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From: CHUCK NICODEMUS
To: William Lewis
Cc: alpine newsgroup
Subject: Re: overheating
Date: Friday, September 05, 1997 12:41PM
>Bill , what percentage of anti-freeze or coolant are you running to
>water amount?? I understand (and here comes a 45 page reply) that
>certain ratios may either enhance cooling or reduce cooling effects of
>that given percentages??
>Just a thought, Dick ? Tony? Jarrid? any one?
>chuck
Anti-freeze, is for exactly that, to keep the block from freezing
during winter months. It mixes in a liquid with a lower freezing point,
and the net freezing point of the liquid is more or less an average
of the two solutions' freezing point.
Anti-freeze is also formulated to boil at higher temperatures than
does normal water.
The bummer about anti-freeze is that although it will make the coolant
boil at a higher temperature, it also reduces the coolant thermal
conductivity, and thus it actually cools worse, but does protect the
engine from boiling off the coolant, which would result in no cooling
capabilites at all.
Since anti-freeze doesnt really add cooling efficiency through
its allowance to run at higher temps, its only real benefit is
through its corrosion resistance.
There are some products like water wetter by Red-Line that act
as a surfactant, and allow more molecules of water to bond with
the metal of the cooling system. This results in even better thermal
conductivity than water alone, plus the added benefit if corrosion
resistance.
Anti-freeze is not allowed on many race tracks, and water alone
tends to rust up or corrode the engine away. We are forced to
use Water Wetter, which does the trick, and most people
seem to believe that the temperature does go down at least
a few degrees. I have never heard of anyone complain of
the temperature going up anyway.
Jarrid Gross
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