dyno series info pg 5

• The shims start to open at 2ips when the rebound clicker is at 10 out.  We refer to the flow area through the rebound circuit as the rebound bleed area.  This rebound bleed area has the most influence on the compression numbers up to about 5ips.  At 5ips, the bleed area is close to maxing out.  That is to say, the flow rate through the bleed area is close to it's maximum, and any further pressure drop (from increase in velocity) will not increase the flow.
• At 10ips the bleed area is maxed out, and the emphasis for increases to the compression forces shift to the shim stack.
  • This is an good place to see how your piston preload and/or initial stack stiffness is going to control the low speed (ls) damping. 
    • We will consider 5 - 10ips to be the low speed damping velocities.  We highlight 5ips, and refer to this as low speed (ls), but we will often look at both 5 and 10ips.
• Quick note on terminology:  We call 2 ips the opening speed (os) , 5 - 10 ips the low speed (ls) and 50 ips the mid speed (ms) .  These are generic terms and are simply used to give us a basis for comparison.

• Acceleration rate.
• As the velocities increase, the compression force numbers increase. 
• We look at the rate that the damping force increases from speed to speed.  We call this the acceleration rate, or ar for short.
  • We look at pounds force as well as the percentage of change.
• From 10 - 70 ips the compression force numbers increase with velocities. 
  • Notice at 20 - 70ips the change in force drops off as velocities increase.

•   [dyno series tutorial pg 6]