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  #1  
Old 06-03-2014, 02:04 AM
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Should I do it? Mild metal cutting...

I am in a little bit of a pickle. I want to install some audio gear that I already own and absolutely love....Problem is that I want a stealth install and the sub is too deep to completely fit under the rear cargo floor cover. I would have to cut out a section of the metal to get the clearance that I need. Now I know that some of you just puked and are not into that sort of thing....Dont worry, I have every tool and the skill to replace that section of the floor whenever I would want or need to. I have done welding/fab for many years.

So, the plan would be to cut just enough to allow the magnet to clear and still allow me extra space for air flow around the magnet/motor of the subwoofer. I would then make a composite part to fill in that hole. I would seal it completely with exterior grade yet removable sealant. My G8Gt had basically the same thing from the factory for the spare tire well. So after I cut the hole and seal the hole I can then make my composite fiberglass/carbon fiber enclosure to fit my sub and amps.

The cut would be made using my plasma cutter or a mini sabre saw. (mini sawsall) The sabre saw blade is at the most 1/16th of an inch. I would keep the section of the floor that I take out for the future if I decide to put it back.
If I do decide to put it back it would be welded, sealed, primered, painted and sprayed with undercoating. the cabin side would get the same treatment plus a bit of sound deadening.

This area is covered with a plastic cover under the truck and with the carpeted floor cover on the inside so no concern with it looking bad later on down the line. Honestly after replacing the section you would have a really hard time finding the cut unless you were actually looking for it.



OPTION 2-
raise the cargo cover floor with a custom piece about 3-4 inches and lose the stealth look. I really did not want to do this though.

OPTION 3-
Spend money on downgraded subs. When I say downgraded, it is not really that bad. I would be going from a JL 13w7 sub to the JL 12w6v3 subs which are great subs but I love the W7 sound sooooooo much that I would rather stick with what I have. I also dont really want to buy the new subs since I will be spending mucho on the processor that I need to get to deal with the stupid way the factory system is set up.


I really do not want to cut the floor, but if I do it would be soooo perfect! I am no stranger to cutting but I feel a little awkward about it.


This photo below shows the area that I need to cut. Basically from where the picture is cropped at the bottom up to right past the three plastic thingies. It would be no wider than the 3 plastic dohickies.
this photo is of a regular WK2 but the floor looks the same. The SRT has a cover over this area as in the second photo.




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  #2  
Old 06-03-2014, 02:59 AM
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Re: Should I do it? Mild metal cutting...

Sounds like you've got option 1 figured out. Go for it!


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Old 06-03-2014, 08:54 AM
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Re: Should I do it? Mild metal cutting...

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Originally Posted by greenwayer View Post
Sounds like you've got option 1 figured out. Go for it!


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Yeah but I am looking for more input before I do. This is an expensive beast and I want to really think about it before I do it.
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Old 06-03-2014, 10:53 PM
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Re: Should I do it? Mild metal cutting...

I guess you need to think about how long you intend to keep your car? If your keeping it for 5yrs plus i would go with option 1 and not worry about the resale in 5yrs. If you wont keep it that long i would suggest not cutting it up. If i was looking to buy your car and found the welds i'd be walking away quick smart. JMO
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  #5  
Old 06-04-2014, 12:04 AM
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Re: Should I do it? Mild metal cutting...

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Originally Posted by DCRSRT View Post
I guess you need to think about how long you intend to keep your car? If your keeping it for 5yrs plus i would go with option 1 and not worry about the resale in 5yrs. If you wont keep it that long i would suggest not cutting it up. If i was looking to buy your car and found the welds i'd be walking away quick smart. JMO
The plan is to keep it for quite a long time. That is all subject to how well the vehicle holds up and if I feel I can deal with the quirks of Jeep ownership again.

I am trying to force myself to accept the 2nd option but I still have these dreams of a completely stock looking cargo area.

I really do not want to give up my 13w7. It is and has been the absolute perfect sounding sub (to my ears) over all other subs I have owned. If I could change it, there would only be 3 changes.....
weight 52lb- switch to neo magnet to save weight
Mounting depth 10.5 inches -make it a little more shallow.
surround- rubber instead of foam rubber.
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Old 06-04-2014, 12:10 AM
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Re: Should I do it? Mild metal cutting...

It is a unibody... and the 6.4L has a bit of torque.

I'd be inclined to add cross supports from 'frame' rail to rail... You could maybe use them as the front and back of the new box.

Personally I wouldn't cut apart the structure for the sound, and I'd be very hesitant to buy a used SRT that had been hacked up.
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Old 06-04-2014, 12:34 AM
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Re: Should I do it? Mild metal cutting...

Quote:
Originally Posted by DerekH View Post
It is a unibody... and the 6.4L has a bit of torque.

I'd be inclined to add cross supports from 'frame' rail to rail... You could maybe use them as the front and back of the new box.

Personally I wouldn't cut apart the structure for the sound, and I'd be very hesitant to buy a used SRT that had been hacked up.
You know what, I did not really think about it in terms of the unibody. Also brings up the point of what happens when I tow something.

I am really leaning toward option 2 or possibly 3. Hmm???
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Old 06-04-2014, 12:39 AM
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Re: Should I do it? Mild metal cutting...

Quote:
Originally Posted by Bustanuddz View Post
You know what, I did not really think about it in terms of the unibody. Also brings up the point of what happens when I tow something.



I am really leaning toward option 2 or possibly 3. Hmm???

Honestly the cargo floor doesn't provide much structure for the unibody.


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Old 06-04-2014, 12:41 AM
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Re: Should I do it? Mild metal cutting...

Quote:
Originally Posted by DCRSRT View Post
I guess you need to think about how long you intend to keep your car? If your keeping it for 5yrs plus i would go with option 1 and not worry about the resale in 5yrs. If you wont keep it that long i would suggest not cutting it up. If i was looking to buy your car and found the welds i'd be walking away quick smart. JMO

I really find it unlikely that a buyer will remove the plastic cover on the cargo floor to look under there


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Old 06-04-2014, 01:03 AM
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Quote:
Originally Posted by greenwayer View Post

Honestly the cargo floor doesn't provide much structure for the unibody.

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Probably not. If I get th e guts i will do some reinforcing.
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Old 06-04-2014, 01:09 AM
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Quote:
Originally Posted by greenwayer View Post

I really find it unlikely that a buyer will remove the plastic cover on the cargo floor to look under there

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Absolutely correct. Besides like I said before, it will be coated in black heavy undercoating or herculiner. The interior will be covered wi th primer, paint, sound deadening and the factory carpet stuff. Then it would be under the spare tire and cover too. I am like the only doofus that I know who looks at the frames of my cars before purchasing them. I am always planning well in advance for all the stuff that I plan to do.
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Old 06-04-2014, 01:51 AM
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Re: Should I do it? Mild metal cutting...

Quote:
Originally Posted by Bustanuddz View Post
I am like the only doofus that I know who looks at the frames of my cars before purchasing them. I am always planning well in advance for all the stuff that I plan to do.

You're not alone my friend. In fact the frame of the car is perhaps what I look at most closely, because pretty much everything but the frame can be repaired or replaced. A frame who's structure has been compromised, for example in an accident, can NEVER be brought back to perfect spec. Anyways in this case I don't think you are compromising the frames structure. But an average buyer probably won't even look...


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