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guywithlamboOffline
Post subject:   PostPosted: Aug 25, 2012 - 02:40 PM
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Joined: Oct 02, 2006
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Location: Thornhill,Ontario
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Don check the Roadster section on rads.
 
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carlossanz
Post subject:   PostPosted: Dec 12, 2012 - 02:10 AM
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Joined: Nov 11, 2005
Posts: 79
Location: COVINA CALIFORNIA
ok so is the extra electric water pump not needed if we used the spal fans should the rads be three core alum or two core is fine?
 
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jdinnerOffline
Post subject:   PostPosted: Dec 12, 2012 - 10:31 AM
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Joined: Nov 10, 2003
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Location: Toronto, Ontario, Canada
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carlossanz wrote:
ok so is the extra electric water pump not needed if we used the spal fans should the rads be three core alum or two core is fine?


I am not sure about the electric water pump. I have one installed in the lower rad hose to help cycle the coolant. It is wired to turn on when the fans turn on. I have never tested it to see if it will work without the extra water pump.
I can tell you it made no difference whatsoever in the cooling of the car when I installed it.
A radiator guy told me that a 2 core aluminum rad with work just as well as a 4 core copper radiator. Not sure how true that is but for the price it is worth a test.
The only thing that worked in keeping the temperature down was the Spal fans.

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carlossanz
Post subject:   PostPosted: Dec 13, 2012 - 04:02 AM
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Joined: Nov 11, 2005
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cool Jim ill try it with out the electric pump that would be a great savings lol if it works thank you Jim great help as always
 
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dBOffline
Post subject:   PostPosted: Dec 18, 2012 - 01:42 AM
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Joined: May 29, 2004
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Location: Milton, WI.
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Hi,
I have a 55 gpm electric water pump and I did not see my problems go away. Just another $400.00 disappear. Based on additional work and calculations, CFM thru the rads is the major factor. We did extensive thermal design at work and the Aluminum can pull the heat out of the system but then you have to wipe it off the radiator, blow it away. So all the extraction methods can get the heat to the rad, but you have to remove it from there.

dB............
 
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dleachOffline
Post subject:   PostPosted: Dec 18, 2012 - 03:32 AM
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Joined: Sep 28, 2008
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Isn't it possible to create a condition where the coolant is moving too rapidly to absorb sufficient heat from the engine or to cool adequately in the radiator? I'm just saying that a higher volume pump isn't necessarily the solution.
I guess that is what you are saying too, dB.

Don
Building a 6.0
 
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