Originally Posted by 07bluezx14
Is the big three upgrade, somewhat easy to do? Should I have the installers do it? Or can I do it myself? Either way,I'll have to pay for the wires. I can get 12 gauge at work, but it sounds like I need something bigger. Can I use something like THHN wire? I'll look at the big three again. thanks, chris
1 Gauge wire is quite large diameter. The connectors are harder to properly attach. The wire needs to be routed to prevent chafing and contact with components. If you have done lots of wiring this is an easy job. If you understand the operating principles of the electric system you are modifying it's easy. If you have the tools it's easy.
The best advice I can give is to make up all the replacement wires without taking apart your existing wiring and then replace them one by one. The article referenced does not recommend a fuse between the alternator and battery but I would suggest you consider it. Lots of these wires have a fusible link. It's pretty important. If the wire shorts against the body, it will burn down the car without a fuse.