Securing sub enclosure

[teK--]

What have people been doing to secure a sub enclosure in their boot? I have previously built false floors out of MDF but this time I'm keeping everything fairly low key and want to retain the factory boot liner carpet.

Not looking to do occy straps or velcro or anything bush mechanic .

The hollow metal beam which runs east west directly behind the back seat looks good but appears to be pretty thin metal, otherwise I was thinking of making right angle brackets which can screw into this beam using sheetmetal screws?

[wassell2381]

I know you dont recon its a good idea but i just have velcro on the botton of the sub that basically grips with the carpet itself. Along with the weight of the sub and the velcro mine is rock solid although it still allows me to move it quickly if needed.

cheers
Dan

[Sentinel]

I know you dont recon its a good idea but i just have velcro on the botton of the sub that basically grips with the carpet itself. Along with the weight of the sub and the velcro mine is rock solid although it still allows me to move it quickly if needed.

cheers
Dan

And, you don't damage your car by drilling into it.

I have used a black rubber band strung b/w the rear seat lock in points. Oh, I've got the blind always shut...

[nytrojen]

What have people been doing to secure a sub enclosure in their boot? I have previously built false floors out of MDF but this time I'm keeping everything fairly low key and want to retain the factory boot liner carpet.

Not looking to do occy straps or velcro or anything bush mechanic .

The hollow metal beam which runs east west directly behind the back seat looks good but appears to be pretty thin metal, otherwise I was thinking of making right angle brackets which can screw into this beam using sheetmetal screws?

I've got a 2mm plate bent at 90 degrees and just secured it to high hollow metal beam you're talking about. It's about 2mm thick steel, and holds the sub VERY securely. Doesn't move at all. Have a look at my install pics on the forum to see what I mean. That sub box isn't there anymore, but I'm too lazy to put up pics of the new install unless you really want to see what I've got.

P.S: It's secured with standard metal screws - not self tapping though

[teK--]

Nytro are you saying the beam is 2mm or your bracket, or both?

Also, since there is no thread to screw into (since you drilled holes into the beam), how did you use regular screws instead of self tapping sheet metal?

EDIT: I just checked the car and I see what you must have done... you must have held nuts up through the holes which are in the bottom of the beam, and tightened up screws through the drilled holes. How may times did you drop a nut and waste lots of time trying to retrieve it

[jdm rsk]

i use a hockey strap and secure it around my rear strut brace, couldnt be bothered taking a new pic but you can just see what i am on about

[tangcla]

Velcro by far the easiest and cleanest option.

Remember you're not trying to stop the whole weight of the sub box - you only need to increase the initial friction to prevent it from beginning to move.

[teK--]

Velcro by far the easiest and cleanest option.

Remember you're not trying to stop the whole weight of the sub box - you only need to increase the initial friction to prevent it from beginning to move.

Yeah I am, velcro may be sufficient for normal driving but in the event of an emergency stop or collision a velcroed box just becomes a projectile! Even if the box shifts half a foot backwards quickly that could potentially wreck the amp terminals when the cables pull on it. I'll go the right angle brackers into the H-beam it looks good I'll use those screws which have a spring loaded catch at the back that you insert through a drilled hole.

[drndrn]

Why don't you use a combination of velcro and some sort of strap? Instead of screwing/bolting it on. It keeps things simple to move/remove.

I agree in an emergency situation the sub may fly if it isn't secured probably. I've literally covered the bottom of the sub with velcro. So I've had no such issues.

[teK--]

I'll have a closer look when I test fit the box Drndrn, perhaps I'll have some new ideas and I'll let you guys now. At the moment was just sus'ing out whether the Liberty boots have any handy tricks that you guys have already found

[teK--]

I've done a test fit and shiiiiit it is a tight fit; with the factory boot liner in, the box *just* fits under the beam with an encouraging shove. If the box was 1mm higher it would not fit in, so friction alone will keep the box there most of the time but I'll install similar brackets to yours anyway to be sure.

My only problem now is, that the box is about 2inch too deep, i.e. where the crease is in the bootliner to lift up the back half for the spare tyre, has about 2inch of the box crossing over it.

Without the bootliner in, I can just get the spare tyre out with the box in the car. My question now is this. Has anyone tried creating a new crease in the factory bootliner so it can fold in a new location? The material label on the back shows that the central layer of the liner (inbetween the top and bottom layer of carpet) is "PP" which I presume is polypropylene.

Failing this I will just have to make a new bootliner with some 3mm MDF and carpet.

[CappZ]

Mine just sits in there. I didnt want the velcro. I have a rubber car floot mat under it, and it doesn't move..unless your flying around corners

[Sentinel]

You have a sedan yes? Then the projectile you're talking about is not an issue really. And, the only time it will move is in the event of a rear end shove that hit's you 'very hard' - in this instance, it will move toward the boot opening. In heavy braking, it will only lean towards the seats and parcel shelf, thus being held.

Regardless, looks like you've decided anyway so good luck with it.

As for the carpet - maybe heat it up with a hair dryer and create a new crease??

[jdm rsk]

Velcro by far the easiest and cleanest option.

Remember you're not trying to stop the whole weight of the sub box - you only need to increase the initial friction to prevent it from beginning to move.

used velcro it moved and damage the material on the spare wheel cover

[CappZ]

Velcro by far the easiest and cleanest option.

Remember you're not trying to stop the whole weight of the sub box - you only need to increase the initial friction to prevent it from beginning to move.

used velcro it moved and damage the material on the spare wheel cover

That's the reason why I didn't use velcro. I thought it would have ruined the carpet material..so a rubber mat works well =].