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Old 05-08-2013, 08:04 AM   #13 (permalink)
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Join Date: May 2008
Location: Middle Tennessee

Originally Posted by doctercookie View Post
would using a heavey valve spring and a light main spring be good or bad? and could haveing your IVG screwed all the way in a big problem with effeciency?
If you are using a heavy valve spring you should have a shorter dwell time (time the valve is open to let the air push the ball out). But, if having to crank the IVG in all the way with a light spring is the only way to achieve velocity then you need a lighter valve spring. There is a balance between the two springs and your regulator to get best efficiency.
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