Topic: Alternator cable and Battery cables, anyone upgrade them?

[Fowlhunter]

I looked at the cable, I felt the cable as well but can't seem to tell that it has any kind of connection in it??  Maybe it's a solid (no splices/connections) cable but considered a fusible link???   

[Richie_Rich]

Fusable link is regular wire, but designed to melt at a certain temperature.
When you start approaching the amperage limit, the wire heats up and then will melt.

Your efans should be running off the battery or a circuit to the battery.
Not sure on the amerage needed, but there should be plenty of reserve for the alternaor to run the fans.
If not, the battery will.
When the fans shut off, the alternator charges the battery back up.

You can check how much amerage your truck uses while running by getting a clamp style amp meter.
I think Harbor Freight might have a cheapy unit that does DC amperage.

When "upgrading" any wiring, you also need to consider the qulaity of the wire and especially the connectors.
Most of the connectors from the autoparts stores are as cheap as can be.
Sure you might have a 4 gauge wire, but the connector has a fraction the capacity of the wire, so the wire is a waste.

[The Beast]

The 'big 3' is actually the following cables swapped out:
1) Alternator Positive to Battery Positive (fused)
2) Battery Negative to Chassis
3) Chassis to Engine Block

Most that do this upgrade use 1/0 awg cable and it's normally done for high amperage stereo systems. You can find everything you need(cable, connectors,fuse blocks) at a good car audio shops.