big 3 upgrade

A while back I asked about this upgrade. Most people said to do away with the factory wiring and just use one wire, the new, bigger wire. I looked back to a post from about a month or so ago and seen an article that someone had posted from sounddomain.com called "the official big 3 upgrade" and it had exactly the opposite info and most people at that time went along with that topic. I printed it out back then, and looked it over today, because I am getting ready to upgrade my car. I am a little confused on which way to go now. I was getting ready to take all the factory wires out and running new wires, but if it isn't neccessary I would rather just run the new wire and leave the old wire also. What is the majority ruling on this?'85 Toy

"Take all the factory wires out" from where to where?Support the12volt.com

My take is that current will flow along the path of least resistance, so that even if the original wires were left in the car the current would take the path of the larger, lower-impedance wire.  So just leave the original wiring intact.  (DYohn will let me know if I've missed the point.....:)

Yea, that's right.  I'm not sure what the original poster is asking however.Support the12volt.com

Here is good point from haemphyst in another post. "What happens if the fuse on the big one (the one connected to the battery) blows, and the load is more than the smaller wire can take? Now you are in a serious overcurrent condition, and things can only get worse from there... Just something to think about... This is why it is NEVER good to run two wires froma source to a single load through two paths..."Nik

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I think that only applies with a HO Alternator though.Nik

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oonikfraleyoo wrote: Here is good point from haemphyst in another post. "What happens if the fuse on the big one (the one connected to the battery) blows, and the load is more than the smaller wire can take? Now you are in a serious overcurrent condition, and things can only get worse from there...

Well, as long as the smaller wire is properly fused too, it wouldn't matter as the fuse will protect the wire.

I am still wondering what supradude was really asking, though.

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I remember the post he is referring to.  It links to a post on sounddomain where the author said to leave the original Big 3 wiring intact and add the upgraded wiring (for the reason i posted).  Supradude wants to know whether to pull out the old or leave it there.  Battery to chassis ground;  alternator to battery;  chassis to engine block if there is one...

Hey, i have a buddy with a mk3 supra turbo and just did this. AIM me sometime and ill see if he'd be interested in giving you some tips.I need quality equipment, feel free to donate.

Another good point DYohn.Nik

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