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plywood or MDF?

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Old Mar 11, 2004 | 04:14 PM
  #1  
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From: newfoundland Canada
plywood or MDF?

whats better for a sub box? pine plywood, or MDF?
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Old Mar 11, 2004 | 04:23 PM
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
mdf
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Old Mar 11, 2004 | 04:54 PM
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From: Western Maryland
Car: 82z28
Engine: 406
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definately mdf
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Old Mar 11, 2004 | 05:29 PM
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From: Halifax, Nova Scotia Canada
Car: 1986 Camaro SC
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use mdf, plywood would flex
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Old Mar 11, 2004 | 05:36 PM
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From: abbotsford, bc
Car: 83 z28
Engine: 300hp 355
Transmission: T5
Originally posted by 1986CamaroSC
use mdf, plywood would flex
MDF is what i would go with...or oak...or concrete
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Old Mar 11, 2004 | 06:09 PM
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From: Topeka
Oak is to porus which would be very bad. If you go with any non MDF wood use cabinet grade 7-9 layer plywood. Most people say birch but as long as it is a high grade which also means expensive you sould be ok. it is best to go with MDF as the density of the wood is consistant and the price is way better. Low grade plywoods have knots and hollow spaces in the lamenits and this could produce bad harmonics and vibration.
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Old Mar 11, 2004 | 06:37 PM
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okay thanks, i am building a box for a friend, and wanted to know would mdf be good(cheap), so thanks.
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Old Mar 11, 2004 | 06:42 PM
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From: Mililani, HI USofA Search Posts: 2848.............. Whore Posts: 47.................. Magical Whore Posts: 1
Car: 91 Camaro 77K
Engine: 3.1 Vslick
I think plywood would do a really good job
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Old Mar 11, 2004 | 09:43 PM
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From: abbotsford, bc
Car: 83 z28
Engine: 300hp 355
Transmission: T5
Originally posted by 9177
Oak is to porus which would be very bad. If you go with any non MDF wood use cabinet grade 7-9 layer plywood. Most people say birch but as long as it is a high grade which also means expensive you sould be ok. it is best to go with MDF as the density of the wood is consistant and the price is way better. Low grade plywoods have knots and hollow spaces in the lamenits and this could produce bad harmonics and vibration.
if the oak was treated it would be alright wouldnt it?? probably not too economical though
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Old Mar 12, 2004 | 12:39 AM
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From: michigan
your all wrong....use medium density fiberboard.

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Old Mar 12, 2004 | 01:54 AM
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From: Mililani, HI USofA Search Posts: 2848.............. Whore Posts: 47.................. Magical Whore Posts: 1
Car: 91 Camaro 77K
Engine: 3.1 Vslick
Originally posted by Kandied91z
your all wrong....use medium density fiberboard.

Right On, Brother.:yourock:
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Old Mar 12, 2004 | 07:50 AM
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From: Topeka
Anytime I've built cabinets out of oak the glue always presses out of the ends on the joints. and yes very expensive
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Old Mar 12, 2004 | 07:53 AM
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Car: Trans Am GTA
Engine: 305
Transmission: Rebuilt 700r4 with stage 3
MDF Is ooooooohhhh soooooo heavy, but definitely better then anything else out there! for the car application!
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Old Mar 12, 2004 | 09:08 AM
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From: El Paso, TX
Car: 1989 Camaro RS
Engine: V8 305
if weight was a problem you could use birch. About $50 a sheet tho
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Old Mar 12, 2004 | 06:16 PM
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MDF
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Old Mar 12, 2004 | 08:37 PM
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Car: 2001 SS Camaro
Engine: 350
Transmission: T56
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I made my box out of High Densifty Fiberboard, i think thats what my dad called it.

It was just test box though, just so we could get the hang of making a custom box but... it doesnt sound to bad.

Anyone ever make a box out of the stuff?
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Old Mar 12, 2004 | 09:15 PM
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
I've heard of it. Never used it though.
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Old Mar 12, 2004 | 10:14 PM
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
why not try fiberglass. Imo its easier. Just messier
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Old Mar 13, 2004 | 12:37 AM
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From: Mililani, HI USofA Search Posts: 2848.............. Whore Posts: 47.................. Magical Whore Posts: 1
Car: 91 Camaro 77K
Engine: 3.1 Vslick
Originally posted by br()bert
I've heard of it. Never used it though.
heard of what???
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Old Mar 13, 2004 | 10:52 AM
  #20  
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From: Philly
Car: 85 firebird
Engine: Pos 2.8 pulled and replaced with a 350 tpi motor converted to carb.
Transmission: 700r4, vette servo,shift kit, hayden 15"x8" trans cooler.
Originally posted by Kj Rockz
heard of what???
High Densifty Fiberboard
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Old Mar 15, 2004 | 03:48 AM
  #21  
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From: Mahtomedi, MN
I haven't heard of it. But it it is more dense(heavy) than MDF you can cancel those drop springs you ordered because it is gonna put the rear end down a lot.
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Old Mar 15, 2004 | 08:00 AM
  #22  
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From: Pa
Car: 2001 SS Camaro
Engine: 350
Transmission: T56
Axle/Gears: I should know this
it is heavier than MDF but, not by an insain ammount.
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Old Mar 20, 2004 | 06:21 PM
  #23  
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From: Northern Kentucky
Car: 1991 Z28
Engine: L98
Transmission: 700R4
Made my box for my Three L5's out of Birch.....MUCH MUCH lighter than MDF...BUT its hard on drill bits and saw blades...The advantage of it is it doesnt flex like cheap plywood...and its lighter(doesnt make the *** of the car squat). Disadvantage is price(unless your a manager at Lowes)
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