Whats the displacement in cubic feet for the l7 15 inch sub

Ford was always the most conservative of the major automakers, holding onto older designs far longer than GM or Chrysler. But market forces pushed Ford to develop new designs in the 1950s. The company had designed the Y-block for a 1953 introduction, but a shortage of nickel due to Korean war needs prevented the company from manufacturing the engine in sufficient quantities.
Ford introduced the first of the Y-block engines in 1954 on Ford cars and trucks. The engine displaced 239 cubic inches and made 139 horsepower and 193 pound-feet of torque. This represented a 25% improvement over the standard flathead from the previous year. Ford customers were enthusiastic about the new engine. Mercury customers received an uprated 256 cubic inch Y-block rated at 161 horsepower and 238 pound-feet of torque.
For 1955, Ford increased the displacement and made engines at both 272 and 292 cubic inches. The 272 made 162 horsepower and 258 pound-feet of torque. All basic Ford products received this engine. The 292 engine gave Thunderbird and Mercury drivers 193 horsepower and 280 pound-feet. With this engine, the 1955 Thunderbird rocketed from zero to sixty in just 9.4 seconds.

How it Works

Stone and Mulch Calculators

As an example, let's use 500 square feet to be mulched at a
3" depth.

1. First, the depth must be converted to feet. To convert inches to feet, simply divide inches by 12, the number of inches in a foot.
   
   So for our example: 3 inches divided by 12 equals a 0.25 foot depth.
2. Now that we have the depth in feet, we can multiply the depth by the area.
   
   So for our example: 0.25 foot depth times 500 square feet equals 125 cubic feet.
3. If you are calculating 0.5, 2, or 3, cubic foot bags, simply divide 125 cubic feet by the size of the bag.
   
   So for our example: if we are using 2 cubic foot bags, we can divide 125 cubic feet by 2 which equals 62.5 bags.
4. If you are calculating cubic yards, we need to convert 125 cubic feet to cubic yards by dividing by 27. One cubic yard is equal to 27 cubic feet, see the diagram below.
   
   
   
   So for our example: 125 cubic feet divided by 27 equals 4.63 cubic yards.

For Your Information

• 1 inch equals 0.08333 feet
• 1.5 inches equals 0.125 feet
• 2 inc

Multiply 21 inches by 14 inches by 10 inches to get 2940 cubic inches. There are 12 inches in a foot, so there are 12^3=1728 cubic inches in a cubic foot. Divide 2940 cubic inches by 1728 cubic inches per cubic foot to get about 1.7 cubic feet.

Alternatively, first convert all measurements to feet. 21 inches is 1 3/4 feet, 14 inches is 1 1/6 feet, 10 inches is 5/6 feet. Multiply them together to get 245/144 cubic feet, which again is about 1.7 cubic feet.

It's always nice when doing a problem two different ways gives the same answer.

Sub displacement? 1.79

If you visit, www.audiobahn.com i'm sure you can find some specs on their site. Otherwise it's 1 - 1.5 cubic feet per sub.

1 cubit [Roman] is 17.4803149606 inches

If you are referring to cubic feet to inches then you need cannot when cubic feet is a volume measurement and inches is a length measurement.

the box is 5.75 cubic feet

basically its length x width x depth in feet

It depends on the size of the subs- 8z 10z 12z 15z? whether or not you port the box is up to you- a ported box is generally louder than a sealed box -as you are coupling and tuning the sound from the rear of the driver with the sound generated from the front of the sub- but the box is also generally larger as well.Then aside from your preference of ported/sealed you have to account for the recommendations of the manufacturer as to whether the sub/speakers are meant to be placed in a ported or sealed enclosure. Most 10 inch subs do well in a box that yields .75 cubic feet to1.0 cubic feet.most 12z do well in 1.0 cu feet to 1.5 subic feet and 15z do well in 1.5 to 2.5 cubic feet. I have a set of 15z that require 4.25 cubic feet per sub-so its important to look into the manufacturers recommendations. The easiest box to make would be a sealed enclosure-and the sound quality generally yields a tighter more accurate bass sound along with increased power handling capability- try going to rockford fosgate .com and look into the woofer box wizard its a program that calculates air space for whatever size box you have room for-hope that helps you-good luck

If you can access the inside of the sub box by removing the speaker, you may be able to measure the 3 dimension of each side of the enclosure.  1 cubic foot is 12x12x12 inches cubed.  That is 1728 cubic inches per cubic foot.  If you measure the inside dimensions of one of the enclosure sides as 10x14x8 inches, then that is 1120.  1120 divided by 1728 is 0.648 cubic feet.  Alternatively, you could estimate the volumes of each side of the box by measure the outside, figuring out where the box divider board is, subtracting the width of the boards used to make and then calculate.  Otherwise, I do not know the enclosure that that sub comes in.  Good luck.  Let us know how it goes.