Quote:
Originally Posted by wdfifteen
It’s not overlap per se, it’s the cam holding the intake valve open when the piston starts to move up in the cylinder. The cam timing and length of the intake track are tuned to provide max power/torque at specific rpms. At certain rpm this produces positive pressure in the i tack track at other rpm.
|
This sounds like camshaft lift duration.
My understanding is that lobe separation angle (LSA) is the issue.
https://jiminglese.com/common-questions