I ordered the performance valve springs from the Fierostore a month or so ago. These single coil springs do not come with dampers.
Question: do you need to install dampers in these, or just run them as is?
BTW, anyone know what make/model these springs actually are? based on the open and closed spring pressure, they look quite similar to the Comp Cams 983 springs, which look to be well matched to a 2030 cam with 1.6 rockers.
Posts: 712 From: A cold, miserable place Registered: Jan 2008
Took a closer look at the springs, they are a dual spring design (or perhaps it's just a spiral damper inside), so the stock dampers won't fit. Since the stock dampers also act like a shim, I'll just have to ensure that I get the correct shims to provide the 1.700 installed height.