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Old 10-24-2002, 01:31 PM
waltmail waltmail is offline
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A fan shroud will make a world of difference. I don't get excited by flex fans. The shroud will create a venturi effect that will make a wind tunnel out of the shroud. You need to pull fresh air through the cooling tubes so that the heat in the coolant will be dissipated. Without a shroud much of the tunnel effect is lost around the perimeter of the radiator. Much of the pulling effect will take place around the radiator rather than through it. Another little technique for running cooler is to run straight distilled water as your coolant and add a rust inhibitor to the mix. Wintertime is different , depending on your climate, but the motor can operate much cooler without antifreeze. Antifreeze actually causes the motor to run hotter. Antifreeze only raises the boiling point of the liquid and lowers the freezing point. Many motors run 20 degrees hotter because of the antifreeze.
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