05-13-2009, 12:06 PM
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#11 (permalink)
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A True Z Fanatic
Join Date: Mar 2009
Location: Houston, TX
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Quote:
Originally Posted by TheWeatherman
We're not talking about the intake part of this. This is a radiator issue, not an MAF issue. Elevation & pressure is the biggest factor in what you're talking about, not so much humidity.
After numerous thermodynamics classes, the humidity you speak of for cooling is totally different. You're talking about latent heat processes which pretty much don't affect your radiator. Radiators rely on the movement of air over the exchangers which is a conductive process, not a latent process. Your A/C works on latent heating/cooling, not radiators. Actually, humid air can hold more heat than dry air, which would make it better to have humid air running over your heat exchanger. It's similar to a moist adiabatic process vs. dry.
Don't give people ideas about humidity causing this issue. It is completely irrelevant. Any engineer or atmospheric scientist knows this.
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Our numbers indicate that our radiators aren't doing much for our oil temps. Water temp in the radiator is fine, but the radiator water isn't getting enough heat out of the engine oil (not enough transfer between the two). Therefore the cooling of the block itself is a factor (engine bay heat). You don't think there's an effect there?
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