speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 i would place the ports furtherest away from the sub, if they're too close you'll have unloading issues Ive been told everything, put them closest to the sub on the same side where the sub will be or put them on the opposite side from the sub. But since the sub is facing the driver, do I put the port on top of the box (facing trunk top) or on the side (facing quarter panel) or facing towards the driver? I tried to buy some flared ports, they were 14$ a piece on amazon plus $5 shipping partsexpress.com is 10 bucks a piece plus free shipping Quote Link to comment Share on other sites More sharing options...
speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 i have a 4 inch that i can sell you it hasn't been used at all, it just sits in my room i can sell you 10 bucks flat straight up Quote Link to comment Share on other sites More sharing options...
trjohnst Posted May 8, 2011 Author Report Share Posted May 8, 2011 I already built my own as seen in the pictures. I just need to know where to put them and on what part of the box to put them. Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 (edited) have them facing the same way with the subs and to be honest with you, the ends you have on your ports are not technically flared... you're still gonna end up with some port noise Edited May 8, 2011 by speedball1978 Quote Link to comment Share on other sites More sharing options...
trjohnst Posted May 8, 2011 Author Report Share Posted May 8, 2011 have them facing the same way with the subs Since my sub is either gunna be on the far right or left. Which side should they be on? Close to the sub or on the opposite side? How many inches from the sub if I put the ports on the same side? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 ok guess i'll explain one last time have them facing the same with the sub, but furtherest away from the sub.. hopefully you can understand it this time around because i already mentioned to you once already if you're too close to the ports, you're gonna have unloading issues Quote Link to comment Share on other sites More sharing options...
trjohnst Posted May 8, 2011 Author Report Share Posted May 8, 2011 ok guess i'll explain one last time have them facing the same with the sub, but furtherest away from the sub.. hopefully you can understand it this time around because i already mentioned to you once already if you're too close to the ports, you're gonna have unloading issues Ok, sounds good. I just wanted to make sure before I do this since I have heard several different answers to my question. My ports are a tad bit shorter than 9.5 inches long and that is from where the port extrudes the wood inside the box. Since it is 4.77 cubic feet in volume, this should tune me around 34hz. Would it make a difference if I put a flange on both ports on the inside of the box? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 flanges won't change the sound, it will probably change your tune...just use the flange on one end to mount to the box but here's a little secret, flare up the opposite ends using a torch or heat gun.. using a metal bowl and wala you'll have aero ports lol Quote Link to comment Share on other sites More sharing options...
speedball1978 Posted May 8, 2011 Report Share Posted May 8, 2011 you said you have 2 4 inch pvc's right?? Quote Link to comment Share on other sites More sharing options...
trjohnst Posted May 8, 2011 Author Report Share Posted May 8, 2011 flanges won't change the sound, it will probably change your tune...just use the flange on one end to mount to the box but here's a little secret, flare up the opposite ends using a torch or heat gun.. using a metal bowl and wala you'll have aero ports lol I might be able to do that, maybe boil the pipe and try shoving a bowl or something inside of it to flare it out. Does 2 4inch diameter ports at about 9.5inches sound sufficient for a good box at 4.77 ft^3? Quote 1991 Accord Audioque HDC3 15" (Copper)<--Sub Audioque HDC3 15" (Copper)<--Backup Sub Crescendo BC2000D<--Amp Big 3 1/0 Knu<--Wiring Eonon 3.5" DVD<--Headunit Infinity Kappa Perfect<--Mids & Highs 2nd Stock 80Amp alt. 1991 Mustang 5.0 Too many mods (Sold) 1991 240sx SR20 Red Top Too many mods (Sold) 2004 GTO Just starting mods Link to comment Share on other sites More sharing options...
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