4th order Hcca12 woes

[mobilehomeguy]

I built a 4th order box for a H CCA 12 for a friend.its more of a show off piece,sounds decent.but now he wants to put it in a lil contest and its not competitive.the sealed side is 2.4cubic ft and the ported side is 4.6.  2:1 is what I wanted,I think my port is wrong.port is 31.25 x 3 x 6.5.box is 9h,32w,18.5d sealed.17h,33.5w,20d ported.i will try to post a pic.if anyone could help me to resize it or if someone could tell me exactly what this box is tuned to,I would be much appreciative

[DiBo]

Your sealed side is way off. You need more like 1.25-1.5 Max then about 2.5-3.25 ported

[mobilehomeguy]

Thanks for the info