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Message: <blockquote data-quote="BerniniCaCO3" data-source="post: 7477411" data-attributes="member: 636434">I've got a brand new 130amp alternator with 0 gauge wire going to the battery, and a 1040cca battery.  Not sure how much further I can upgrade those!To the fan, admittedly, I have a sum 24" of smaller 10 gauge wire between the battery and the point that the wire enters the fan motor.  There's a 30amp fuse in the middle, in front of the fan speed controller that acts as an intelligent fan relay, and that never blows.  Guess the current spike is never for long enough to actually melt/blow the fuse.  Would you suggest that that 2' of 10 gauge wire can be high-resistance enough to matter, and while unfortunately the tails right at the fan speed controller are fixed at 10 gauge, as is the wiring harness right at the fan, that beefing up the wire in between could help?</blockquote>

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