Bazooka EL1208 Manual Do Utilizador

CALCULATING ENCLOSURE VOLUME

It is difficult to give exact box dimensions that are universal for all cars 
and trucks. It is for this reason that you must be able to calculate the 
space in which you have available in order to achieve the proper air 
volume required.  It is recommended to build your enclosure from 3/4” 
thick MDF (medium density fiberboard). Make sure the enclosure is 
sealed air tight.

Calculating External Volume

1.) To calculate box volume, measure the outside Width x Height x 

Depth of the enclosure. 

Example 12” x 14” x 9” = 1512”.

2.) Next you must convert cubic inches into cubic feet. To do this, you 
must divide the cubic inch total by 1728”. 

Example 1512   1728 = .875 Cubic feet.

Calculating Internal Volume

1.) To calculate the internal (net) volume of the above box you must 

first multiply the thickness of the wood you are using by Two (2). 

Example 3/4” x 2 = 1.5”.

2.) Next subtract 1.5 from each of the outside measurements of the box.

Width

Height

Depth

12-1.5=10.5

14 -1.5 = 12.5

9 -1.5 = 7.5

3.) Multiply the new totals (H x W x D) 

Example: 10.5 x 12.5 x 7.5 = 984.375

4.) Next you must convert cubic inches into cubic feet. To do this, you 

must divide the cubic inch total by 1728” 

Example 984.375    1728 = .5696 Cubic feet.

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