subs/port facing

[slvrado28z 10+ year member]

anybody had experience with subs/port facing in a grand marquis, town car, crown victoria(all the trunks r the same)...about to build a box for some ab xfl 15s?

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[Full Tilt 10+ year member]

I know a general rule is sub back/port back, but it could be different. Personally, I wish I would've done something else - my enclosure was very limited on depth due to how tall it had to be to fit the subwoofer firing back. Almost wish I would've fired it upward.

 

[slvrado28z 10+ year member]

ya but this trunk is different

 

[slvrado28z 10+ year member]

I know a general rule is sub back/port back, but it could be different. Personally, I wish I would've done something else - my enclosure was very limited on depth due to how tall it had to be to fit the subwoofer firing back. Almost wish I would've fired it upward.

in my car i have subs up port back, but this trunk is different..

 

[Full Tilt 10+ year member]

ya but this trunk is different

Wow-za. Good luck with that one.

 

[slvrado28z 10+ year member]

Wow-za. Good luck with that one.

yeaH need someone with experience with these cars lol

 

[hispls 5,000+ posts]

Those trunks are terrible. Best is 4th order ported through rear deck.

 

[slvrado28z 10+ year member]

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Those trunks are terrible. Best is 4th order ported through rear deck.

well besides that, just want a basic slot port. so sub/port back or both up or sub up/port back

 

[americannight 10+ year member]

If it were me, I'd think about building a box that fits right in that lower region of the space and firing subs and ports straight up. If there is space under there, you could also glass it in to take advantage of more of the space by removing the factory panels. Depending on how much air your subs need, that may not be necessary. The trunk is different shape but you have lots of space to work with which is cool.

 

[hispls 5,000+ posts]

//content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif
well besides that, just want a basic slot port. so sub/port back or both up or sub up/port back

I suspect you couldn't do a port back without seriously crowding the port. I'd try subs back and port to the side first.

 

[TreyE 10+ year member]

I have 2 15"s subs up port up in 97 Grand Marquis. Seems to work ok, always done subs back port back though in past.

 

[B-Sh0t 10+ year member]

I usually find a cheap prefab box and sub on CL and move it around for a few days to see what is best before I waist wood on a bad sub/port orientation.

 

[Slo_Ride 5,000+ posts]

Remove the upper cushion of the rear seat. Cut out the metal behind and replace it with the face of your box. Firing subs and port forward towards windshield sealed off from trunk.