Dave_W
Cones - not just for ice cream
You can use the links to the suspension calculators from here: https://cortexracing.com/support/wheel-frequeny-calculator/
Note the different links for rear heave and bump, and the Suspension Leverage ratios are different for each. In heave (two-wheel bump) both springs work are compressed the same, independent of location. In single-wheel bump, you can picture the axle pivoting on the non-bump wheel - for a coilover, the bump-side spring applies all (or most) of its force and the non-bump side spring applies none; for stock perches, both springs contribute to the bump-side wheel rate but in different amounts per the leverage they have based on their locations.
All that said, I agree that most times proper damping has way more influence on ride quality.
Note the different links for rear heave and bump, and the Suspension Leverage ratios are different for each. In heave (two-wheel bump) both springs work are compressed the same, independent of location. In single-wheel bump, you can picture the axle pivoting on the non-bump wheel - for a coilover, the bump-side spring applies all (or most) of its force and the non-bump side spring applies none; for stock perches, both springs contribute to the bump-side wheel rate but in different amounts per the leverage they have based on their locations.
All that said, I agree that most times proper damping has way more influence on ride quality.