Closed Thread
Results 1 to 8 of 8

Reload Thread: Slot ports that exit the same distance from the rear as they are wide???? HELP

  1. #1
    mendon mafia's Avatar
    mendon mafia is offline 2 12's 6+kW Chrysler300M



    Join Date
    Jan 2008
    Location
    Tricities WA
    Age
    29
    Posts
    2,043
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Slot ports that exit the same distance from the rear as they are wide???? HELP

    Ok so im using the re calculator to get some baseline designs for my next projects and im wondering what is the deal when you make the port bend 2 length 0" in length?

    it says on the re site that you are still acting as bent using the .75" of the thickness of the wood as the port bend 2 piece.

    basically i want to know if I am the same distance from the back of the box as is equal to the port width do i get to count the bend in the port length or is it just the length of the port wall? will it still function like a bent port? should i put a 45 or a curve in the corner as like a bent port?

    How much farther from the back of the box do i need to be for it to act as a straight port and not need a 45 or curve?

    Ive designed a box like this for me friend before and it turned out great but i think it was lucky on the tuning, i cant remember how i calculated it.



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: 1998 Chrysler intrepid 2.7l, JVC deck 24bit burrbrown, 5V preouts,
    15" loaded FI BTL UFO style D2, Orion 5000.1d running at 4ohm
    Polk mm6 front components powered by Rockford amp. Stock rears off hu power. Big 3 and 1 extra Wal-Mart battery in the trunk.

    Side projects: Numbers matching 94 caprice ls (soon to be turbo) modest 2 10 setup on a few hundred watts. numbers matching 79 z28 with desmoged motor, possibly doing IB setup




  2. #2
    psych0ticnemes1's Avatar
    psych0ticnemes1 is offline Psych0tic Customs



    Join Date
    Apr 2005
    Location
    Behind You
    Posts
    5,842
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    175 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    The port actually extends past the port piece like this:



    Port piece length + port width + width of wood = Total port length (22.75")



    References:

    Ali1, michaellane, cadillac114, chasinSKURT, DaRevrin, rhuff80, sam yung, The215, tukn18s, Xenophontos,nuboot,jfitz97,LuckyDerDer 2x

  3. #3
    on1wheel01's Avatar
    on1wheel01 is offline Bang A Lang



    Join Date
    Aug 2008
    Location
    Mooresville nc
    Posts
    2,738
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    psych0ticnemes1 to the rescue again lol good info



    REFS
    bought from nismos14,lask48180,wu501,teamsolo,thegreatestpenn, 1phatclipse,lorilee8284,Louisiana_CRX,woofercooker ,97maxima,Bad4Health
    sold to sotogrip,bobby32,rgplayer,mxer657,deathpenalty18,C ahm Rohn
    traded with grimreper912003,5cr4ppy
    1999 Durango 2 Memphis Mojo 15's Audiopipe ap3k
    4 Date Safe 75 ah batts Alpine hu. Lots of wangin

  4. #4
    psych0ticnemes1's Avatar
    psych0ticnemes1 is offline Psych0tic Customs



    Join Date
    Apr 2005
    Location
    Behind You
    Posts
    5,842
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    175 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    I do what I can.



    References:

    Ali1, michaellane, cadillac114, chasinSKURT, DaRevrin, rhuff80, sam yung, The215, tukn18s, Xenophontos,nuboot,jfitz97,LuckyDerDer 2x

  5. #5
    mendon mafia's Avatar
    mendon mafia is offline 2 12's 6+kW Chrysler300M

    Threadstarter


    Join Date
    Jan 2008
    Location
    Tricities WA
    Age
    29
    Posts
    2,043
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    Thanks.

    so how far from the back do i need to make it to be considered a straight port?

    also when making it like shown above would it be beneficial to add a 45 or curved section?



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: 1998 Chrysler intrepid 2.7l, JVC deck 24bit burrbrown, 5V preouts,
    15" loaded FI BTL UFO style D2, Orion 5000.1d running at 4ohm
    Polk mm6 front components powered by Rockford amp. Stock rears off hu power. Big 3 and 1 extra Wal-Mart battery in the trunk.

    Side projects: Numbers matching 94 caprice ls (soon to be turbo) modest 2 10 setup on a few hundred watts. numbers matching 79 z28 with desmoged motor, possibly doing IB setup

  6. #6
    RAM_Designs's Avatar
    RAM_Designs is offline SketchUp Master



    Join Date
    Feb 2006
    Location
    Rockwall, TX
    Age
    32
    Posts
    21,086
    Post Thanks / Like
    Images
    1
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    457 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    Quote Originally Posted by mendon mafia View Post
    also when making it like shown above would it be beneficial to add a 45 or curved section?
    Either or will help air flow rather than having just a 90* corner.



    2,500+ designs since March 2011

  7. #7
    mendon mafia's Avatar
    mendon mafia is offline 2 12's 6+kW Chrysler300M

    Threadstarter


    Join Date
    Jan 2008
    Location
    Tricities WA
    Age
    29
    Posts
    2,043
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    2 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    Quote Originally Posted by RyanM923 View Post
    Either or will help air flow rather than having just a 90* corner.
    ok so now for the how far away do i need to be before it becomes a straight port, surely 6.5 inch for a 6" wide port wont be enough, how much is?



    refs: ebaker, its_bacon12, jando86, thedukey42 , WrenchGuy, jaredspl, teenapp, MisterGrubbs, BushJ311, fozzy2134
    System: 1998 Chrysler intrepid 2.7l, JVC deck 24bit burrbrown, 5V preouts,
    15" loaded FI BTL UFO style D2, Orion 5000.1d running at 4ohm
    Polk mm6 front components powered by Rockford amp. Stock rears off hu power. Big 3 and 1 extra Wal-Mart battery in the trunk.

    Side projects: Numbers matching 94 caprice ls (soon to be turbo) modest 2 10 setup on a few hundred watts. numbers matching 79 z28 with desmoged motor, possibly doing IB setup

  8. #8
    RAM_Designs's Avatar
    RAM_Designs is offline SketchUp Master



    Join Date
    Feb 2006
    Location
    Rockwall, TX
    Age
    32
    Posts
    21,086
    Post Thanks / Like
    Images
    1
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quoted
    457 Post(s)

    Re: Slot ports that exit the same distance from the rear as they are wide???? HELP

    Quote Originally Posted by mendon mafia View Post
    ok so now for the how far away do i need to be before it becomes a straight port, surely 6.5 inch for a 6" wide port wont be enough, how much is?
    I couldn't tell you how much further it has to be, or what % more than the width of the port it has to be...I just tend to either keep it a safe distance from the corner, or use the corner.



    2,500+ designs since March 2011

Closed Thread

User Tag List

Posting Permissions

  • You may not post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
1e2 Forum