best space saving places are using the spare wheel well, using the sides of the boot with a fiberglass mold, you can also use the passenger footwell areas

I'm gonna use the spare wheel well. Is there any tips you know about making a decent enclosure in one? I'd rather not make a whole false floor, and also theres a bracket in there do I just chop it off?

i choped mine off to fit batteries in it

just line it with fiberglass and build it up so it's thick enough not too crack then mdf over the top and should be sorted www.talkaudio.co.uk will have better info on it

I'm mounting mine in the spare wheel well, just carry a can of tyre weld around with me! After losing a few Kg's from getting rid of the spare I didn't want to put all the weight back on in MDF so instead used a piece of hardboard that I have cut to shape(will get pics soon). Hardboard is shit because it's so thin and flexi but I have got round that by basically just pasting a load of fibreglass onto the bottom to add strength and at the moment it will hold anything you but on top of it in the boot. When I mount the sub it will be a b*stard to say the least to cut the hole out now I've glassed the hardboard but I've got plenty of glass so if I just crack it all when I cut the hole out I'll just sure it all up again with more glass! Got to love the fumes! Anyway i reckon if I dynomat the spare wheel well and most of the boot floor aswell as mounting the sub on gel mounts(commonly used for computer fans to keep them from being excessively noisey!) and maybe dynomating the underneath of the hardboard should provide a solid acoustic base for the sub to pound away on with the whole of the boots worth of air to vibrate. I know it's not the best design, idea, use of space or most economical but it will do the job for me.

Simon

Sounds good zombie. I'm not too worried about weight as my car was 700kg from factory So I'll do what you are doing except with mdf. How have you got it it to sit flush have you cut a piece to cover the entire boot floor and then propped it up on stilts so it won't wobble?

Dynamat is a good plan and gel mounts (I prefer these little pads from Focus cheap as chips). I'm using flashing tape for sound proofing tho, £13 for 10m x 25cm roll :)

Also do you know the approx volume of the wheel well (assume its mk2/mk3?) as I need about 21 litres for my sub?

Just thought I'd bump this back up to see if anyone has had any more thoughts...

From everything I've read and looked at, best bets are sides of boot and spare wheel well. Everything has its pros and cons really... As for tailgate I think its a lot of work for less gain. I've always wondered if a sub in the dash would be possible with a lot of stripping out and plastic trimming!! Edit: And loads of fiberglass/expanding foam/silicone sealant/insanity?

Edited 18 June, 200719 yr by Narrow_Lane

This makes for worrying reading. You need to make a sub box for the wheelwell. Maybe like the top half of a whiskey barrel,though I've got a better idea. I was round a mates a few days ago,and his doorbell didnt work. So i knocked on the door with my finger joints. You might wanna do this on your spare wheel well. It is a drum. Dynamat is good,but it doesnt work absolute miracles. You could use the wheel well as a mold to make a fibreglass box that'll fit perfect - but be removable. That would be far less likely to drum the floor. Lining the well with masking tape before laying in the fibreglass should enable it to be removed with persuasion if the box is strong enough. It'd still be light,even if 10mm thick. Lay a sheet of perspex or something over the floor,bonded with some silicone sealant and a 12in hole,to mat the box together into one piece. Then pull away the perspex sheet to reveal the box.

This makes for worrying reading. You need to make a sub box for the wheelwell. Maybe like the top half of a whiskey barrel,though I've got a better idea. I was round a mates a few days ago,and his doorbell didnt work. So i knocked on the door with my finger joints. You might wanna do this on your spare wheel well. It is a drum. Dynamat is good,but it doesnt work absolute miracles. You could use the wheel well as a mold to make a fibreglass box that'll fit perfect - but be removable. That would be far less likely to drum the floor. Lining the well with masking tape before laying in the fibreglass should enable it to be removed with persuasion if the box is strong enough. It'd still be light,even if 10mm thick. Lay a sheet of perspex or something over the floor,bonded with some silicone sealant and a 12in hole,to mat the box together into one piece. Then pull away the perspex sheet to reveal the box.

That's pretty much what I had planned to do. Apart from the perspex bit, not quite sure I follow you there. I found a guide on Talk Audio which showed me exactly what I needed to do..

Sub in the dash.. hmm could be interesting. Although i wouldn't be too sure if having bass at the front would sound good? (not exactly an expert) But that would definatly be a huge saver on space

The perspex,or similar,is just a tool to make the top part of the mold. Otherwise you're making it in two parts? Anyway,the dash. Yeah,there's not much room in there,but boxes dont have to be square or large,an 8in sub in a taylor made box would fit in the dash,though quite how good it'd sound I've no idea. They've been placed under seats aswell,though i couldnt get a pair of headphones under mine. Or in the dash,come to think of it..

Seen a 6 or 8 mounted in the dash before. Wasn't on so couldn't say how kack it was.

The bootlid idea makes interesting reading. I've got two 8's but i think they maybe way too big, even with baffles on the front! Love to see what comes of the idea though.

I've got two 6" subs mounted in an MDF parcel shelf and they sound awesome! the shelf is properly cut to pretty much seal the boot and the whole boot enclosure acts as a box! I'll probably get a few pros telling me how wrong this is but honestly have a sit in my car and it sounds great! Its not too boomey either - just a good deep solid rumble.

I'm gonna have a play around with my boot enclosure, a big sub and box are heavy and i want to keep my car light! Diffrent subs work diffrently in relation to enclosed and air flowing, you could maybe mount the subs facing inwards if you haven't got the depth, or if you have the back seats out mount components in their they would go quite well.

I've literally just played around with a 10" sub and found it fits perfectly into the little enclosure on the side of the boot so i reckon two 10s, one in each side, wld be pretty phat (sick!) but i dunno how it would sound without a proper box, youd have to just cut a sheet of mdf to go down the side of the boot