nbs cable upgrade

[oleshifty]

Since I've installed my UD pulley, I've had a problem with voltage spiking at idle. (especially with stereo or KCs on)

I upgraded to a 145 amp alternator, and already have a redtop optima. I'm going to upgrade the wiring tomorrow, and was wondering the best way to do it.

Should I run a new cable from alternator straight to the battery (I would use the unused top post on the optima) or to the red-plastic covered auxiliary post?

Are there any other cables I should upgrade? (ground, other power wires)


pics would be helpful of setups...THANKS!

[Frenchy]

search "The Big 3"

[oleshifty]

tried...search won't let me. Couldn't find any threads.

[WARLOCK]

Search on google. The big three is on every forum

[oleshifty]

I was more curious what kind of cable. Autozone has universal eyelet cables that are 4 gauge, wasn't sure if that was big enough. Wasn't sure if alt to red box or alt to battery is better.

[WARLOCK]

Mine is alt to batt. Just do he big three upgrade. I used 4 awg but some people use 0 awg and i think george used welding cable.

[oleshifty]

ran 2 gauge from alt to + on battery, and the ground on the alt to the - on the battery.

Did not help AT ALL. My electric fans still drop the gauge to around 10 volts for 5-6 seconds, and it bounces between 12-14 with beats of my subs (running 2 10" kenwoods with a 750 watt profile amp, shouldn't pull THAT much)

I don't see where the ground cable goes to the frame...only cable I see is the thin braided strap bolted to the firewall.

[gTeran1]

Run a 0 awg from your + to the little red box. Then 0 awg from - to your block. And then another 0 awg - to your chasis. Worked for me

[WARLOCK]

Do you have a relay on your fans. Mine id similar things until I wired a relay in.

[WARLOCK]

Also do you have a capacitor?