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Old 10-15-2008, 10:21 PM   #34 (permalink)
EcoModding Lurker
Join Date: Oct 2008
Location: United States of Texas
Posts: 43

Princess - '08 Chevy HHR LSSR
90 day: 23.66 mpg (US)
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Why dont you use an underdrive pulley?

Why don't you use an underdrive pulley. From your tests it is obvious that the Alternator does have a significant draw. A solar charger would help some but I do not think they put out enough to replace alternator. Still anything you can do to reduce the load will help you.
Most underdrive crank pulleys slow the alternator, water pump and airconditioner to free up some power and increase mileage.
I do not think it is a good idea to completly eliminate the alternator but you can limit the horsepower it takes to run it and the electric draw need to charge batteries.
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