04-25-2009, 03:00 PM
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CC Member
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Join Date: May 2008
Location: Brisbane,
QLD
Cobra Make, Engine:
Posts: 2,797
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Not Ranked
Brent,
Beg to differ on the lifter/cam solid vs hydraulic theory.
Years ago people used to convert their hydraulic lifters to solid. 
Running solid lifters on a hydraulic lobe gives no quieting ramps since the base circle on a hydraulic cam is a true circle right up to the opening ramp and down again from the closing ramp.
This gives very noisy operation.
A solid cams' base circle has it's clearance opposite the lobe nose and is gradually taken up to zero before the opening ramp.
__________________
Gary
Gold Certified Holden Technician
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