eh2_Trav

iTrader: (1)

I bought a head with an upgraded valve train. Is there a test to figure out what the max lift/coil bind and basically which springs I have? I have it narrowed down to two different springs:
Mystery spring 1: Max lift: 14mm
coil bind: 18.5mm
Mystery spring 2: max lift: 12.5mm
coil bind: 19.5mm
I want to get some all motor cams but I've read I need to match up the cam lobe lift with the springs max lift and I don't know what I have.
So will I have to take it to a machine shop to have the seat pressure measured and is there such a test that exist? My knowledge of machining is very limited.
Any help is appreciated.

odz-fab

im gonna say yes take it to machine shop that can accurately determine this..... or purchase new known springs that will work with the cam you choose

eh2_Trav

iTrader: (1)

Thanks for the reply. I called a machine shop and they said I would need to know the spring height once the spring is installed. Then they could use that known height to give you the coil bind rate and max lift.