So I'm looking at doing 2 NS's in a 78 C3 Corvette on an NS-1 @ 0.5ohm. Electrical will be solid (2x 350amp alts, 1x D3400, 2-3x XP3000 or D3100) so I would expect decent clean power. Highs/mids amp will be a Sundown 200.4.
Will be a daily driver with external ports so i can change tuning at will, maybe 26-32hz daily and around resonant frequency for SPL. Due to the sever space restrictions I was thinking 2 6-8" aero's, probably 6's to keep them short. Preference is more toward low end hair trick monster, hitting numbers is secondary. Subs inverted, double baffle. Don't want to go less than 2 15's, no walls, no slots/squares. 7cuft net is about the max I have to work with due to the shape and access of a Vette. Ports will bolt on after the box is in the car.
So with those details, what net volume should I go for? The Sundown recommended 3cuft each or lower/higher? If someone could model them in Winisd with smaller/bigger volumes and smaller/bigger ports, it would be greatly appreciated.
Option: 2 18's sealed better than 2 15's ported?