Cam Experts: Lobe Separation Angle?
The greyed out area is overlap, if you look the two main specs for overlap is intake valve opening and exhaust valve closing, the later has a huge effect on cylinder pressure.
As you can see tightening the lsa and or increasing duration will increase overlap by moving IVO and EVC points.
We generally talk in duration lsa lift etc.. But what is vaguely inferred by that is the valve events.
The greyed out area is overlap, if you look the two main specs for overlap is intake valve opening and exhaust valve closing, the later has a huge effect on cylinder pressure.
As you can see tightening the lsa and or increasing duration will increase overlap by moving IVO and EVC points.
We generally talk in duration lsa lift etc.. But what is vaguely inferred by that is the valve events.