VT-565
New Member
i agree this is getting a tad off topic, but just to clarify for the misinformed reading this thread, the ecotec is already equipped with hydraulic roller lifters, roller lifters require a different cam profile and benefit the things immortality stated in his post.immortality said:you can have both solid roller cams and hydraulic roller cams. solid is for outright performance really. roller cams can lift the valve quicker that the old follower etc but need greater spring pressure to make sure the roller stays on the cam cuase if it bounces it will destroy the roller follower very quickly indeed. getting of topic here though. the biggerthe cam the more power you make up high in the rev range but unfortunatly you loose just as much down low where you drive your street car most of the time and therefor would be absolutly no good really:bang:
the bad thing about solid roller lifters is the amount of shock that is transmitted to the roller needles, over time, these needles develop flat spots which get that bad they fall out of their retainer and the lifter collapses, spreading metal through the engine. this is a bad thing.
Anyway, for street/strip purposes, a hydraulic cam will be more beneficial in the long run.