Found a good thread with a couple of rates for various cars.
looks like svt is around the 160 g/sec or 21 lb/hr
flow rates
What is interesting is using that stealth calculation page, means that if my temperature is 9C as opposed to my current 30C I would flow 7% more air....No wonder the car feels so different in those cool spring/autumn evenings.
What amazes me is with a simple change of the SVT intake, the vehicle can flow 20% more air. I know there are lots of figures out there but that is a serious difference with something as simple as an intake. Certainly backs up so much what spook says about velocity/intake configuration.
Would just love to get a custom plenum done, or even better, just take the top of each end of my current 2.5l intake and somehow enlarge it 30% and see what sort of difference it would make to air flow. Wish I new more on this area.