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  #1  
Old 06-04-2011, 10:47 AM
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Default Port location in Hummer

I'm getting reading to start a build in my Hummer H2 and am not sure where to face my port. I going to be running 4 Fi BTL 18 N2 Dual 1's fully loaded powered by 4 DDM3 amps @ .5 ohm each with four 250 amp alts, 5 runs of 1/0, and four Stinger SPP1500d batteries. It's going to be a daily driver, but want to do some spl comps as well. I want to keep everything in the cargo area (no wall), which gives me about 29 cu. ft. total. I plan to build an interchangeable port so I can run one tuned at 32 (for daily) or the other around 45 to 50 (for spl). I have two options for port placement, up or back. Is there any noticeable advantages to either and what kind of numbers should I expect to see?
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Old 06-04-2011, 11:21 AM
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Most suv guys see more back.... I am.a.trunk guy tho

Numbers wise... I would expect to see a minium high 140's... depending on tuning and peak
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Old 06-04-2011, 11:42 AM
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Man I didn't think H2's had that much space. What are your base measurements? Just curious.
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Old 06-04-2011, 11:56 AM
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subs up, port back
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Old 06-04-2011, 12:13 PM
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Quote:
Originally Posted by AQsrt4 View Post
Man I didn't think H2's had that much space. What are your base measurements? Just curious.

they dont have that much space.... I assure you of that..
I speak first hand because I'm in the process of building one myself.
difference is I'm doing a third row wall with 4 15s.

unless the amps and batts are housed under the rear seat of the second row which is not possible I can see there being that many cubes
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Old 06-04-2011, 05:33 PM
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I just measured and calculated again. There's 23.52 in the cargo area and 5.7 over the fender wells without trim panels. It's looking like I'll end up 18 net, after box, amps, bracing, sub displacement, and vent. I'll have to build a battery box mounted to the undercarriage.
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Old 06-04-2011, 05:49 PM
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If you're not doing a wall, do subs up port back. If you need help with the design I can help.
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Old 06-04-2011, 06:04 PM
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Quote:
Originally Posted by shadstrong View Post
I just measured and calculated again. There's 23.52 in the cargo area and 5.7 over the fender wells without trim panels. It's looking like I'll end up 18 net, after box, amps, bracing, sub displacement, and vent. I'll have to build a battery box mounted to the undercarriage.
When i get home tonight i can pm you the measurement figures i have from the build on my end.

As for myself i kept all the panels in including fender ones and anything else behind the second row. Wanted to keep the tearing apart of the interior to a minimum...lol...

Everything including the amps and dozen batts will be inside the vehicle....
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Old 06-04-2011, 06:07 PM
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Originally Posted by jt_buck View Post
If you're not doing a wall, do subs up port back. If you need help with the design I can help.
I think I've got the design figured out. I'm looking at starting with three different vents and working from there until I find my Hummer's peak rf. One at 51 hz, 27 w X 12.375 h X 1.5 d which will give me 20.89 net cubes. Another at 45 hz, 24.375 w X 10.375 h X 3 d giving me 20.45 cubes and one more at 32 hz, 24.375 w X 10.375 h X 18.75 d giving me 18.25 cubes.
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Old 06-04-2011, 06:09 PM
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Are you going strictly spl?
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