Quote:
Originally Posted by 1Ratty64
Solid rollers are mostly delegated to competition use because they have reduced mass over hydraulic rollers and they are solid so they are not prone to the hydraulic pump up or bleed off at extremely high rpm. Reduced mass valve train that stays consistent throughout the entire RPM range.....sounds great.
Only problem with solids in street cars is they are noisy as hell, increased wear on valve train items because of impacts, require frequent lash adjustments and no one cruises the street holding 8-9K rpm so why even use them if the negatives are going to outweigh the positives in what you plan to use the vehicle for. If you are building a drag car that has a cam with a super fast ramp rate that might make a trip to town once or twice a month, then sure....but if you are going to be putting more street miles down than strip miles then your gonna regret it.
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It does sound great! But not the noise part, or the harsh wear! My harley shovelhead has solid roller lifters and come to think of it, they are noisy when they get loose.