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Alloy radiator cores? 

 

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 Post subject: Alloy radiator cores?
Posted: Mon Oct 03, 2005 10:46 pm 
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Without going into the garage and looking at my ED that I barely drive, is the standard radiator core alloy or steel? I was looking for a new radiator on ebay and there are a few types that advertise alloy cores with the normal plastic end tanks... are these worth getting?
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Posted: Mon Oct 03, 2005 11:09 pm 
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afaik EF-EL's and onwards had alloy core with plastic end tanks from new, not sure about older ones....

 

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Posted: Mon Oct 03, 2005 11:29 pm 
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My 5L has a copper core so does my girlfriends EL XR6, and My sisters EF. My mates EL wagon also has a copper core. I didn't even know you could get them with an ally core form the factory (EF-EL).

 

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Posted: Tue Oct 04, 2005 1:07 pm 
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My EL has a copper core with plastic tanks, radiator is Natrad & about 18 months old.

Have seen alloy ones on ebay though.

 

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Posted: Tue Oct 04, 2005 2:08 pm 
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Chef, I got a alloy one for my car off Ebay, $160 delivered, cheap. It seems to be good quality (hasn’t leaked yet... ) Although it hasn’t really made the car run any cooler.. I don’t think there is all that much difference between the copper and alloy ones.. I think Aussie desert coolers make a huge 3 core radiator for the falcons..
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Posted: Tue Oct 04, 2005 5:18 pm 
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When my alloy one went on the AU with electrolisis. I fitted a copper core one.
Runs the same temp a bit heaver but less likely to suffer electrolisis

ghaiman
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Posted: Tue Oct 04, 2005 8:32 pm 
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ghiaman wrote:
When my alloy one went on the AU with electrolisis. I fitted a copper core one.
Runs the same temp a bit heaver but less likely to suffer electrolisis

ghaiman


Electrolysis is caused by stray current, usually a earth lead will stop it.

 

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Posted: Wed Oct 05, 2005 5:21 pm 
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tjb45 wrote:
Chef, I got a alloy one for my car off Ebay, $160 delivered, cheap. It seems to be good quality (hasn’t leaked yet... ) Although it hasn’t really made the car run any cooler.. I don’t think there is all that much difference between the copper and alloy ones.. I think Aussie desert coolers make a huge 3 core radiator for the falcons..


There the one's I was looking at, might grab one as they seem good value.
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Posted: Wed Oct 05, 2005 8:14 pm 
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I dont see the point? I thought copper was a better transferrer of heat anyway? And as far as the heat, during normal every day running, it will stay at the temperature of the thermostat! So not seeing a change would be a good thing.

 

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Posted: Wed Oct 05, 2005 8:21 pm 
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I had a 78 thermostat in, and the car was running at about 95, with the standard radiator, and the alloy one.. I only changed because last time I had the top radiator hose off it took most of the plastic housing with it, and the hose would only just clamp back on, so I had to do something.

I've noticed that on ebay they also sell a radiator that is about 5mm thicker then the standard. This might also help.
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Posted: Wed Oct 05, 2005 8:26 pm 
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Apparently EF thermos help heaps too. Mine only gets hot with the air con on, but its idling too low when the airs on and not blowing much air, if i rev it up it starts dropping the temp... cant beat a digital temp read out to know exactly whats going on. Yay wolf :wink:
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Posted: Wed Oct 05, 2005 8:53 pm 
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tjb45 wrote:
I had a 78 thermostat in, and the car was running at about 95, with the standard radiator, and the alloy one.. I only changed because last time I had the top radiator hose off it took most of the plastic housing with it, and the hose would only just clamp back on, so I had to do something.

I've noticed that on ebay they also sell a radiator that is about 5mm thicker then the standard. This might also help.


Maybe the old one was also clogged up.
As Andrew J points out Copper is a better conductor of heat. AFAIK alloy radiators only came about due to the price of copper.

 

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Posted: Wed Oct 05, 2005 9:33 pm 
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Funny story about the old radiator. Only two months ago I had the tanks taken off and it all cleaned out. Wasn't I Pi**ed when it broke after only two months...
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