As you can see from the chart, disconnecting your alternator will save you gas mileage. Source:
http://metrompg.com/posts/alternator-optional.htm
Why would you want to add a HHO device to your car that increases the amount of power needed from your alternator?
This HHO webpage even encourages you to add a bigger alternator and even add a secondary alternator!
http://www.hydrogenboostnow.com/200ampalt.html
I learn a lot about electronics and engines from sailing boats. Read this quote about the power required to spin an alternator:
Quote:
The genset starts and runs at a preset throttle level providing 8-12 horsepower at around 2800-2900 rpms and consumes fuel (with slightly fluctuating rpm) based on the alternator loading. A 200 amp alternator requires a minimum 8HP motor, so the Kubota 482 is a good match. Because it is direct drive and there is no 3:1 pully driving the alternator up to 4500-6000 RPM (at 1500-2000 engine rpm) as with most engine alternators, the sustained amp output sits comfortably around 180 amps (200 when cold, 180 when hot). Fuel consumption is approximately 1 liter per hour at the 2800 rpm setting. That's enough on this for now, back to the installation...
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Source:
http://www.sailwhisper.com/logs/news_20080420.php
The man ordered an engine that would spin his 200Amp alternator on his sailboat.
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