building for STS kit@5psi
The valve springs arent that good to begin with. Even with a mild amount of boost it is a good idea to replace them. We have had many cars float the stock springs at low psi; sometimes even at 5. We had a built motor that had 918's, but with a .595 lift cam and 13psi they would float. .595 was at the limit for them and then add boost and they are done.
Teching In
Joined: Oct 2004
Posts: 37
Likes: 0
I had valve float at 5400 with 6psi of boost with the sts on my camaro with 23k miles on it. I went with manly valve springs and titainium retainers and meth with 8 psi of boost and no power loss actualy i was still making power at 6300 rpm. So i would say yes get new springs your paying for dyno time why not go ahead and get them so you dont have to do it twice.
TECH Regular
Joined: Feb 2003
Posts: 451
Likes: 0
From: Spring Hill, TN
Originally Posted by eas020223
I had valve float at 5400 with 6psi of boost with the sts on my camaro with 23k miles on it. I went with manly valve springs and titainium retainers and meth with 8 psi of boost and no power loss actualy i was still making power at 6300 rpm. So i would say yes get new springs your paying for dyno time why not go ahead and get them so you dont have to do it twice.
