[DeTomaso] radiators

[Charles Engles]

Dear Bob,


          I asked Ron Davis, the big cheese and cooling smart guy of Ron
Davis Radiators, about the good news/ bad news of Brass versus Aluminum at
the official Tech Session on Cooling at the Phoenix Rally.


          He said---and I summarize:

Brass: less expensive; easier to repair; more durable.    Bad news: heavier;
thermodynamically a bit less than aluminum and construction also lessens its
thermodynamic efficiency.

Aluminum: thermodynamically more efficient and becoming more common and
price is trending down--a bit; lighter.  Bad news: less durable; much harder
to repair; can chemically react badly to more things than brass.

He said that if *whatever* you're currently using is working---then that is
great.  Don't change it!  Both of my cars are running brass upgraded
radiators that are about 15-18 years old.  Both have had one or two minor
repairs.  Only during last year's Heat Storm of monster 100+ temps did the
old brass radiator and the 485 hp cause coolant temps greater than 205
degrees.

                      Warmest regards,  Chuck Engles

-----Original Message-----
From: detomaso-bounces at realbig.com [mailto:detomaso-bounces at realbig.com] On
Behalf Of Bob Lehmann
Sent: Saturday, June 16, 2012 8:39 AM
To: detomaso at realbig.com
Subject: [DeTomaso] radiators

Why is everyone going to aluminum radiators over brass/copper radiators?  Is
there really a large difference and if so what is it?  Thanks.
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