right it leaves the exhaust valve open for a split second during the intake stroke serving the same purpose as an egr system

 

I think the newer ones are at either 5600 or 5800 too.

 

my bad, I should have said that.

 

The VVT in the ecotec does not affect valve lift or duration -- these stay the same. What the VVT does do is change the camshaft relationship with the crankshaft. Think of it as an automatic sprocket adjuster -- the cams move back or forward to advance or retard up to 60 degrees at the sprocket. In technical terms it changes the intake and exhaust camshafts' lobe separation.

 

yeah see thats the one problem with this website, right here. there is nothing wrong with sharing knowledge, but if your an arrogant pompus ***** while you do so, then your gonna **** people off in the process. that guy clearly mentioned that he didnt know much about VVT. i know lots of **** too, about a lot of things, but i dont need be a sorry ******* or treat people like they are stupid just because they dont have knowledge about this or that. i hop this site can clean up this behavior, even at the risk of 86ing someone knowledge.