Hello Everyone,
This is my first post. My brother and I have been working on a resto-mod 67 that has been in the family since new. We have moved the battery to the trunk and we are running a #2 gauge power source wire from the trunk to the front but for some reason the started will not turn. It does "pop out" but doesn't turn. Could the #2 gauge wire be too small for such a distance from the trunk?? Any suggestions??

Thanks in advance!!!

 

I do believe 2G is good according to this chart.

http://www.wiringproducts.com/batter...pacity%20Chart

 

Two gauge is fine.

My '07 Charger's battery was in the trunk, factory, and the cable to the
front wasn't even 2 gauge.

It is most likely, a ground issue.

Where did you fasten the original battery ground cable, after you removed
the terminal? Most people put that cable under a strut tower nut. Then, in
the trunk area, you are going to need a clean ground post. You would have
to solder a big eyelet on to the original negative battery cable, and ground it
under strut tower nut, after the surface was cleaned of any paint and/or rust
under that nut. You may have to weld a clean post to the trunk somewhere.
Then the area has to be paint free, bare metal for the ground to the battery
negative terminal. One of the most common mistakes is, people don't sand
the paint off, under the ground areas. IF you have to drill a hole for a bolt
for the trunk ground, make sure you sand the paint off around the hole.

Hope you also have a place to vent the battery...

There is a little more than just running a main up to the front, to the original
battery positive cable. See this link: http://www.madelectrical.com/catalog/tm-1.shtml

 

Ed, everyone is correct about the 2 gauge wire being sufficient. But, here I go again with my "Old School" over-kill. Two gauge is fine for normal applications. As a golden rule, all race cars that pass through my shop get 0 "welders cable." Yes, I assume you are not running a hot charging system or a 200 HP hit of nitrous. But as 08' Mustang Dude states, no size ground cable is good unless there is proper grounding. Since you relocated the battery to the trunk, most of the time the battery is relocated to the passengers side. This is a general rule and not always adhered to for other reasons. I always double the ground/trunk ground with ground tabs welded to the frame. Also, don't forget to make sure the engine is properly grounded to the frame. Be sure to follow all the instructions 08'MustangDude has outlined. Proper preparation is all important.