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View Full Version : is this right ?



dbman150
06-25-2008, 03:23 PM
4 cub bo x tuning would be 40 2 4 in round ports cut to 8.8 in seems a little small

what do u think

dbman150
06-25-2008, 03:25 PM
o and sub is a 15 aq hdc3

djman37
06-25-2008, 03:26 PM
www.psp-inc.com port calc sez 8.66 each

edit: on that sub, i'd use 3 ports.

dbman150
06-25-2008, 03:29 PM
will it make that big of a diff

djman37
06-25-2008, 06:19 PM
It would be better, but don't know if it would be feasible in your box. check out what happens to port length with 3 :(

dbman150
06-25-2008, 08:31 PM
yea i see that thats why i asked i can do it but its going to be a pain in my truck being that they are going to be external