true variable valve timing
Eliminate camshaft belts chains pushrods lifters and all components related to valvetrain operation
true variable valve timing
Looking for input
standard internal combustion engine
I still haven't seen a specific question. Just statements. What kind of input are you looking for? You want pages of detailed explanations of various types of systems? Or do you have a question about a specific system? Or are you just wanting someone to write your homework assignment for you?