Coil Bind and dead coils

[Jhonno]

What do these 2 terms mean? was just readin through a couple of posts n they cropped up when talkin about H&R race springs..

[Mystikal]

Coil bind occurs whenever a spring is compressed and one or more of the springs active coils contacts another coil. The rate of the spring increases whenever a coil binds since the bound coil or coils are no longer active.

Dead coils are those at each end of the spring that make contact with something. If you have a spring with, say, ten coils, then two of them are dead (inactive) and eight of them are live (active) coils.

[Jhonno]

ah right - cheers for that! explains it perfectly! :D