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  #1  
Old 07-29-2009, 02:44 PM
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Default SLOW blowthrough build 4 18"Fi Bls

What do yall think about this?? will be going in my single cab 95 dodge ram
got the design from iamamp3pimp great guy

here are the particulars....

bottom 77 x 49
bottom 77 x 49
top 77 x 49
top 77 x 49
baffle 74 x 46
baffle 74 x 46
front 46 x 5
front 46 x 5
side 77 x 16
side 77 x 16
side 77 x 16
side 77 x 16


Port internal sides (4) 3 x 9.5

port external top 44.5 x 3
port external bottom 44.5 x 6
port external sides (2) 3 x 9.5

we are looking at 10 sealed and 17.75 ported


get dowels for bracing...

46x10 for the cutout to cab

10-11 feet of wood dowels for bracing...

i mean the dowels are 12 inches apart

fiberglass resin first then cover in bedliner... also resin the corners and dowels on the inside

so it'd be easiest to build the port outside the car
then slide it in
then screw it in from the sides

3/4 MDF sheets

its 5T x 19W >>>> PLEXIGLASS WINDOW

now make sure the inner lip is .5 bigger so you can flush mount the plexi on the inside.

like in the pics.






















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1995 Dodge Ram 1500 Reg. 5.2l V8
Will have a blowthrough setup pretty soon.
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Last edited by nismos14; 07-29-2009 at 02:56 PM.
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  #2  
Old 07-29-2009, 02:47 PM
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What if I don't want to send to phone.

Looks like a nice install.
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My Car, My Ears.

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if it was anyone besides nizzy i would agree. but he gave you the benefit of the doubt and only gave you a 5 pter when it should be considered a perma ban. nizzy isnt a nazi mod, hes one of the laid back ones. although i do not support all of the staffs decisions this is one staff that i do support 100%. just let it go and move on. it will expire
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  #3  
Old 07-29-2009, 02:53 PM
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lol i guess that "send to phone is from photobucket" it wont let me erase sooo...

thanks man
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  #4  
Old 07-29-2009, 02:53 PM
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Should be great. Cant wait to see the build log. Great sketchup too
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  #5  
Old 07-29-2009, 11:16 PM
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got these replies on some other forums...

not feeling it..

the sealed chamber will act much smaller than it is because its so short and long.... which will make the spaces farther away a lower pressure zone. With a box that short you don't want the woofers firing vertical.

do 6 15's firing horizontal

Ive got a pretty good idea about 4th orders, but Im no expert.

I just know that the design the OP has wouldnt work.
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  #6  
Old 07-29-2009, 11:40 PM
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It will work but not as a 4th order.


For it to be a 4th order, the port needs to be less than half the surface area of the panel which it is mounted in or the entire chamber acts as the port. (as in this case)

This is not bad but you need to count on it as a sealed enclosure not a 4th order.
Absolutely do not port the upper chamber since it will render your enclosure useless.

If the subs are firing downward it will "Load into the vehicle" well but I don't think it will set any SPL records.

I will look into a few things and see what I come up with since you seem to have provided all the dimensions.
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Old 07-30-2009, 12:52 PM
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Quote:
Originally Posted by iamsonic View Post
It will work but not as a 4th order.


For it to be a 4th order, the port needs to be less than half the surface area of the panel which it is mounted in or the entire chamber acts as the port. (as in this case)

This is not bad but you need to count on it as a sealed enclosure not a 4th order.
Absolutely do not port the upper chamber since it will render your enclosure useless.

If the subs are firing downward it will "Load into the vehicle" well but I don't think it will set any SPL records.

I will look into a few things and see what I come up with since you seem to have provided all the dimensions.
ok thanks man

here are the max dimensions on my bed

7. Max dimensions:
here are the dimensions 49 1/2" wheel weld to wheel weld
77" front to back of bed
19" height
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  #8  
Old 08-09-2009, 02:56 AM
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looks like mine for 4 18's.

Except its a 6th order
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Old 08-09-2009, 06:42 AM
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Looks like a nice design.
I wanna see it when it's all done.
Any deadner going into this?
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Old 08-09-2009, 06:43 PM
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the cab and the floor of the bed will be dead...
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