Why go through all that trouble? Especially for a driveshaft driven alternator.
At highway speeds you'll be in overdrive where the output shaft is spinning faster than the engine is. Like my car for example, 3,000rpm at 70mph, the overdrive gear is .78:1 making the drive shaft spin at 3846rpm. That's giving you a faster speed than the engine is running while also adding the load from the alternator and whatever extra weight your belts and pullies add. PLUS, you have more belt contact area that will cause more drag than if you left the alternator where it originally was.
Your alternator will pretty much be putting out full-charge all the time in town, especially if it's not running all the time as is the case in stop and go traffic, which will lead to premature failure more than likely due to overheating of the regulator. This will be more of an issue with people running electric cooling fans.
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- Kyle
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