lookin 4 "Big 3 upgrade" pics- - Ford Powerstroke Diesel Forum
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Old 12-08-2012, 03:28 PM
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lookin 4 "Big 3 upgrade" pics-

Was lookin at the pics in the "engine bay's lets see 'em" thread and noticed the extra cables in one of the post. (big 3 upgrade) Was wondering if anybody has a good diagram or some good pics on this for a "how do". Also is the welding cable that was seen in the pic needed or what would you say minimum sizr should be. Thanks 4 your time! J.
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Old 12-08-2012, 03:45 PM
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I googled it and couldn't find much for ford but lots of write ups for Chevy. I am definitely interested also.


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Old 12-08-2012, 07:15 PM
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Also interested
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Old 12-08-2012, 07:17 PM
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It just insures you have adequate grounding and power. The make and model of the vehicle doesn't matter. It's all pretty much the same idea vehicle to vehicle.

The “Big 3” upgrade is a swap or addition to these three cables:

1) Alternator positive cable that runs to the positive terminal of the battery
2) Negative battery cable that runs from the battery to the vehicles chassis
3) Chassis grounding cable that runs to the engine block

Use #1 or welding wire for this job. On our trucks I suggest running one grnd to the engine and one to the frame, then grnd the cab to the engine or the frame.

Last edited by PGreenSVT; 12-08-2012 at 07:20 PM.
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Old 12-08-2012, 07:28 PM
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Quote:
Originally Posted by PGreenSVT View Post
It just insures you have adequate grounding and power. The make and model of the vehicle doesn't matter. It's all pretty much the same idea vehicle to vehicle.

The “Big 3” upgrade is a swap or addition to these three cables:

1) Alternator positive cable that runs to the positive terminal of the battery
2) Negative battery cable that runs from the battery to the vehicles chassis
3) Chassis grounding cable that runs to the engine block

Use #1 or welding wire for this job. On our trucks I suggest running one grnd to the engine and one to the frame, then grnd the cab to the engine or the frame.
Thanks Mitch what do think is a good choice 1/0 welding cable or go even bigger with some 2/0 or is that overkill?


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Old 12-08-2012, 08:55 PM
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1/0 is plenty big
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Old 12-08-2012, 10:19 PM
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What Gary said ^^^
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Old 12-09-2012, 03:21 PM
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Does any one have some pics for this mod a little foggy still. Visuals always help


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Old 12-09-2012, 05:27 PM
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First pic, cable goes from batt positive to alt post. Second pic, batt negative to body, you can see the cable coming from negative post and loops to where i'm pointing. You can forget about frame to motor pic, it's raining out and muddy!!







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Old 12-09-2012, 05:36 PM
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do you have to run the positive from alt to both batteries or just one ? If just one, which one ?
How bout ground ?

Joe
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