In reply to a message from Robert Wilkinson sent Wed 16 Apr 2014:
some interesting facts about evans, and how it works.
a major problem with jag v12 get overheated and leak at the
head gaskets=blown gaskets, that usually is caused by,what
is refered to as a localised hot spot,usually in the rear of
the heads, poor flow,etc.
the hot spot where the water is,boils and forces the
cooling effeincy away from the spot,no cooling at that area
air bubble,rapid heat rise softens the gasket,and things go
down fast from there.(can also expand the alumium,and loosen
the evans does not boil into a pocket of air,375* temps. it
stays in contact with the metals, absorbing heat.
did you ever think about how nascar engines run at 250-300*
for 500 miles.
altho for racing some tracks dont allow evans, but we dont
race much ethier.
and in exremly cold temps it can get more viscous, pump is
important, but now we have electric pumps!!!–
The original message included these comments:
agrees on with stuff is that it has lower, not higher
cooling efficiency–unless cooling efficiency is defined
Specific heat and heat conductivity are both lower than
water/glycol mix (less heat absorbed from engine; less heat
given to radiator per liter of coolant), and viscosity is
higher (fewer liters/minute flow for a given pump, and
higher HP to drive the pump).
daytona fl. / Austin TX., United States
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