[Diy_efi] Off Topic: Car sound and heat insulation

[William Henning]

I watch some of those build shows on TV and the 4x4 guys use spray in truck
bedliner alot.  A popular one is Lizard Skin, http://www.lizardskin.com/.
The stuff is suppose to be pretty tough and would work well on the floors
and since it is a spray apply would work well in hard to reach areas.  Hope
this helps.

On Fri, Oct 26, 2012 at 7:25 AM, Ben P <benof1987 at hotmail.com> wrote:

>  So back in NZ I had a car that was a dream to be in. It stayed
> relatively cool in the sun, was quiet, everything shut with a thud, it had
> hardly any creaks and the ride quality was superb. The car was a 1989
> Mercedes Benz 300SE. And it handled a corner like a pregnant cow going full
> gallop through a hedge maze. But back to the point... I'm now about to have
> an 87 Suzuki Mighty Boy (you won't find many stateside, so the description
> is 80's budget Kei Class coupe utility) and it does NONE of those. I'm not
> going to get it to the standards of the Mercedes but I should at least be
> able to get everything but the aero noise down to current budget car levels
>
> Given that I'm going to pull it down for a rebuild and re-power anyway it
> is going to take little extra effort to address most of these concerns.
>
> Specific things I've noticed:
>
> There is a lot of exposed metal in the cab
> Very little insulation of any kind is used
> The temperature of the inside of the roof (very thin lining) changes
> rapidly and often
> I can hear everything mechanical in the car even when it's in perfect
> condition/adjusted correctly
> The carpet isn't tight and doesn't have much underneath it
> The doors sound like they have the structural integrity of a dented coke
> can
> Audio systems in similar cars (none currently in the mighty boy, but I
> have a 91 charade that sounds acceptable, at rest...) need constant volume
> adjustment depending on road speed
> No tinting in the tropics is madness
> Cheap cars from the 80's have no air-con
> Having a passenger or load in the vehicle increases ride comfort
> dramatically (to the point that it goes from below average to slightly
> above) in terms of small bumps.
>
> I was thinking of lining the outer door skins with this:
> http://www.jaycar.com.au/productView.asp?ID=AX3680
> The roof in a single layer of this (headroom is at a premium, I can only
> afford one extra layer here):
> http://www.jaycar.com.au/productView.asp?ID=AX3662
> I'm stuck as to what to do for the floor (and rest of the exposed cabin,
> actually). There is this stuff
> http://www.jaycar.com.au/productView.asp?ID=AX3689 but it's expensive and
> I'm not certain how durable it is when used under a carpet.
>
> Word on the street is that lining the inside door panel is worthwhile too,
> blanking off any unnecessary access holes. I may do that while I'm at it
>
> So what products have you guys used in regards to sound and heat
> insulation? And what tips have you got for me?
>
> Also note that the car will be re-powered with an 800cc motor at least
> (with 50% more power than stock) an extra 30kg won't be noticed much in
> acceleration.
>
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