Also look at this site
http://www.carolinarodshop.com/Store/Griffin/radiator_electrolysis.htm
I'm in the business and we see aluminum radiators ruined very quickly
because of electrolysis as noted in this article. It's not as much of a
concern with copper core radiators. All aluminum radiators are the worst. A
friends went bad in a few months and wizard didn't warranty it.
If you go all aluminum be cautious and aware that this can occur. It's an
expensive lesson.
JVV
-----Original Message-----
From: Darrell Walker
Sent: Tuesday, May 22, 2012 2:45 PM
To: Triumphs
Subject: Re: [TR] TR3 Aluminum Radiators
This is from Wizard Cooling's web site, so they could be biased, but they
are
saying the advantage of aluminum is in the construction.
https://wizardcooling.com/topic/11-faq.aspx
Why are aluminum radiators better
than copper/brass?
It is true that Copper does dissipate heat better than
aluminum, but the benefits are in the design differences. Because aluminum
is
much stronger than copper aluminum core manufactures are able to make the
tubes up to 1.50" wide, opposed to .50" wide for a copper tube. The benefit
of
this extra tube width comes from the additional contact that is created
between the fins and the tubes, as there are less spaces or voids between
the
tubes (due to a fewer amount of tubes). If you take a look at a cut away
section of copper brass radiator that is 2.25" thick, then multiply the
number
of tubes in a row by the width of the tubes you will find that there is a
total of 1.50" of "contact" between the fins and the tubes on every row.
Now,
do the same evaluation on a 2.25" aluminum core and you will find that there
is 2.0" of "contact". That is 33% more "contact" than the copper brass. This
is critical as the fins accomplish a large percentage of the heat
dissipation.
The less contact between the fin and tubes, the less effective the fins.
Another benefit of the wider, aluminum, tubes is that a larger volume of
coolant is now placed inside the core, were the heat dissipation is
occurring.
Between the additional contact between the fins and tubes, the additional
fluid in the core, and the additional contact between the fluid and the
tubes
you can expect to see at least a 25% increase in the heat transfer
capabilities of an aluminum radiator over a copper/ brass of the same
thickness.
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