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05-07-2013, 11:07 PM
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#11
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pain's fun, hit me again
Join Date: Sep 2009
Posts: 6,264
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My massive aluminum radiator cost me around $100. Copper was 4x that
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Quote:
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Originally Posted by Bruce Lee
Forget about winning and losing; forget about pride and pain. Let your opponent graze your skin and you smash into his flesh; let him smash into your flesh and you fracture his bones; let him fracture your bones and you take his life. Do not be concerned with escaping safely — lay your life before him
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05-07-2013, 11:15 PM
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#12
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Super Moderator
Join Date: Dec 2007
Posts: 6,850
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Quote:
Originally Posted by Shaolin Crane
My massive aluminum radiator cost me around $100. Copper was 4x that
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I <3 forced induction.
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05-07-2013, 11:26 PM
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#13
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by BRUTAL64
See I know how smart you are...I had faith  |
I didn't know that. But brass is an alloy of copper and zinc, so how much better would depend on the alloy composition. From a thermal conductivity POV Copper > Aluminum > Zinc. But heck yes, if a radiator had a substantial portion of total copper it would be able to conduct more heat away from the coolant. But aluminum is very good as far as heat dissipation is concerned. It's also way more plentiful and cheap than copper.
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05-07-2013, 11:34 PM
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#14
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Internet Tough Guy
Join Date: Jun 2008
Posts: 1,545
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I have a VERY large aluminum radiator int he vette runs 180 normal driving. 215 at the track.
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2007 C6 z51 416ci, KW variant III, Wilwood WS6, Traqmate.
2005 F-350 PSD 4x4 DRW Lariat
2013 Mustang GT Grabber Blue, track pack, Brembo, Recaro, 3.73s
2009 Jetta Auto 2.5 liter
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05-08-2013, 12:09 AM
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#15
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Glenn, aluminum corrodes. But aluminum also cools faster than copper.
Adam, I do have a thermostat but it's gutted so it really just a restrictor plate.
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05-08-2013, 03:56 AM
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#16
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I, Vettezuki
Join Date: Feb 2006
Posts: 14,754
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Quote:
Originally Posted by 94cobra69ss396
Glenn, aluminum corrodes. But aluminum also cools faster than copper.
Adam, I do have a thermostat but it's gutted so it really just a restrictor plate.
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Well, I unless I misunderstand the meaning of thermal conductivity, copper "conducts" far more heat than aluminum does.
http://www.wolframalpha.com/share/cl...gudn978&mail=1
Copper sure as hell corrodes (copper oxide). It's usually regarded as aesthetically pleasing, like a patina. See all those green copper roofs in the old world. That's copper oxide. HOWEVER, brass, is an alloy with zinc, and is more resistant to being destroyed by oxidation, just kind of gets a tarnish. Aluminum almost instantly get's a layer of aluminum rust in the presence of oxygen, but it is very thin, non-destructive, and prevents further oxidation.
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05-08-2013, 07:55 AM
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#17
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Fast & Filthy
Join Date: Jun 2008
Posts: 3,840
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Copper does absorb heat better than aluminum. The advantage of the aluminum radiator is in the tubes. Copper/brass radiators use smaller tubes like around a 1/2 -3/4 inch where an aluminum radiators uses wider tubes that are 1 to 1 1/2 inches wide which provides a larger cooling area. The radiator in the Chevelle has 1 1/2 tubes and seems to work fairly well even with the cheap electric fan.
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05-08-2013, 11:54 AM
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#18
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Quote:
Originally Posted by 94cobra69ss396
Copper does absorb heat better than aluminum. The advantage of the aluminum radiator is in the tubes. Copper/brass radiators use smaller tubes like around a 1/2 -3/4 inch where an aluminum radiators uses wider tubes that are 1 to 1 1/2 inches wide which provides a larger cooling area. The radiator in the Chevelle has 1 1/2 tubes and seems to work fairly well even with the cheap electric fan.
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That is true about the bigger tubes...but it can be a problem under CERTAIN circumstances.
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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05-08-2013, 12:34 PM
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#19
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Neanderthal
Join Date: Mar 2008
Posts: 5,320
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Ok...Class there are two BIG problems with Alum rads...
What are they???
Waiting for an answer
Hint it is NOT that it corrodes
But it is similar.....actually it could be but not from water.
The other problem Kills the Alum Rad in seconds...
So boys and girls what are they?
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64 Vette Roadster 400 ci
1990 F150 351 ci SuperCharged
48 Harley Pan Head 76 ci
2016 Nissan Altma
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05-08-2013, 01:03 PM
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#20
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Super Moderator
Join Date: Dec 2007
Posts: 6,850
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Quote:
Originally Posted by BRUTAL64
Ok...Class there are two BIG problems with Alum rads...
What are they???
Waiting for an answer
Hint it is NOT that it corrodes
But it is similar.....actually it could be but not from water.
The other problem Kills the Alum Rad in seconds...
So boys and girls what are they? |
They are:
Not relevant, because
a) They have proven themselves to last long without issue
and,
b) They have proven themselves to keep high hp mills cool, all day long.
What's wrong with copper brass radiators you ask?
They are:
a) Heavier,
b) More easily damaged and internally warped because they are softer,
c) More expensive,
d) Less aesthetically pleasing,
and,
e) More likely to corrode.
Class dismissed 
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I <3 forced induction.
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