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Reload Thread: how to "seal off" the trunk?

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    ab18vfl's Avatar
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    how to "seal off" the trunk?

    Soon, I'm building a new box, I want to have it firing forward towards the cabin. Due to competition class restrictions, I cant use greatstuff foam and I cant alter any stock parts of the car. What do you guys recommend to "seal" my trunk off with? Possibly pool noodles?



    2005 Subaru Impreza 2.5rs
    Head Unit- Kenwood Excelon KDC-X695
    Front doors- Rockford Prime 6.5" components
    Rear doors- Rockford Punch 4" coax's
    Amp- DC 2.0K
    Subs- Audioque HDC3 12" D1
    Box- TBA




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    Re: how to "seal off" the trunk?

    Mdf






    REFS alot

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    Re: how to "seal off" the trunk?

    how is MDF airtight at all?



    2005 Subaru Impreza 2.5rs
    Head Unit- Kenwood Excelon KDC-X695
    Front doors- Rockford Prime 6.5" components
    Rear doors- Rockford Punch 4" coax's
    Amp- DC 2.0K
    Subs- Audioque HDC3 12" D1
    Box- TBA

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    Re: how to "seal off" the trunk?

    I recommend testing on a TL to see which way is louder. Too many idiots on here say to seal it off, but 99% of them are just repeating what other idiots have posted.

    FYI...the loudest trunk vehicles at World Finals were forward firing and NOT sealed off. Only way to tell what is louder is to try it both ways in your vehicle with your set up




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    Re: how to "seal off" the trunk?

    Quote Originally Posted by ab18vfl View Post
    how is MDF airtight at all?
    I hope you're not being serious, but I'm sure you are....




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    Re: how to "seal off" the trunk?

    Quote Originally Posted by mlstrass View Post
    I hope you're not being serious, but I'm sure you are....
    im talking about the gaps between the box and my trunk wall. im trying to figure out what to wedge between those gaps to keep the airflow and bass in my cabin



    2005 Subaru Impreza 2.5rs
    Head Unit- Kenwood Excelon KDC-X695
    Front doors- Rockford Prime 6.5" components
    Rear doors- Rockford Punch 4" coax's
    Amp- DC 2.0K
    Subs- Audioque HDC3 12" D1
    Box- TBA

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    Re: how to "seal off" the trunk?

    Quote Originally Posted by ab18vfl View Post
    how is MDF airtight at all?
    dude fiberglass resin thats how to make MDF air tight



    bought from: wccoug21 sundownz thegreatestpenn loudwhat? woofercooker jonny101abc spooney fasfocus00

    sold to: jpx18 Nateberrier Ge_off_me spm_215 2lo2flo akheathen etm34 djjdnap jfroghobo traded: SPLaudio Zeuslicious

    under construction:
    1992 Toyota Paseo(1) Pioneer DEH-P500UB head unit(2)American Bass VFL 500.1 amps(4) stinger batteries,building 2 10's in tubes

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    Re: how to "seal off" the trunk?

    okay I CANT USE GLUES, FOAMS, OR FIBERGLASS in my trunk



    2005 Subaru Impreza 2.5rs
    Head Unit- Kenwood Excelon KDC-X695
    Front doors- Rockford Prime 6.5" components
    Rear doors- Rockford Punch 4" coax's
    Amp- DC 2.0K
    Subs- Audioque HDC3 12" D1
    Box- TBA

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    Re: how to "seal off" the trunk?

    Quote Originally Posted by ab18vfl View Post
    im talking about the gaps between the box and my trunk wall. im trying to figure out what to wedge between those gaps to keep the airflow and bass in my cabin
    I know exactly what you're talking about. You need to test to see if it's louder unsealed or sealed off.

    MDF and duct tape work just fine if you find that sealing it off is louder...




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    Re: how to "seal off" the trunk?

    Quote Originally Posted by mlstrass View Post
    I know exactly what you're talking about. You need to test to see if it's louder unsealed or sealed off.

    MDF and duct tape work just fine if you find that sealing it off is louder...
    ive done a ton of testing and i cant break a 140 with the seats on.

    nobody ever mentioned duct tape, that just sounds...genius



    2005 Subaru Impreza 2.5rs
    Head Unit- Kenwood Excelon KDC-X695
    Front doors- Rockford Prime 6.5" components
    Rear doors- Rockford Punch 4" coax's
    Amp- DC 2.0K
    Subs- Audioque HDC3 12" D1
    Box- TBA

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    Re: how to "seal off" the trunk?

    Quote Originally Posted by ab18vfl View Post
    ive done a ton of testing and i cant break a 140 with the seats on.

    nobody ever mentioned duct tape, that just sounds...genius
    I did a 54.9 out of the trunk...NOT sealed off

    Duct tape = simple




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    Re: how to "seal off" the trunk?

    How about using some vinyl? Mass loaded? or use something like acoustic wood with some rubber seals around the edges and wedge them in there. The cuts would have to be really good though.




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    Re: how to "seal off" the trunk?

    Quote Originally Posted by ab18vfl View Post
    okay I CANT USE GLUES, FOAMS, OR FIBERGLASS in my trunk
    ok you cant resin the inside of your box?



    bought from: wccoug21 sundownz thegreatestpenn loudwhat? woofercooker jonny101abc spooney fasfocus00

    sold to: jpx18 Nateberrier Ge_off_me spm_215 2lo2flo akheathen etm34 djjdnap jfroghobo traded: SPLaudio Zeuslicious

    under construction:
    1992 Toyota Paseo(1) Pioneer DEH-P500UB head unit(2)American Bass VFL 500.1 amps(4) stinger batteries,building 2 10's in tubes

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    Re: how to "seal off" the trunk?

    You could use a laminate faced Mdf and carpet it too. The Laminet would make the Mdf similar to grassing it. But without cheating




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    Re: how to "seal off" the trunk?

    Gorilla tape seems like your only option... or metal flasking tape is what I've used before.. 2x4's also work.



    Refs:
    sefugi x2, S.DeYoung, SteveMead, chillin, rebelfromva, Got160s?, JL Audio , mclerico83, and BIGJEFF64.



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