Aero port help

[treylittlefield 10+ year member]

i have a box that is 2.5 cubes...what size port would i need to be tuned to 37??

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[Slo_Ride 5,000+ posts]

oops title says aero duh

 

[Slo_Ride 5,000+ posts]

how much port area do you want. (what sub?)

 

[Slo_Ride 5,000+ posts]

one 6" would need to be 18.87" long. Are you using true flared aeros or pvc?

 

[Slo_Ride 5,000+ posts]

two 4" would need to be 17.86" long

 

[Slo_Ride 5,000+ posts]

http://www.psp-inc.com/tools.html

that will help you

 

[treylittlefield 10+ year member]

what would be better?? i mean idk the difference really sorry..lol

 

[Slo_Ride 5,000+ posts]

what sub? different subs like different port area.

 

[Slo_Ride 5,000+ posts]

what would be better?? i mean idk the difference really sorry..lol

do you mean size ? or flared aero vs pvc or straight tubing? flared aeros are better but honestly I usually use pvc. its a lot cheaper.

 

[treylittlefield 10+ year member]

it will be 2 12" cvt's....they are sealed right now and sound good but i was wonderin if i ported that same box would it sound better??

 

[treylittlefield 10+ year member]

do you mean size ? or flared aero vs pvc or straight tubing? flared aeros are better but honestly I usually use pvc. its a lot cheaper.

yeah i mean whats the difference in 1 6in and 3 4in??

 

[SicAudio 5,000+ posts]

yes better and just use 2 4" ports made from standard pvc it is just fine.

round ports do not need the 12-16" rule and 2 4" ports is 25-26 sq " so its all good.

 

[Slo_Ride 5,000+ posts]

one 6" = 28.26 sqare inches of port area

three 4" = 37.68 square inches (and they would each need to be 27.76" long)

All lengths are for flared ports, if using non flared then subtract one inch.

 

[bonesninja 5,000+ posts]

i have a box that is 2.5 cubes...what size port would i need to be tuned to 37??

ummm....will the port be external?

If not, you do know that the volume will change right? (which means the port length will have to change also to get the desired tuning)

 

[SicAudio 5,000+ posts]

ummm....will the port be external?
If not, you do know that the volume will change right? (which means the port length will have to change also to get the desired tuning)

BINGO

and 3 4" ports is way overkill

people keep forgetting that you only need 6-10" per cube with a round port......................