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Reload Thread: 700 horsepower mustang gets 21" Death Penalty Sub

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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    Hey I race my corvette, and it has a setup in it. Only a Diamond Audio D3 8" though and a MM1500.1 Im doing a 8.11 in the 1/8th :P







  2. #32
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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    Also it is removable for racing so it would only be an effect on the street.




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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    When we run our hard tire class, we are limited to a 300 treadwear, regular radial tire. (not a drag radial) I have added as much as 250 lbs ballast to the back of the car, and the more weight I added, the faster I could ramp in the boost, and the lower the ET got. I estimate that this build will add about 350 lbs to the rear of the vehicle, so we will see what that does for ET.

    I'm still doing some smoothing to the instide of the box, and the port exits. We will be installing the box and wiring it on Wednesday. I feel that the SPL gods will smile on this build

    We still have a lot more smoothing to do, but hopefully we should have the lid on and the box mounted today.

    Here's the mockup of the sub. It barely clears the spare tire well by 1/2 and inch, and the rear of the surround clears the back of the hatch by about 2". Once I install the amps and batteries on either side of the box, there should be hardly any air space except for the "wedge" of airspace above the hatch.








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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    progress so far has been a little slow, had to wrap up the bathroom remodel in my house, AND we broke and axle over the weekend, so know I have to deal with that. The next vids should be of the windshield flexing....

    Basically we just have to swap out the alternator, finish covering the box with vinyl, and we will be ready to rock. We opted to go with two D1400 XS power 14 volt batteries instead of just one, they look more symmetrical and fit in perfect little pockets on either side of the box.










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  5. #35
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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    ^ lol at the first pic. Looks great man. Can't wait to try those d1400's on the D9's. Any testing or play time yet ?




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    Re: 700 horsepower mustang gets 21" Death Penalty Sub





  7. #37
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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    is that a single baffle?



    Refs: Bought from: Doola36 (CA), lilbone44 (CA), TheEnforcer98 (CA), avs20 (CA), mobeious (CA), plugitin (CA), SWFL (CA), Mattd0344 (CACO), Bumpin Kota (CA), flaboy22 (FLSPL), skaraudio (CACO)
    Sold to: Orcus332 (CSF), Highs On Bass (CSF), wklose99 (CA), 1ndatrunk (CACO), upzaudio (CACO), lightnin1213 (CACO), GAMEOVERCCA (CACO), xx-wade-xx (CACO)
    Traded with: Kangaroux


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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    Yeah, kind of ***** on the car matt. Lots of bad luck

    but dam hear that turbo from a mile away. Next time I'm up there I need to give you a couple days notice so you can take the mustand and we can go for a joy ride .



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    Quote Originally Posted by Loudman View Post
    And so were the judges!!!:lol: Sorry man, that was so insensitive of me!! I've been there before!!

  9. #39
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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    cant wait to see numbers



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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    I heard there was massive windsheild flex off single amp



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    Quote Originally Posted by mayo_bryan View Post
    i saw david's work , impressed !!!!
    Quote Originally Posted by Loudman View Post
    And so were the judges!!!:lol: Sorry man, that was so insensitive of me!! I've been there before!!

  11. #41
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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    We did a quick amp test with just one amp, on one coil, just to verify that the amps would run at 17 volts after we modded the board. We didn't even have the sub screwed down, and the windshield was flexing, LOL. I expect good things.

    The box has two baffle boards that make up twin 8"x8" square ports firing into the seats. All the corners inside the box and ports have been rounded and smoothed, and 2" pipe was used to make rounded inner flanges for the ports that double as box reinforcement to support the sub.



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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    Quote Originally Posted by MECHMAN View Post
    We did a quick amp test with just one amp, on one coil, just to verify that the amps would run at 17 volts after we modded the board. We didn't even have the sub screwed down, and the windshield was flexing, LOL. I expect good things.

    The box has two baffle boards that make up twin 8"x8" square ports firing into the seats. All the corners inside the box and ports have been rounded and smoothed, and 2" pipe was used to make rounded inner flanges for the ports that double as box reinforcement to support the sub.
    not really the baffle.. was talking about where the sub sits. is that only one piece of wood? is there any other bracing inside the box



    Refs: Bought from: Doola36 (CA), lilbone44 (CA), TheEnforcer98 (CA), avs20 (CA), mobeious (CA), plugitin (CA), SWFL (CA), Mattd0344 (CACO), Bumpin Kota (CA), flaboy22 (FLSPL), skaraudio (CACO)
    Sold to: Orcus332 (CSF), Highs On Bass (CSF), wklose99 (CA), 1ndatrunk (CACO), upzaudio (CACO), lightnin1213 (CACO), GAMEOVERCCA (CACO), xx-wade-xx (CACO)
    Traded with: Kangaroux


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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    Quote Originally Posted by MECHMAN View Post
    2" pipe was used to make rounded inner flanges for the ports that double as box reinforcement to support the sub.
    Also, that is marine birch ply, much more rigid than MDF. There is only about a 6" span of unsupported board all the way around the sub, so it is PLENTY strong. We used birch so that we wouldn't have to make the box so heavy with multiple layers of MDF.



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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    looks nice man good job always wanted to do a build with one of these monsters



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    Re: 700 horsepower mustang gets 21" Death Penalty Sub

    I'm going to try and get the new alt in tonight, might have time for some vids if it isn't too late. Between the exhaust and the system, my neighbors hate me



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