[DeTomaso] cabin heat-A/C

[michael@michaelshortt.com]

Matt,

Those were going to be my suggestions as well: shut off water to the heater
coil under the dash by either a set of valves or simply create a bypass hose
at the engine and feed it back into itself, make sure that if you leave the
existing hoses in place that you plug the ends to keep any critters from
going condo.  Secondly, Dynamat on the inside is easy to apply inside the
cabin on the firewall. more difficult on the engine side, if nothing else,
you can apply it to the center removable section very easily.  Thirdly,
while the conductive heat properties can't be completely minimized by common
household insulation, you can buy a hot water heater insulation blanket and
cut it up to create a liner for the backside of decorative trim panel behind
the seats to create a giant "heat barrier air layer", trapping the heat
inside that space and reducing the radiant properties of the
firewall somewhat, although on long jaunts, it will equalize eventually on
both sides.

Michael Shortt
Savannah, GA
www.michaelspantera.com



On Sat, Dec 5, 2009 at 3:09 AM, <MikeLDrew at aol.com> wrote:

>
> In a message dated 12/4/09 21 58 27, matt at nwpantera.com writes:
>
>
> > 1. Reduce heat in cabin.
> > -It seemed a lot of heat came from the firewall and the rear window.
> >
> > Since there is no heat source near the window while under power it must
> be
> > conductive from the firewall?
> > Asking recomendations for best heat/sound solutions on firewall/window.
> > I'd like to keep the stock single pane window.
> > Since I had no A/C it was easy to find multiple heat sources and at speed
> > there was no denying a hot window inches from your head.
> > I've got maximum insulation already but it's designed for sound and not
> > heat and is not doing the job.
> > The cooling tube heat and no fresh air are another issue but contribute
> as
> > well and will be tended to.
> >
> >
>
> >>>On more than one occasion, I have been uncomfortably cold while driving
> my Pantera, which has no A/C installed.   That tells you that my efforts to
> insulate the cabin from external heat sources have been successful!
>
> I can't say what worked since I didn't perform my modifications in an
> iterative fashion.   While the car was apart, I did a bunch of stuff, and
> when it
> came back together, It Was Good.
>
> I have a reflective stainless steel firewall cover; in between the
> stainless and the factory steel firewall is a layer of insulation, perhaps
> 3/8 inch
> thick?
>
> The inside of the firewall is covered with Dynamat; that doesn't do a whole
> lot for insulation probably.   But atop the dynamat is another layer of 3/8
> insulation.   I've also got 3/8 insulation lining the entire center of the
> monocoque, from the front to the back of the cabin.
>
> All these things combined mean that I get next to no heat transfer at all.
>  You can feel just a little bit of heat, at the bottom of the removable
> center section of my upholstered back panel, where it joins the back of the
> center console.   But when you hold your hand against the flat portion of
> the
> interior panel, it's barely warm.
>
> There is some heat from the glass, but it's not too bad.
>
> Mike
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-- 







Michael L. Shortt
Savannah, Georgia
www.michaelshortt.com
michael at michaelshortt.com
912-232-9390


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