HELP! part 2

[Bggd_GMC 10+ year member]

welll did more research and if my math is all correct i have 1.75cf after sub and port displacement...BUT i dont know lol look over it and see if im right??? the12volt said i need 26.8in of port but rounded it off to 27....

box is 15h, 15d, 24.5w INSIDE 13.5d, 13.5h, 23w.....tuned to 30hz

box=4191.75

port=911.25

sub=.14

4191.75 - 911.25 = 3280.5 / 1728 = 1.89 - .14 = "1.75"

am i right? =D

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[mylows10 5,000+ posts]

2.5215 x15 x24.5 =5512.5 - 911.25 = 4601.25 //17282=2.6627 - .14= 2.5227 cubic ft

 

[Bggd_GMC 10+ year member]

what did i do wrong>?

 

[mylows10 5,000+ posts]

not sure but thats what i came up with 4 times

 

[Bggd_GMC 10+ year member]

not sure but thats what i came up with 4 times

ahhhh ok.... the outside box is 15x15x24.5....i was doing 13.5x23x13.5

 

[mylows10 5,000+ posts]

even with those measurements ,still 1.99 cubic feet

 

[Bggd_GMC 10+ year member]

hmmmmmmmmmmmm

 

[mylows10 5,000+ posts]

go to the re box calculator and put in the measurements then minus displacement.it's easier that way.but you are close

 

[Bggd_GMC 10+ year member]

biggggggo headache

 

[mylows10 5,000+ posts]

yea i know but you should be ok still with your measurements , re says your port is only 1.5 " wide for 30 hertz.i know their calculator is off a little [the tuning ],but should still be close.

 

[Bggd_GMC 10+ year member]

i dont think i did my port displacement correctly

 

[mylows10 5,000+ posts]

what is the port size

 

[Bggd_GMC 10+ year member]

1.75 wide

 

[mylows10 5,000+ posts]

how long

 

[mylows10 5,000+ posts]

31" long at 1.75 for that freq