Broke EF

OK, we relocated the battery to the back of the car this year. When we got everything together we tried to start the car and it just clicked. No big deal, probably just low on juice. Charged it up overnight tried again and the same thing. So then we thought the battery we had wasn't up to the task. Got a new big battery, same thing. Then we thought the starter was bad even though it was somewhat new. Got a new starter and still the same. The battery is wired with two stinger 4ga wires from the battery to the front, and the same down to the starter. In reality a single 4ga should handle the load, but we beefed it up just to be sure.

The starter seems to stay engaged, and when it is that is when we have the problem. If it is not it cranks and starts just fine. If we put a booster pack up front it fires right away. I cant see the wire not being enough, the starter is new, the battery is new, and when it does work it cranks strong and fires right up. What the hell can it be?! Do we need to space the starter down some? Lets see what everyone thinks.

Thanks,
Sean

P.S. This is a lower compression (370ci) turbo motor.