Sound deadining - how much needed

[tomCTR]

So chaps how much did you use on the floor? I.e. how many rolls?

I have the rear out mine out the minute so thinking it may be worth putting some down before the rear seats and boot carpet etc go back in.

 

[Caine_1989]

Wouldn't it be easier if you bought the square silver sheets that stick down they come in so many square metres that's what I plan on using before making some aluminium panels

 

[fischer]

Mine will be taken out next month to be cleaned and I plan on buying the 10mm thick sticky back rolls to put down.

 

[Nas80]

I've completely sound deadened the car. Roof (no more rain noise like you in a dustbin), floor, boot, inside doors, rear quarters, b pillar and even the boot lid. I bought a strip of weather seal expanding foam from screwfix and stick it on the bootlid so it squeezes between the boot rubber and boot lid .

sticky pads (silent coat) I used 50 of them l, you don't need to completely cover the floor you leave gaps.

Then I used 6m2 of sticky closed cell foam 10mm over everywhere and 2m square of egg box foam stuffed behind the rear boot plastics.

Then I used 6m2 of mass loaded vinyl 2mm thick as the final layer. On the boot floor and the cabin floor.

I think I have added about 40kg in weight. And spent 250 quid or so on material.

While it may sound like a lot, the benefits far outweigh the penalty. It's actually made the car less rattly, there isn't any drone and with a hks silent power and a magnaflow mid pipe and an apexi active silencer the car was 74-76db at 79mph.

Pip made me remove the active silencer it's a bit louder inside but you can easily live with it. No worse then any modern performance sports car.

 

[Macer]

Some good info there, and handy that you added an approximate weight as that's something I've been curious of.

 

[Nas80]

Few snaps.. you get the idea.car defo feels premium