Quote: I have had great success running a rear battery and using the cage for a ground for the most part. I ground the heads AND block to the frame, use two 3/8 bolts welded to the frame, one for the electronics and one for the starter circuit. My question is, for my street dart there is no cage, and I am moving the battery to the back. I am looking for a good way to ground the battery and thought that the same system would work, provided the ground connections are big enough (bolt welded all around the head?)to not create resistance at those points. I would drill a hole in the floor at the subframe area and weld it to the sub. The car has frame connectors. Input?
IMO, the way you suggested is Fine and maybe overkill.
IMO, where people go wrong is when they bolt a battery end against a painted surface#1 Number#2, they don't make sure they have good grounds from the engine to the body.
IMO, the unibody works fine as a ground circuit as long as every ground connection is clean and solid.
That's where the problem lies with some that have had problems. Bolt the neg to a painted surface and don't bother to check the quality of the engine ground to the body. Problems!!
I run two separate neg grounds to the engine from the body. I run the bat neg to a quality ground to the factory multi welded trunk brace. Never a problem. Greg, your methods will work fine.
