2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what hz??

• 10-06-2010
TrlcKed_OuT
2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what hz??
hey guys not sure how to calculate flared ports on aeros so i need a quick check...like i said box is 2.35 cubic ft with one 4'' aero port with both ends flared and its total lenght with flares is 18''...what would this box be tuned to and how much port displacement?
• 10-06-2010
basscort2009
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
roughly 27 htz....
• 10-06-2010
TrlcKed_OuT
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
ok i got 26.xx without the flares just didnt know how to calc with them...what about port displacment?
• 10-06-2010
RAM_Designs
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
Right around .15ft^3.
• 10-07-2010
TrlcKed_OuT
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
mind telling me how to figure that?
• 10-07-2010
RAM_Designs
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
Quote:

Originally Posted by TrlcKed_OuT
mind telling me how to figure that?

radius^2 x pi x length(I use the full port length to make up for the flares that I'm not accounting for, instead of taking 3/4" off for the baffle), then divide by 1728.

(2.125^2 x 3.14 x 18)/1728 = .148ft^3
• 10-07-2010
TrlcKed_OuT
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
ok cool thank you
• 10-07-2010
SpeedEuphoria
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
yeah for displacement you need the outside diameter divide by 2 to get the outside radius
• 10-07-2010
CHEMMINS
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
Once you figure out port displacement, don't forget to recheck net volume. It will change the port freq.
• 10-07-2010
SpeedEuphoria
Re: 2.35ft^3 box with 1 4'' aero port total lengh 18'' with flares on both ends,what
right smaller box = higher tuning keeping port the same