Solid lifter / Hydrualic Cam

you don't have to read this article!

I am a simple engine manufacturer who has worked for more than 35 years with racing engines on mixed circuits. even if I love dragsters, it is a discipline very far from my everyday reality.
but I just wanted to tell you a little bit of information.
there are some extremely important parameters that no cam maker in the world likes to mention.
laws of lifting, velocity, acelertion, jerk
The most important moment is precisely when the lifter arrives near the maximum opening of the cam.
the majority of valve springs are not really optimal compared to the cam, even if they are part of a kit.
a hydraulic lifter has the advantage of being silent, and very little adjustment.
but a true racing engine must imperatively use a mechanical pusher.

guys that's only my opinion !!!!

Andrea