View Single Post
Old 01-22-2012, 12:02 AM   #19 (permalink)
3dplane
EcoModding Apprentice
 
3dplane's Avatar
 
Join Date: May 2008
Location: Florida
Posts: 158

14 Mirage - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 68.74 mpg (US)
Thanks: 35
Thanked 107 Times in 38 Posts
Quote:
Originally Posted by Andrew63 View Post
Is 'downsizing' the alternator a possibility? If so, under what conditions? Do I need to get LEDs, reduce electrical loads, etc.
Reducing electrical loads is always a good idea!

Downsizing the alternator would have to be defined a little better but the way it sounds,the answer is no. No matter how small alternator we put on there it will try to achieve the same thing as a large one: Bring that battery voltage up to the desired level. A small alternator will go full output and burn out before the battery voltage elevates to a level where the voltage regulator would allow it to reduce charging current.

Now limiting charging output could work to reduce the force needed to turn the alternator but I don't know of a simple way of doing that. Besides it would just take longer to charge at a reduced output,or never charge sufficiently if the commute is short IMHO!
Barna
__________________

  Reply With Quote