shock co-zeta definition

co-zeta calculates compression numbers based on spring rate   [see zeta_backwards_shc.xlsx] co-zeta produces a TARGET compression damping force curve for co wogas the zeta curve doesn't change, it just reverse engineers the compression numbers based on spring rate There are currently two co-zeta curves to choose from: 124_73_35_b 130_76_38_b Each co-zeta curve is broken down further into c-zeta and ca-zeta c-zeta reverse engineers c force ca-zeta reverse engineers ca force co wogas compression numbers = (cforce + caforce + pressure fudge + source drag force at 1ips)     [sh target gas force explained]     [sh target drag force explained]

changing co-zeta target

To make co-zeta target curves softer or stiffer, multiply by the zeta correction factor For example, SX might be 130_76_38_b x 1.6, indicating the curve is 1.6 times stiffer throughout the entire range

source of co-zeta

co-zeta target curves are created from a good baseline source test When we create a new co-zeta curve from the source test, we use that tests dynamic drag force at 1ips Dynamic drag force varies from shock to shock, and within each test it fluctuates through the velocity range This makes it difficult when comparing actual dyno numbers to target numbers For this reason the compression target numbers = (cforce + caforce + pressure fudge + source drag force at 1ips) - Lev Ratio > [create targ] & [compare]  displays the co-zeta curve as a reference Sh Dyno . press targ  uses the co-zeta curve to reverse engineer the compression forces, but the curve is not displayed on the page

co-zeta's affect on compression numbers

Example comparing 3304 vs 3141 if co-zeta is 8.6% stiffer at 50ips then co wogas is 8.6% stiffer at 50ips one-to-one ratio if c-zeta is 9.2% stiffer at 50ips the c force is 9.2% stiffer at 50ips one-to-one ratio if ca-zeta is 9.2% stiffer at 50ips the ca force is 9.2% stiffer at 50ips one-to-one ratio CONCLUSION: all one-to-one ratio

co wogas target numbers and drag force

We considered using actual drag force in co wogas target numbers HOWEVER, this will not work Target is target regardless if the actual shock drag is different than source shock drag - The goal is to hit the target co wogas c force is not influenced by drag ca force is not influenced by drag CURRENT THINKING, if the shock has less drag than target, you do not need to make it up. Get your shocks c force numbers to match target numbers, and the drag is what it is. This is assuming the drag is within normal range of +/- 5 lbs.  If the shock's drag is greater than 5 lbs you should address the core issue. As a general rule, drag will be higher with a new piston band and oring.  Within a short amount of time the drag force will lessen.  Over an extended length of time the drag force increase due to breakdown of oil and glazing on piston band. ALSO, if actual drag force is much different than source drag, it affects co wogas at low velocities and throws off the r/c ratio.