Quote:
Originally Posted by 88 coupe
Roller tips will not show enough power gain to measure on a dyno, or a timeslip. The actual ratios on those rockers are said to be more accurate than OEM. If true, it is still not enough to make a difference in anything but a full on racing engine.
Subject engine was described as "mild" so, unless it uses a solid cam, adjustability is not needed. An exception might be a smaller base circle, on an aftermarket cam, that could cause geometry issues. They would be addressed on a case by case basis.
Norm
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Thanks for the tip on the rockers (no pun intended)! It looks like you've just saved me some money. Is the "base circle" of a cam the diameter of a lobe minus the section that causes lift? If a specific cam requires an adustable valvetrain (certain Comp cams, even a few hyd. flat tappet ones, have footnotes that say an adjustable valvetrain is needed) is roller tip rockers all I would need to make my valvetrain "adjustable," or would it need roller lifters too? Is it even possible to use roller lifters with a hyd. flat tappet cam?
Thanks again!
- GoldOlds