[DeTomaso] Radiator Caps

[Kirby Schrader]

I ran a 24psi cap on the swirl tank for years because that was all that
seemed to hold when I backed off the throttle from 7,000rpm.
Anything less than 24psi and it'd always burp coolant.

I no longer have to use that as I have the swirl/expansion tank on the low
pressure side of the system like it should be.
:-))))

FWIW,
Kirby



On Wed, Sep 18, 2013 at 10:28 AM, michael at michaelshortt.com <
michaelsavga at gmail.com> wrote:

> Every pound of pressure raises the boiling point of water 3 degrees. if
> your system is designed for 10 psi and the cap is capable of holding that
> you have increased the boiling point 30 degrees.
>
> So a 16 psi cap could stand a temp of  260 degrees, whereas 22 psi could
> handle up to  278 degrees.
>
> I guess none of us want temps anywhere near 260 anyway, so perhaps the
> lower rated cap is sufficient.
>
> The next point then becomes, if the cap fails to release the pressure, then
> something else might, like a hose, gasket, etc.
>
> Michael
>
>
> On Wed, Sep 18, 2013 at 11:20 AM, Larry Finch <fresnofinches at aol.com>
> wrote:
>
> > Overflow is zero pressure cap.
> >
> > But why so high - 22PSI - on the surge tank cap?
> >
> > Larry
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>
> Michael L. Shortt
> Savannah, Georgia
> www.michaelshortt.com
> michael at michaelshortt.com
> 912-232-9390
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