THATpurpleKUSH 5,000+ posts
Fuckyou
I just read through everyones responses, mazdakid and I have the right ideas about the port. Theres not enough clearance at the hatch and the shape of the port being a thin mail slot is whats doing it, I would bet $ on it. I would have done port to the rear with an 8in round port.
With 3.5 cu/ft and a tune of 34hz you would need a length of about 27.62 with an 8inch port. You could put a V right behind it to direct the airflow and that way you could choke down the clearance at the mouth and not suffer. I used a 6in port and left 4 1/4inches of clearance for my box. I think you should do a variation of what I did here:
my box is 36w 14h 22d
With 3.5 cu/ft and a tune of 34hz you would need a length of about 27.62 with an 8inch port. You could put a V right behind it to direct the airflow and that way you could choke down the clearance at the mouth and not suffer. I used a 6in port and left 4 1/4inches of clearance for my box. I think you should do a variation of what I did here:
my box is 36w 14h 22d