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Old 07-16-2006 | 12:21 PM
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B.L.E.
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Default RE: Cool Fuel Temperature & Engine Performance??

Methanol has a specific heat of .6 BTU per pound, thus to raise the temperature of a pound of methanol from 60 degrees F to 149 degrees F (methanol's boiling point) requires 53.4 BTU of heat.

On the other hand, methanol's latent heat of vaporization is 506 BTU per lb at 60 degrees F. That means that one pound of methanol takes away 506 BTU of heat just by turning into a vapor.

It's methanol's vaporization that does the lion's share of the fuel related cooling. Chilling the fuel only makes your engine harder to start for all practical purposes.

If you want to experience for yourself what "latent heat of vaporization" is, wet a t-shirt with HOT water and put it on. Now stand in front of a powerful fan and feel how cold that shirt gets as the wind starts evaporating that water.