firing sub into cabin. Makes a difference?

[FunBoyThomper 10+ year member]

im planning on building a ported box for a 8 inch sup firing into my cabin through a ski pass in the backseat. My plan is to have the port the same side as the sub a couple of inches undearneath but still into the cabin. Would this be a good idea? Or should i fire it to the back of the trunk?

Click to read more...

 

[bobonit]

If you are going to have them firing into the cab, you will want to seal off the trunk from the cab.

 

[kberkel 10+ year member]

If you are going to have them firing into the cab, you will want to seal off the trunk from the cab.

Word if the cabin isn't sealed from the trunk you'd get more output just facing the sub towards the back

 

[bhsdriller 10+ year member]

You'll just have to try it and see which is louder. For some people it's better, for some it's not

 

[infamous_e46 5,000+ posts]

So u drive an e46 ?

 

[FunBoyThomper 10+ year member]

lexus is300

 

[Lakota 5,000+ posts]

It doesn't have to be sealed off, but sealing off does tend to gain SPL.

 

[KyleBechtold 5,000+ posts]

If you face it forward and have any trunk vibrations that is lost spl.. If you don't want to seal it then face it back

 

[IDSkoT 5,000+ posts]

So u drive an e46 ?

LOL@U

The e46 isn't the only car with a ski hole.

Besides, IS300 > ur e46...

That's a lie.

 

[Lakota 5,000+ posts]

If you face it forward and have any trunk vibrations that is lost spl.. If you don't want to seal it then face it back

But what if forward firing and no sealing is louder than firing back? What if firing forward reduces pressure in the trunk to stop trunk flex/rattles? What if the car actually likes to flex?

 

[FunBoyThomper 10+ year member]

ill post up pics of my ski hole and other guys with is300 with the same set up so you guys can get an idea of what im trying to do

 

[j1b1e1 10+ year member]

I'm looking for input here too, I've got 2 JL 13w7's sitting in limbo...

 

[Notloud00 10+ year member]

But what if forward firing and no sealing is louder than firing back? What if firing forward reduces pressure in the trunk to stop trunk flex/rattles? What if the car actually likes to flex?

ive done lots of setups in trunks and firing forward w/o sealing it off has sucked in every one. ive only "almost sealed" off one and it sounds really nice but needs much more port and needs to be tuned higher.

 

[slim2fattycake 10+ year member]

I am in the same bind here except I wont have the backseats folded down. I am thinking about sealing off right behind the sub with the subs facing forward towards the cabin and the port to the passenger side. Would this have better output then just facing subs back?

 

[NJTStang11 10+ year member]

lexus is300

Lexuses are VERY difficult to get loud.

Have the sub firing toward the back of the trunk and ported through the ski pass.

Just my opinion.