How do you calculate Gross Valve Lift, using different ratio rocker arms?
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Joined: Jun 1999
Posts: 90
From: Williamson,WV,USA
How do you calculate Gross Valve Lift, using different ratio rocker arms?
Cam card shows .571in .583ex, Iam using 1.5 on the intake side 1.6 on the exhaust. What is the gross valve lift using the rocker arms? Thanks
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Joined: Feb 2003
Posts: 715
From: Martin Mi
divide your valve lift by 1.5 and than multiply it by 1.6. In your example you would take your intake (571) divide it by 1.5 and get 380.6, than multiply it by 1.6 and you get your new lift (609) Hope this helps, prorac1
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Brandon Wittmer
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