Big 3 Upgrade
Thread Starter
Le Mans Master
Joined: May 2006
Posts: 6,774
Likes: 361
From: Midland TX
Big 3 Upgrade
I am considering doing this upgrade. I have an Optima Red Top and it has both TOP and SIDE terminals. The stock harness of course connects to the side terminals on the battery, but is it OK to just ADD the 0/1 Gauge Big 3 wires to the TOP TERMINALS IN ADDITION to the stock harness on the sides? Would this cause any problems using ALL 4 TERMINALS?
Drifting
Joined: May 2006
Posts: 1,616
Likes: 1
From: Minnesota
I did mine last year too. One good tip I found here was there is a unused bolt hole at the front of the passenger side head you can use for your engine to frame ground. It's a short run over to the frame and your done with one of your big three. I did 4 gauge myself and saw my volts go from about 14.1 to 14.5.
Melting Slicks
Joined: Apr 2008
Posts: 2,118
Likes: 2
From: Redding CA
I did mine last year too. One good tip I found here was there is a unused bolt hole at the front of the passenger side head you can use for your engine to frame ground. It's a short run over to the frame and your done with one of your big three. I did 4 gauge myself and saw my volts go from about 14.1 to 14.5.
i would reccomend 4 gauge....i did 0 gauge but i have read that it is kinda overkill
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Thread Starter
Le Mans Master
Joined: May 2006
Posts: 6,774
Likes: 361
From: Midland TX
Drifting
Joined: May 2006
Posts: 1,616
Likes: 1
From: Minnesota
Oh and I tried to blow it by cranking the stereo, heater on, wipers going, headlights on and everything else I could reach and it was still ok. I guess it's splitting the load between that and the stock wiring just fine.