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^ Is there a difference in combustion quality between charge that is swirling and charge that is tumbling? You mentioned AVLS is used to generate swirl, and it's by one intake valve having lift 'precedence' (for lack of a better word) and acting more like an older 2 valve head, with the intake port kind of aimed at a tangent to the cylinder wall, correct?
So is there a benefit to going back to swirl, since tumble kind of took over with 4 valve heads, and there didn't seem like a good way to produce swirl in a 4v head until variable lift (profile changing or otherwise) became more common?
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Because titanium. |