SLROC Forum

General Category => TECHNICAL CHAT => Topic started by: Buffalo Bill on February 24, 2018, 09:19:27 PM

Title: Sound proofing
Post by: Buffalo Bill on February 24, 2018, 09:19:27 PM

Hi guys turning a petrol into a diesel. So need sound proofing any recommendations ?.

Thanks Bill

Title: Re: Sound proofing
Post by: cooltshirt on February 25, 2018, 08:58:42 AM

Hi
on a 90 hardtop I have used a dynamat kit for the bonnet and silentcoat for the bodywork areas. Very pleased with the results. Got it all from eBay
https://www.ebay.co.uk/itm/Silent-Coat-2mm-Bulk-Pk-40-Sheets-Car-Van-Sound-Deadening-Vibration-Proofing-Mat/151155678947
https://www.ebay.co.uk/sch/sis.html?_nkw=LAND+ROVER+DEFENDER+DYNAMAT+XTREME+SOUND+DEADENING+BONNET+KIT

I looked at https://www.nkgroup.co.uk/ but decided (who knows if I was right) that it wasn't for me.

It is a worthwhile project!
Good luck

Title: Re: Sound proofing
Post by: Rambler on March 13, 2018, 04:45:41 PM

How's about a pair of ear defenders or stereo headphones?!!!

Title: Re: Sound proofing
Post by: mudTerrain on April 18, 2018, 08:51:47 AM

I've put dynamat all over the bulkhead and inside the hardtop on my 110 - it's really easy to apply and stays stuck - not sure how good it is at soundproofing yet, though...

I'd put this stuff (https://www.ebay.co.uk/itm/6x-Glass-Fibre-Car-Engine-Bay-Bonnet-Insulation-Noise-Hood-Sound-Proofing-Heat/322285663270?epid=885535041&hash=item4b09b8f426:g:eZoAAOSw-CpX91Pn) on the inside of the bonnet and the roof - it also sticks fairly well and is fairly easy to apply, although a hard roller of some sort makes it easier to do.

What diesel engine are you fitting?  My Td5 had lost its acoustic cover (https://www.ebay.co.uk/itm/Land-Rover-Defender-and-Discovery-Td5-acoustic-engine-cover/132587302594?hash=item1eded1aec2:g:rW4AAOSwQPtaurEL) at some point in the past - I got one of eBay and the natural soporific diesel clatter has been deadened down quite a bit as a result.

I've certainly noticed in the past that filling the footwell with bags etc. has a huge effect on engine and road-noise, so I think a lot of it comes through the bulkhead - decent thick floor-mats and soundproofing over the transmission tunnel definitely make a difference.

Headphones (as previously mentioned) or just an acceptance that you're living the dream of Land Rover ownership are probably the most effective solutions, though...

:)