Quote:
Originally Posted by CompClassics
“I think the contour of the cam, after the lobe, is different between solid and hydraulic cams.”
This was what my question was mostly regarding, would the less aggressive profile of the camshaft allow for longevity of the valve train?
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It’s my understanding, that with solid lifter cams, after the value closes, the lobe decreases another .015”, whatever the lash is, and the lobe remains constant until the next time the valve opens, when the lobe ramps up again. This is in contrast to a hydraulic cam, where after the valve closes , the lobe ever slow gradually decreases in lift until the valve begins to open again. Which surprised me when I read in the engine masters challenge, i think the one engine was using solid lifters with a hydraulic cam.