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Plans for a Box

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Old May 3, 2013 | 09:12 PM
  #1  
Barlow8869's Avatar
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Plans for a Box

anyone have plans for a sub box for 10s that fits down in the well that they will pass on for free?
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Old May 3, 2013 | 09:41 PM
  #2  
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From: SLC, UT
Car: 1991 GTA
Engine: LB9
Transmission: T5
Re: Plans for a Box

The stickied topics at the top of this forum are your friend:
https://www.thirdgen.org/forums/car-...l-sub-box.html
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Old May 4, 2013 | 01:05 AM
  #3  
Barlow8869's Avatar
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: Plans for a Box

i may be able to work with that, but i want mine to sit lower in the well, may just go with 1 12" sub
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Old May 5, 2013 | 06:19 PM
  #4  
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From: West of Toronto
Car: 89 IROC
Engine: 305 TPI / ZZ4 cam
Transmission: Stage 2 700R4, LS1 driveshaft
Axle/Gears: Strange 3.42 w/ Auburn
Re: Plans for a Box

Originally Posted by Barlow8869
may just go with 1 12" sub
It's all you need.
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Old May 6, 2013 | 05:39 PM
  #5  
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Plans for a Box

I did this a while back, took me about a day.
Its perfect IMO. T Tops dont hit. Box CANNOT be taken out without removing the rear hatch motor cover so not easily stolen. Only other thing I would add would be a speaker grill for protection but haven't yet.
Sub is a P2D410 Fosgate. Box is on the low side of the recommended volume but it still sounds great.



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Old May 9, 2013 | 09:37 PM
  #6  
Barlow8869's Avatar
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: Plans for a Box

Originally Posted by Keoman
I did this a while back, took me about a day.
Its perfect IMO. T Tops dont hit. Box CANNOT be taken out without removing the rear hatch motor cover so not easily stolen. Only other thing I would add would be a speaker grill for protection but haven't yet.
Sub is a P2D410 Fosgate. Box is on the low side of the recommended volume but it still sounds great.



that is more what i am looking for, do you have the measurements of the box? thank you
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Old May 11, 2013 | 10:03 AM
  #7  
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From: Salt Lake
Car: 1989 IROC & ROLL-Z
Engine: L98 Vortec FIRST TPI
Transmission: T56, Mech Speedo
Axle/Gears: G92 J65 3.27
Re: Plans for a Box

Recommended sealed volume by Fosgate for this sub is 0.50 to 0.85
Recommended vented volume is 1.4 with Port Diameter and Length at 4" x 14"
These dimensions put the box at 1.43 cu. ft. using 1/2" MDF
I planned on making this a vented enclosure but placing the port tube in the box before I finished it, The sub would come VERY close if not in contact with the tube. So I decided to leave it be. Still sounds good to the untrained ear.

The dimensions below are outside dimensions. Make sure you are AT or under the dimensions I have shown, anything bigger and you're not going to be able to get the box into the well of you car.



and here's the beauty of interior paneling. Hiding all the messy stuff!


Last edited by Keoman; May 11, 2013 at 10:24 AM.
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Old May 11, 2013 | 03:10 PM
  #8  
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From: Mattoon Il.
Car: 1989 IROC-Z / T-Top -1987 GTA
Engine: 305 (LO3) _350 (L98)
Transmission: 700R4 _ 700R4
Axle/Gears: 2.73 L.S. - ???
Re: Plans for a Box

thank you, that will work just fine, think ill make a different top plate, to make it fit snug in the well, if i can get one mocked up that i like
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