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View Full Version : Please help calculate volume of this enclosure



Slo_Ride
02-27-2009, 07:53 PM
http://img99.imageshack.us/img99/2562/1508box.th.jpg (http://img99.imageshack.us/my.php?image=1508box.jpg)

Width is 17". Can anyone tell me the volume of this enclosure please. These are outer dimensions and the box will be made with 3/4" MDF. I keep trying to break it into two different triangles but I'm just not sure I'm doing it right. So far I've come up with somewhere between 1.2cuft and 1.5 cuft. Thanks for the help!
:confused::crap::confused:

goodguy8705
02-27-2009, 07:57 PM
Not enough information for an exact calculation.

Slo_Ride
02-27-2009, 07:58 PM
okay, what else do you need. I appreciate the help.

goodguy8705
02-27-2009, 08:07 PM
http://img413.imageshack.us/img413/8313/1508box.png

Can you fill in any of question marks? Only need one.

IDSkoT
02-27-2009, 08:13 PM
What he said.

goodguy8705
02-27-2009, 08:14 PM
You can figure them all out knowing only one.

Ninja edit.

Slo_Ride
02-27-2009, 08:17 PM
Ok, give me a minute to go outside and measure.

Slo_Ride
02-27-2009, 08:20 PM
http://img413.imageshack.us/img413/8313/1508box.png

Can you fill in any of question marks? Only need one.

the top question mark on the left is 8"

goodguy8705
02-27-2009, 08:26 PM
That doesn't work with your previous numbers.

If that's the case, I need to know all three because I can't use whats known to calculate the rest.

Slo_Ride
02-27-2009, 08:27 PM
the top question mark on the right equals 2". my origianl post should say 10" on top not 8". Very soory I've been trying to figure this out all after noon.

Slo_Ride
02-27-2009, 08:32 PM
once you come up with the asnwer can you please explain it to me in case I have to adjust any of the sizes. the box is going behind the seat of an MR2 so thats why the funny shape. I have to make the most of what little room I have.

goodguy8705
02-27-2009, 08:41 PM
Okay, I'll calculate it right now.

Slo_Ride
02-27-2009, 08:47 PM
the top question mark on the right equals 2". my origianl post should say 10" on top not 8". Very soory I've been trying to figure this out all after noon.

**** at my horrible spelling, I'm telling you this box is about to drive me crazy! :crazy:

goodguy8705
02-27-2009, 08:49 PM
I get 1.61235 cu ft before driver displacement.

Slo_Ride
02-27-2009, 08:54 PM
ok can you please tell me how you got that? That way i dont have to ask everytime. Thanks a lot for the help. also i'll be using rouund ports, waht size length and how many should I use to get 38hz tuning for a DD 1508.

goodguy8705
02-27-2009, 08:56 PM
I honestly wouldn't bother porting this box. In a car that small, a sealed enclosure with the right sub would work best in my opinion.

I broke it down just like I did on the picture. Two triangles and a rectangle. The only tricky part is figuring out whether or not you count the thickness of the wood or not and even that isn't all that tricky.