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Old 07-24-2010, 02:19 PM   #191 (permalink)
Dr. Jerryrigger
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Join Date: Jun 2010
Location: mass
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The Sh*t-Box - '99 Subaru Impreza Outback Sport
90 day: 27.81 mpg (US)
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all good points, I am also skeptical of this working, but I like to be skeptical of most things I try, it results in more accurate findings.
The problem of over spinning the alternator could be addressed with either a RPM sensitive let off valve or a simple governor, like the one is a music box (I don't know if you've ever taken one apart...) It's a shaft with a sheet metal "fan" that forms a T, as the T spins it has air resistance which increases at a rate of RPM^3. If properly sized it would make it imposable for it to spin out of limit, and would add very little extra load an normal speeds.

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