High Output Alternator's for 2nd Gen 4runner's
12-24-2014, 01:22 AM
#21
Interesting things if one upgrades the alternator output it is the wire coming off the B terminal(alternator) that carries the load to the battery.Via the fuse block
Some bypass the fuse block and run unprotected to the battery but that is another chapter.
If that wire is left the original size plus being old and tired and your still running the stock circuit protection you are only going to limit yourself to the output of the stock alternator.
Some bypass the fuse block and run unprotected to the battery but that is another chapter.
If that wire is left the original size plus being old and tired and your still running the stock circuit protection you are only going to limit yourself to the output of the stock alternator.
Added circuits should be powered from a fuse connected directly to the battery and not passing through stock fuse block.
Someone with upgraded alt posted earlier about blowing his fusible link when running a lot of load. That will happen when you leave alt-to-batt cable connected to stock location and battery is not enough to power added circuits. That is covered under one of the worst-case-scenarios I mentioned here.
To prevent that, Cheftyota4x4, Redeth and I moved alt-to-batt cable directly to battery but through a fuse/fusible link, wired as shown here.
With this wiring, battery and alternator will always share load accordingly without affecting stock fusible link/fuse block system. Worst-case, auxiliary circuit fuse would blow, or alt-to-batt fusible link would blow. Easy to troubleshoot and replace than troubleshooting that fuse network in stock fuse block.
Faults, overloads, shorts in auxiliary circuits would not affect stock fuses/wiring.
Last edited by RAD4Runner; 12-24-2014 at 01:23 AM.
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