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Old 04-21-2014, 10:56 PM
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jps8460 jps8460 is offline
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Default Winching with high OP alternato

Hi All,

I upgraded my alternator about 3-4 months ago and have a question about winching.

I'm going to call Mean Green tomorrow, but wanted some input from you guys as well.

As a part of the upgrade, I added a 6awg run from my alt directly to my battery.

The rated output at idle is 200A, my winch at full load will pull in the neighborhood of 400A.

Should I be concerned about this damaging my alternator with long winch pulls?

Why don't long winch pulls damage factory alternators?

-Jackson
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Old 04-21-2014, 11:35 PM
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Rzeppa Rzeppa is offline
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No concern for a factory alternator. HO alternators can overheat though when putting out max power for extended periods. That can lead to (too thin) insulation burning through in the windings, which leads to less output and potentially even more overheating.

Because the alternator can only put out what it can put out. On a 60 that's around 50-60 A if memory serves. And that's WAY above idle, more like 1500-2000 RPM. When winching, most of the juice comes from the battery(ies) anyway. And don't believe 200A at 650 RPM, that's BS.
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Old 04-22-2014, 12:09 AM
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jps8460 jps8460 is offline
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gotcha. I thought it sounded over rated as well. I looked back into the manual and I guess that's at 2000rpm. Regardless, it's overkill for what I'll be doing with it.
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