Your saying that keeping the RC in the center as the car moves around is optimum? Thanks in advance. Your class has...
  2. S

    Automotive Race car suspension Class

    Ranger Mike, I've been playing with the Perf Trends software. Was interested to know which direction the roll center ought to move on a road racing car. It appears to be easy to get it to move toward the outside wheel, but very difficult to get. It to go toward the inside of the turn. Seems...
  3. S

    Automotive Race car suspension Class

    Kozy; The bar rate includes the arm length. It is a tubular bar made by Speedway Engineering. Its 37 1/2 inch x 1 1/4 inch x 0.188 wall tubular bar in front using 12 inch arms. Rear is 37 1/2 inch x 1 1/4 x 0.095 wall tubular bar using 10 inch arms. They measure using an Intercomp sway bar...
  4. S

    Automotive Race car suspension Class

    Kozy; As I understand it the bars are rated in LBs per 5 degrees of twist per their manufacturer. Also, I think the wheel rate for both ends would be smaller as the springs are canted over 9 degree which changes the actual spring rate the suspension sees, correct? Ranger Mike; The rear has...
  5. S

    Automotive Race car suspension Class

    Ranger Mike; Thanks for the affirmation on the car being too stiff. Wouldn't the MR be applied to the bar also since it is not being applied directly to the outer ball joint pivot point? Using what you did in your reply, how would you select springs and bar(s) for that example if you had to...
  6. S

    Automotive Race car suspension Class

    Ranger Mike; Thank you for this classroom undertaking. It has been extremely enlightening and, as if you read my mind, you went back and explained how the springs were calculated. I went through what was done early and had lots of questions. This answered those so well that I just went...
Back
Top