Trouble cooling 351W in 66 stang - Mustang Evolution

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Old 05-22-2014, 05:06 PM   #1
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Trouble cooling 351W in 66 stang

Any suggestions for the right radiator to cool this off? I've changed everything but the radiator so far. Want something I won't ever have to worry about.
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Old 05-22-2014, 05:38 PM   #2
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Do you have a fan shroud?
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Old 05-22-2014, 05:44 PM   #3
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Yes, I've tried a shroud with no luck
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Old 05-22-2014, 11:25 PM   #4
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What radiator do you have in it now?
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Old 05-30-2014, 04:32 PM   #5
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4 row
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Old 06-05-2014, 09:35 PM   #6
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I'm using a Northern aluminum radiator with a Kooler Cooler water pump, 5 blade mechanical fan and Water Wetter additive in a 50/50 water antifreeze mix with no problems. Good luck Click image for larger version

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Old 06-05-2014, 10:38 PM   #7
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Quote:
Originally Posted by Daniod9 View Post
4 row

I've heard that it is possible to have too large of a rad, and the pump isn't able to move the water through the rad fast enough to create turbulence. So the water that's cool stays to the outside and the warm water doesn't touch the rad a lot so it doesn't dissipate it's heat. Like a large slow river - near the banks the water is pretty much still. In a small fast river the banks are turbulent.

Maybe a high flow water pump? Or a smaller pulley on the water pump maybe so it spins faster?
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Old 06-06-2014, 02:11 PM   #8
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The other thing I was thinking, how are you determining it's running hot? The gauges and sensors aren't very accurate.
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Old 06-06-2014, 09:40 PM   #9
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If its overheating after a rebuild, check the head gaskets, the big water passage openings in the gasket should go to the back of the engine. I have seen those gaskets installed backwards before and he never could get it to stop overheating until he corrected his little issue there.
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Old 10-13-2014, 10:30 PM   #10
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You can put in an additive that makes it run cooler. Just go down to advanced auto and they will have it. I put it in mine and it has worked extremely great. It's the cheapest, quickest and easiest fix.


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