Originally Posted by Stinkbug
Thanks for the advice on the winch, however I should have worded my question better. I was inquiring about what gauge to use on the "Big 3".
As far as the alternator grounding wire goes.... Should I assume the 6 gauge is adequate?
Once you increase your electrical loading, upping your mains is a good idea - bear in mind that the OEMs are cheap, and use "just enough" wire for the usage they
anticipate (which means full alternator output at 25-40% duty cycle.)
Considering what people like us tend to do with our vehicle, I will typically assume 100%dc @ 100% output, with pessimistic assumptions for operating conditions. It's a bad habit I've picked up from dealing with too much OEM equipment failure.
Once you've upped the engine block ground, the supplemental ground to the alternator case can probably stay 6AWG - it's not very common that I get requests for replacement (and everyone seems to want to run it somewhere different, so I don't have a hard figure on how long that should be. However, it seems to be most common that it gets run to the stud where the block main ground goes - I should have kept that one.)