Lower spring rates on struts valved for higher rates...

[24Dee]

What ill effect does having 6/4 spring rates on c/o's with struts that were valved for 8/6? Is the life and longevity of the strut severly impacted ?

[SoSideways]

You'll have a decently valved set of shocks for the 6/4 spring rate then. It'll be on the stiff side for street driving, but on the track they should prove to be awesome.

[24Dee]

Originally Posted by SoSideways

You'll have a decently valved set of shocks for the 6/4 spring rate then. It'll be on the stiff side for street driving, but on the track they should prove to be awesome.

With the lower rates, shouldn't they be softer on the street and softer on the track as well??? If it's of such benefit to have a lower rate, then why wouldn't the maker, produce them with the lower rates yet valving for a higher rate?

[aznpoopy]

this is actually a basic physics question... classic oscillation and damper scenario.

http://physics.ucsc.edu/~josh/6A/boo...ic/node20.html

with underdamping, the springs compress, rebound, and there isn't enough damping force to steady out quickly. result = bouncy ride.

with overdamping, the springs don't have a chance to absorb the full impact, because the shock absorber is too strong. result = very stiff ride. i imagine the shock would blow out faster as well.

What is the best value of the friction to choose so that the mass comes back to equilibrium most quickly? This is important if you were trying to design shock absorbers for a car. If is too small it just oscillates back and forth for a long time without decaying in amplitude much. If is too large, like in molasses, or tar, then it takes along time just to move the mass at all.

[24Dee]

Originally Posted by aznpoopy

this is actually a basic physics question... classic oscillation and damper scenario.

http://physics.ucsc.edu/~josh/6A/boo...ic/node20.html

with underdamping, the springs compress, rebound, and there isn't enough damping force to steady out quickly. result = bouncy ride.

with overdamping, the springs don't have a chance to absorb the full impact, because the shock absorber is too strong. result = very stiff ride. i imagine the shock would blow out faster as well.

Great link, thank you very much.