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I have a truck box that is .95 cubic ft. Ive heard 1lb polyfill per cubic ft is what most recommend. Does anyone know about what percentage it adds. Ive heard from 15-30%?

1998 gmc sierra

h/u:eclipse cd3200

sub:dd9518g d1.5

amp:jl e300/4

sub amp:dd m2a

front stage:id ctx65cs

dc power 270 alt

lots of kicker 1/0

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Well i was wondering if there was a way to calculate. Ive read that 1.5lb/per cubic ft in a 3 cubic ft yields 30% increase

1998 gmc sierra

h/u:eclipse cd3200

sub:dd9518g d1.5

amp:jl e300/4

sub amp:dd m2a

front stage:id ctx65cs

dc power 270 alt

lots of kicker 1/0

Link to comment
Share on other sites

Well i was wondering if there was a way to calculate. Ive read that 1.5lb/per cubic ft in a 3 cubic ft yields 30% increase

I've heard 1 lb/cu ft. Only way to know for sure is trial and error.

2015 Toyota Tacoma Build Thread

2007 Mazda 3; 5000K HID's, Kenwood Excelon KDC-X997, Infinity Reference 6.5 comps in front and coaxials in the rear doors, JL 320.4 four channel, Rab Designs built ported enclosure with an SA12, Kenwood monoblock, Redline Leater shift boot/e-brake boot/center console cover, JBR short shifter/shifter bushings/rear motor mount.

Build Thread

 

1996 Mazda Miata: Kenwood Excelon HU, Alpine speaker in the doors, Clearwater (miata specific) headrest speakers. 

 

1994 Mazda Protege: Kenwood Excelon HU, Infinity Reference 2 ways all around, 2x RF Punch 10's in ported boxes. 

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