[Healeys] Radiator

[warthodson at aol.com]

If the goal is to improve heat transfer efficiency, reducing the % of
anti-freeze will help. There will still be sufficient rust & scale inhibitors
as well as water pump lubrication with a reduced % of anti freeze. 50% is just
a convenient, easy to mix % & is not necessary in all climates.
Gary Hodson


-----Original Message-----
From: Oudesluys <coudesluijs at chello.nl>
To: warthodson <warthodson at aol.com>
Cc: jmsdarch <jmsdarch at sbcglobal.net>; healeys <healeys at autox.team.net>
Sent: Thu, Jun 21, 2012 9:10 am
Subject: Re: [Healeys] Radiator


It is not the anti freeze properties you should be to worried about. It
is for the rust and scale inhibitors that you use "anti freeze", or
better: coolant. So use at least 50% of concentrate or 100% ready mixed
coolant.
Kees Oudesluijs
NL

Op 21-6-2012 14:54, warthodson at aol.com schreef:

..................Also, using a lower % anti freeze mixture such as 25%
instead
of the common
practice of 50% will improve heat transfer. Water has a better coefficient of
heat transfer than anti-freeze. Do not use more anti-freeze than your climate
conditions dictate. Finally, install a thermostat that has a moving sleeve
that blanks off the bypass port in the head when the engine gets up to
operating temperature. Using a thermostat without a sleeve allows significant
amounts of coolant to bypass the radiator & simply return to the engine
un-cooled.
Gary Hodson