Port length ?

[LosIsATool 5,000+ posts]

I'm trying to draw up a center port box now. My port is 5 inches wide, the length for what I'm looking for is 41 inches so it has a bend. The box is 25 inches deep so before the bend it will be 21.75 inches, that leaves 19.25 inches.. I know the port along the rear wall is 2.5 inches. Do I divide the 19.25 in half or does it need that going to both chambers?

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[double 07 10+ year member]

Both have to be that length and after they split they need to be 1/2 of the big port's width....Oh and measure down the center of port to determine length....

 

[LosIsATool 5,000+ posts]

Both have to be that length and after they split they need to be 1/2 of the big port's width....Oh and measure down the center of port to determine length....

Ok.. Just to make sure I get it right.. Port is 5 wide, 2.5 wide going to each chamber along the back wall. That 2.5 is 19.25 going into left and 19.25 going right with at least 2.5 away from the end to the side wall

 

[double 07 10+ year member]

Yes...