Quote:
Originally posted by Michael C Henry
If someone could get pressureized oil from the lifter gallery to the roller needle bearings they might last longer.
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Crower (HiPPO option [for High Pressure Pin Oiling])
Crane (Pro Series)
(And possibly others)
Do exactly that.
It also has a lot to do with spring pressures. Generally, solid rollers are very "BIG" cams, and require high spring pressures not suited to longevity. This is beginning to change, as Crower makes "Street Rollers" and I am very happy with mine so far.
There have been quite a few folks displeased with the hydraulic rollers in FE's floating very early, seems that the weight of the valve train makes it difficult to select springs heavy enough to prevent float, but light enough to allow the hydraulic roller to work properly.
YMMV
