Closed Thread
Results 1 to 13 of 13

Reload Thread: Aero ports, what size and how many?

  1. #1
    bbbblaah's Avatar
    bbbblaah is offline Junior Member



    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Aero ports, what size and how many?

    Hey all,
    I am currently using a slot port and want to change to aero ports. My box is roughly 5.25 cu without port displacement and I would like to tune around 32-34 hz. I am running 2 type r 12s.

    So what size and how many ports should I use? I was thinking at least 2 and maybe 5"

    Suggestions?







  2. #2
    Lakota's Avatar
    Lakota is offline Doesn't Know $hit



    Join Date
    Feb 2005
    Location
    Louisville, KY
    Age
    26
    Posts
    6,222
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Type of car? Depending on the shape of the box 3 4" ports will work well without having an insanely long port length. 4 4" or 2 6" would be optimal, but can often be hard to fit.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

  3. #3
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    It's in an extended cab truck. Wedge style box port firing up. Box is 20" tall outside. So if I go with 2 6" then I would probably have to bend it correct? Or is there a better option?




  4. #4
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Any other input, I like 2 6" aeros the best for port area purposes, but I do not know how to fit them in because they need to be around 24" long or something close to that. Should I buy some 90 degree bends and fit the rest in by bending it and having it go at the bottom of the box?




  5. #5
    Lakota's Avatar
    Lakota is offline Doesn't Know $hit



    Join Date
    Feb 2005
    Location
    Louisville, KY
    Age
    26
    Posts
    6,222
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    3 4" ports should work just fine. Do subs forward port up.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

  6. #6
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Cool thats how it is right now, I will def. do 3 4" I was just worried that it would not be enough port area. But I will do that, esp. since I was at the store and saw how much 90deg. bends cost. Is there a minimum space between the end of the port and the box wall that I need to maintain?




  7. #7
    mazdakid's Avatar
    mazdakid is offline CarAudio.com Veteran



    Join Date
    Oct 2004
    Location
    illnoise
    Age
    30
    Posts
    10,385
    Post Thanks / Like
    Mentioned
    42 Post(s)

    Re: Aero ports, what size and how many?

    Keep it the ports width away from the back wall.



    traded-pickup1, power-fanatic07, fbi90909
    sold to-superspank, dumple, JoeRa22, sub-FATHER, TrlcKed_OuT, rosrock, dcole18, RaiN, BassAddictJ, tommyk90, MANTI5, Micah_Jones, mrflamboynt, g6ryder, rebelfromva, n8skow

  8. #8
    Lakota's Avatar
    Lakota is offline Doesn't Know $hit



    Join Date
    Feb 2005
    Location
    Louisville, KY
    Age
    26
    Posts
    6,222
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    I'd keep the gap over 4". People use the ports diameter as a rule of thumb, but I have found that 6 in ports can actually get pretty close to an object and not choke.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

  9. #9
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Thanks, so psp-inc gives me a straight length req of 17.32" for 3 4" aeros. If my box is only 20" tall, will this gap be too small. If so, what should I do?




  10. #10
    thedukey42's Avatar
    thedukey42 is offline CarAudio.com Elite



    Join Date
    Apr 2007
    Location
    Cleveland, Ohio
    Posts
    857
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Box will be 4.75ft^3 @ 34Hz with 3 4" areo ports after port and sub displace (with areo ports at stock length, 17"). PSP recommends you keep atleast half the port width distance from the rear wall, so you should be just fine. It is best to keep it port distance from the back of the enclosure but it will work. Next time I suggest you design you box before you build it.



    I can build boxes in the ohio area, pm if interested.

    Feedback - http://www.caraudio.com/forum/showthread.php?t=292473

  11. #11
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Ok so I ordered the psp 4" flared ports. Is the 17" that is required the length from the ends of each flare, or the length of the tube before the flares? I am assuming to the end of each flare.




  12. #12
    Lakota's Avatar
    Lakota is offline Doesn't Know $hit



    Join Date
    Feb 2005
    Location
    Louisville, KY
    Age
    26
    Posts
    6,222
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Flare to flare.




    Ben Hemp
    1992 GMC Sonoma Ext Cab NEW BUILD
    2008 MECA S1 KY State Champion, 151.0 dB
    2008 MECA S1 WorldChampion, 151.8 dB
    2010 MECA scores: 150.9 dB S2, 151.6 dB S3
    Refs: smd4life, Subst4nce, wccoug21, dacheatham, thegreatestpenn, jshak07

  13. #13
    bbbblaah's Avatar
    bbbblaah is offline Junior Member

    Threadstarter


    Join Date
    May 2009
    Location
    Charlotte, NC
    Posts
    27
    Post Thanks / Like
    Mentioned
    0 Post(s)

    Re: Aero ports, what size and how many?

    Cool, so from the box the whole assy. measures 18" from the end of each flare or the total length. So I should just cut off 1" from the straight tube correct?




Closed Thread

Posting Permissions

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