andym85 Posted July 8, 2007 Report Share Posted July 8, 2007 well, what makes an aeroport an aeroport is the flared ends on them. the flare cause an aero to be more efficient with less turblance than a regular round or slot/square port. i have see people make their own jigs and create flares for large pvc, but that is kinda complicated. since aeros are more efficient then you can get away with less port area.....but what size/type of subs do u have? how big is the enclosure? for spl or daily driving? Quote i likes me some audio stuff... Link to comment Share on other sites More sharing options...
thegr8cody Posted July 8, 2007 Author Report Share Posted July 8, 2007 2 fi btl 18's 15-16 cubic feet daily driving Quote 1998 gmc sierra h/u:eclipse cd3200 sub:dd9518g d1.5 amp:jl e300/4 sub amp:dd m2a front stage:id ctx65cs dc power 270 alt lots of kicker 1/0 Link to comment Share on other sites More sharing options...
andym85 Posted July 8, 2007 Report Share Posted July 8, 2007 u could do four 6" aeros per sub, but i just dont see that happening. first of all, with the flanges on those 6"aeros have a 9.5" diameter...that takes up a lot of space on a box, along with volume inside. plus 6" aeros are like $50 a piece... i would just do a big slot port...if u really wanna stick with aeros then its gonna be tricky. Quote i likes me some audio stuff... Link to comment Share on other sites More sharing options...
Derrick824 Posted July 8, 2007 Report Share Posted July 8, 2007 You can get the 6" aeros from www.thrilleraudio.com for $39 each. For a pair of BTL 18s you should only need four 6" aeros for the pair, but I'm not exactly sure. Someone at Fi could give you a much better answer there. I recommend asking them and please let us know their response. I'm curious to this also. Quote Link to comment Share on other sites More sharing options...
dcofer Posted July 9, 2007 Report Share Posted July 9, 2007 well evertyhing they said was fine, but that info does not help you find the surface area of the port. to find the surface area you use 2 x PI x r x length that will give you the surface area inside the aero port Quote Link to comment Share on other sites More sharing options...
Derrick824 Posted July 9, 2007 Report Share Posted July 9, 2007 Circumference x Length = inside surface area but I don't recall him asking for that. Quote Link to comment Share on other sites More sharing options...
emperorjj1 Posted July 9, 2007 Report Share Posted July 9, 2007 lol thats what i was tripping on... dont you only calculate the inside surface area on areos anyway? Quote J. JMy CardomainFINISHED COBALT SS/SC DUAL ALTERNATOR PICS theres no such thing as too expensive when it comes to upgrades like that, because imo if you are gonna spend to upgrade then do it correctly rather then be a cheap ass ricer Link to comment Share on other sites More sharing options...
thegr8cody Posted July 9, 2007 Author Report Share Posted July 9, 2007 thats what im looking for area of port right now i have a vent port and i was thinking of doing a fiberglass box with aeros and im tryin to figure this out everybody is saying something different Quote 1998 gmc sierra h/u:eclipse cd3200 sub:dd9518g d1.5 amp:jl e300/4 sub amp:dd m2a front stage:id ctx65cs dc power 270 alt lots of kicker 1/0 Link to comment Share on other sites More sharing options...
emperorjj1 Posted July 9, 2007 Report Share Posted July 9, 2007 ya i need to figure it out too... someone posted a good link in the other areo port thread i think Quote J. JMy CardomainFINISHED COBALT SS/SC DUAL ALTERNATOR PICS theres no such thing as too expensive when it comes to upgrades like that, because imo if you are gonna spend to upgrade then do it correctly rather then be a cheap ass ricer Link to comment Share on other sites More sharing options...
andym85 Posted July 9, 2007 Report Share Posted July 9, 2007 well evertyhing they said was fine, but that info does not help you find the surface area of the port. to find the surface area you use 2 x PI x r x length that will give you the surface area inside the aero port the surface area really doesnt matter when figuring tuning or displacement. to find your tuning, you need the area of the port (pi*r^2) and for displacement u need volume (pi*r^2*h). the surface area is the actual physical surface of a port which kinda sounds like displacement, but its not. what u need to find displacement is the actual air space that the port takes up inside the box, which would be whatever amount of air is inside the port tube, meaning the volume. you should probably take into account the thickness of the aero tubing to be precise, but the arent very thick, so that is probably trivial. thats my take on things. Quote i likes me some audio stuff... Link to comment Share on other sites More sharing options...
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