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    mcbuggin's Avatar
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    box calc help

    looking for the best online calc for areo ports if you have some links it would be great thanks.







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    Re: box calc help

    Quote Originally Posted by mcbuggin View Post
    looking for the best online calc for areo ports if you have some links it would be great thanks.
    If all your looking for a calc that will give you the length of the port based on volume, port size and port tuning, here ya go:

    http://www.psp-inc.com/psp-inc.com/c...calculator.cgi




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    Re: box calc help

    hey thanks so if i have this right then if I build a box 33X16X36 that'll give me 9cf internal and subtract .5cf for sub dissplacment then 5 4" flared ports at 10.5" long with the flares should bring me down to 7.75cf net roughly

    also mr. cabnetry are you a disabled vet I have about 7 claims with the VA now just waiting for a MRB




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    Re: box calc help

    Quote Originally Posted by mcbuggin View Post
    hey thanks so if i have this right then if I build a box 33X16X36 that'll give me 9cf internal and subtract .5cf for sub dissplacment then 5 4" flared ports at 10.5" long with the flares should bring me down to 7.75cf net roughly

    also mr. cabnetry are you a disabled vet I have about 7 claims with the VA now just waiting for a MRB
    If your volume is 9cf, subtract sub displ, calculate the ports, subtract that from the volume, that leaves you the net volume, if your under the net given the dimensions of the enclosure, just re adjust the dims of the box to get back to what you want for net volume.

    NO, My pop was a DAV from Korean War and I have donating to the DAV ever since I can remember. I was in the service 78 - 81 US Army Signal Corp.




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    Re: box calc help

    go cable dogs 31L is one of my mos's




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    Re: box calc help

    Quote Originally Posted by mcbuggin View Post
    go cable dogs 31L is one of my mos's
    31J10 - Teletype Repair

    We had cable apes in shop where we repaired and setup the commo rigs.




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    Re: box calc help

    Quote Originally Posted by Mr Cabinetry View Post
    31J10 - Teletype Repair

    We had cable apes in shop where we repaired and setup the commo rigs.
    I think that they actually combined the 2 mos's into one now not shure




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    Re: box calc help

    Quote Originally Posted by mcbuggin View Post
    I think that they actually combined the 2 mos's into one now not shure
    With the advent of computers, I don't think there would be a need for 31J's.




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    Re: box calc help

    been acouple of years so it could have been phased out. back to the original post though with my calculations the I get 8.2cf net for 2 AQ HDC3 15's but can't decide on sub and port placement in a 88 civic HB any ideas for the most SPL




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    Re: box calc help

    Quote Originally Posted by mcbuggin View Post
    been acouple of years so it could have been phased out. back to the original post though with my calculations the I get 8.2cf net for 2 AQ HDC3 15's but can't decide on sub and port placement in a 88 civic HB any ideas for the most SPL
    Well, for HB's I believe what most setups are as follows: Sub forward, port up

    But, it really all depends what direction the subs and ports are to yield the best response given the vehicle.




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    Re: box calc help

    that's what I thought but wanted a second opinion




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