cheadder.ep82 Posted May 24, 2011 Posted May 24, 2011 have a hks dumpvalve hus wondering what the screw does on the back? Quote
madmax_926 Posted May 24, 2011 Posted May 24, 2011 it is an adjustable bolt to adjust the sound of the bov lettin it flutter or dump Quote
cheadder.ep82 Posted May 24, 2011 Author Posted May 24, 2011 which way makes it flutter and which way makes it dump? Quote
N80Jamie Posted May 24, 2011 Posted May 24, 2011 Go twist it one way, take it out for a spin. Twist it the other way and do the same. Then decide which one you prefer and keep it there, Simple! Quote
Fro Posted May 24, 2011 Posted May 24, 2011 Pretty sure tightening (screwing in) makes it chatter as it stops the valve opening And loosen (screwing out) makes it dump Quote
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