Overheating in town

[WyoBronc11]

I was looking at the Chevy Universal 22", my timing is set at 5 degrees BDC, I will check the temp with the thermometer tomorrow. And as far as temp on my Equuis gauge says about 220 degrees before i shut it of. I have a 13lb lever cap so when i pull the lever it gushes fluid into my overfill, I did check the overfill bottle and it had less in it than earlier.

I want the radiator because it has better heat transfer than the copper.

 

[regshawn]

I was looking at the Chevy Universal 22", my timing is set at 5 degrees BDC, I will check the temp with the thermometer tomorrow. And as far as temp on my Equuis gauge says about 220 degrees before i shut it of. I have a 13lb lever cap so when i pull the lever it gushes fluid into my overfill, I did check the overfill bottle and it had less in it than earlier.

I want the radiator because it has better heat transfer than the copper.

I got bored and did a lite search...here are a few quotes from the article in the link, I found it to be a little interesting. I would still by aluminum just for the bling factor for my Bronco, but the 4 core seems fine.

"The thermal conductivity or heat transfer rate of copper is 92% versus aluminum which is approximately 49%."

"... where the radiator is concerned core design and NOT material had the greatest effect on temperature drop"

http://www.hotrodhotline.com/md/html/aluminum_vs_copper.php

 

[WyoBronc11]

I checked it with my coolant temp with a temp probe and it read 180 degrees while my gauge reads just over 200

 

[Socal Tom]

I did a lot of research on the copper vs aluminum a while back. The short answer..
Aluminum is lighter, but have poor heat exchange ability vs copper. To overcome this good aluminum radiators use wider tubes ( over 1 inch). Copper rads with 1 inch tubes would be too heavy, so you end up with 5/8 or so.

A good aluminum radiator is just about the same as a good copper radiator, but it will weigh less. A good copper radiator will probably last longer than aluminum, especially in an off road rig with an iron block.
Tom