Aero port help

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.

 
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)

 
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......................

 
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