three 4" pp's enough for custom 3hp????

[dcole18 5,000+ posts]

i was just wondering if three 4" precision ports is enough port area for a TC3000 with a neo prototype motor (not sure if that makes a difference but i figured i would add it in)???

box will be around 3 cubic ft

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[mazdakid 5,000+ posts]

yes

 

[dcole18 5,000+ posts]

^^^ thank you...

any other opinions???

 

[adas Pro Seller]

is it a 12"? If so, for sure that's enough...2 should even have little port noise. But 3's always better If it's a 15, 3 4" ports will work might have a little noise though

 

[406er 10+ year member]

youll be fine,

 

[dcole18 5,000+ posts]

i can do three... but they gotta be sooo long... 35" each... //content.invisioncic.com/y282845/emoticons/furious.gif.fc81ca146dbff91fede3ed290dbc4f4c.gif

what should i do???

edit: BTW... its a 15"

 

[squeak12 10+ year member]

Make the box bigger or smaller port area.

 

[dcole18 5,000+ posts]

even when i make the box like 6 cubic feet the ports still have to be around 17" each... i dont see this working out, im prolly gonna have to do a flared slot port... //content.invisioncic.com/y282845/emoticons/crap.gif.7f4dd41e3e9b23fbd170a1ee6f65cecc.gif

 

[bumpweLL.nYc 10+ year member]

2*6"

its hard to find 6" PVC though, unless theres a Blackman Plumbing by you.

 

[mr_kebo 10+ year member]

lowes carries it and so does home depot

 

[bonesninja 5,000+ posts]

not sure what the Xmax on that sub is but just using 25mm for a single 15" tuned low 30's i came up with minimum83 sq in of port.

2*2*3.14=12.56

12.56*3=37.68 sq in of port.

 

[dB Dom 10+ year member]

Why not just make a slot port and save yourself the trouble.

 

[dcole18 5,000+ posts]

Why not just make a slot port and save yourself the trouble.

prolly just gonna do a kerfed slot port... way easier