According to thermodynamics, the greater the difference between your heat source and your heat sink, the higher the efficiency of the engine. That's why watercooling the same engine will always produce more horsepower than an aircooled equivalent. Liquids have a much higher heat transfer coefficient that gases, so your heads will always be cooler with liquid cooling. Thus I don't doubt that cooling the aircooled heads with more airflow will produce more horsepower. If you want to read more about theoretical engine efficiency, pick up a basic thermo text and look up the Rankine Cycle. The 'net might have some background on this as well. -Karl (MSChE [hopefully PhDChE by next year] with heat transfer specialty) Karl and Kristina Bloss, Trexlertown, PA '87 Westfalia Weekender "Beverley" - 191K miles http://www.enter.net/~bloss/vw/ PA/NJ Vanagon owner's mailing list: http://www.enter.net/~bloss/vw/pavanagon/ |
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