Gettin ready to purchase this bov, just need to know what the spring rate is indicated for and does it matter on which I should get. Thanks!

Oh ya
Should I base the spring rate off hp

 

My Tial 50mm bov came with a -7psi spring (black) and I traded it for the -11psi (unpainted) spring. This solved my compressor surge I had at light boost blow off with the black spring.

 

One needs to check their vacuum to determine what size spring is needed.

http://www.tialmedia.com/documents/BOVspc.png

For most hondas -11psi spring is to be used.. (Yes, even if you're running under 10psi of actual boost pressure.. its not based upon the amount of boost pressure you're going to run.)

 

Thank you kid sir