Join Date: Dec 2002
Location: Saint Louis, Missouri
Re: Voltage Drop Question
Besides you upgrading the ground connection with the new cable that you have on order this may help the problem but I wonder too, how are the ends (terminals) attached to the 1/0 wire you have. You could have VD through them. 1/0 is a big cable and what I do on customer's cars is to crimp the terminal tight onto the wire and then use a Mapp gas torch to heat up the terminal and the wire crimped to it and then flow in solder. I'm just a fan of soldering wires and on some terminals you can partially fill the terminal with solder and then after tinning the wire end, heat the terminal end up and then shove the wire into it and after it cools it makes a joint but myself I would rather see the terminal crimped down first to limit how much solder is in there.
Another thing is I wonder if the alternator is charging up the battery enough. I have an adjustable regulator on my car with the battery in the trunk and I can dial it in to where I have 14.4 volts right at the battery terminals. I wonder if you alternator is maybe not putting out enough. When you jumped it with another car you were still using the same wires and ground paths in the car. All that was done was add more available current and voltage to crank over the starter.
1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)
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