Originally Posted by bboy
NA motors can also benefit from tuning of the AVCS following the more classic arguement that cam overlap will increase induction velocity at high RPM. The map for an NA car is just a portion of the one for a force induction car. The big difference to me will be that you can be slightly more aggressive with cam overlap under vacuum because you don't have this big blockage in the exhaust called a turbo. In an NA motor, I'd think that you could keep AVCS active all the way to redline and still have gains, where as under boost there's the blow thru potential that Phil is talking about.
Thats good info. I was thinking the difference would actually be a bit more useful with an NA application, but wasnt sure. I really hope there is more work with this in the future.