alright i have a few questions involving valvesrpring technology. i want to know if anybody could explain the advanteges of using dual valve srpings over single valve srpings if they were the same strength. i know dual valve springs are better than singles but thats only because they are stronger what im saying is what makes manufacturers use a dual valve spring design over a single valve spring

 

Dual valve springs of the same equivalent spring rate as a single spring will allow you to use a thinner wire. This lets the spring compress more before it binds, giving you more lift. Dual valve springs also have the advantage of having a self dampening capability. This can be achieved either through interference of the springs or by virtue of the fact that they're different sizes anyway, and therefore have different resonances. A valvetrain that reaches occillation is not a happy valvetrain...

 

if you're asking if you should or shouldn't use Crane single valve springs, go ahead. i've been using them on my teg w/ Crower 404's with 11.3mm of lift and they've been great. Crane says good to 10,000rpm at 0.500" but i'll never be able to attest to that. plus, it has a lot to do with ramp angles as well. all i know is i'll never see past 8500 and i'll never buy another cam.