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Old 11-28-2010, 09:47 AM   #8 (permalink)
ShadeTreeMech
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Join Date: Apr 2009
Location: Arkansas
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The Van - '97 Mercury Villager gs
90 day: 19.8 mpg (US)

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I think it's a great idea if coupled with auto engine start/stop. And keeping the heat out of the passenger compartment is nothing that couldn't be solved with a bit of insulation. The aluminum could also be close to 1/4" and still be very light.

Some copper tubing for the antifreeze and a bit of heat transfer grease such as used in computer heat sinks or even some old fashioned soldering of the tubing to the aluminum would be conducive to the heat conduction. And with such a large surface area, the lack of air flow at a standstill may not even be a problem.

This would be most beneficial for a vehicle that is mainly used on the highway for the same reason a full grill block would be most helpful for a highway vehicle; ie high amounts of air flow.
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Quote:
Originally Posted by jamesqf View Post
I think you missed the point I was trying to make, which is that it's not rational to do either speed or fuel economy mods for economic reasons. You do it as a form of recreation, for the fun and for the challenge.
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