Yeah, thanks for that hospital pass Mike
The truth is that I think I agree with most of what you are saying (jargon aside), the engine is basically nothing more than a pump and as such more air or colder air or denser air should equate to more power. However dyno experience gives the lie to this and the truth is that everyone has their pet theories but nobody really knows the definitive answer - you will only get that from Nissan.
This was a hot topic a few years ago on my350Z and crops up from time to time there and you always get plenty of wild-assed theories - a lot of heat and not much light. I would suggest that if you are interested in the definitive answer, you try there.
I wouldn't post up on the FI section though because what most people come to realise very quickly for this car (it look me about 6 weeks ) is that spending £1000 in the almost vain search for a lasting 10BHp NA is futile compared to spending £3000 to get a guaranteed 130BHp from a FI solution - so in fact the answer becomes almost irrelevant from a cost/benefit point of view
the only tefal I could think of