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Registered
Join Date: Aug 2003
Location: BC Canada
Posts: 222
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What is the max output of a stock alternator?
I’m curious what I could expect to be the maximum amperage output of a stock alternator (1976 3.0). I see there is an upgraded alternator available for $500 that puts out 95A.
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05-05-2004, 07:49 AM
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Registered
Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Frostie,
Stock output was 980 Watts, 70 Amps. If this 'upgrade' you are talking about does away with the external regulator, then I would recommend that you pass ... internal-regulated alternators have a very, very bad relibility record since 1982!!!
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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05-05-2004, 08:05 AM
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Registered
Join Date: May 2003
Location: Manhattan Beach, CA
Posts: 2,350
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Max alternator ratings are never to be considered the continuous mode especially
under very hot ambient conditions. The alternator should be run at about 80% of the max for a long term reliable operation. Also, the air cooled engine's heat adds to the operating temp of the alternator because of its' location which further reduces its' max output current to prevent diode failures.
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Have Fun Loren Systems Consulting Automotive Electronics '88 911 3.2 '04 GSXR1000 '01 Ducati 996 '03 BMW BCR - Gone |
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05-05-2004, 08:32 AM
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Registered
Join Date: Aug 2003
Location: BC Canada
Posts: 222
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thanx for the feedback guys
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05-05-2004, 10:05 AM
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