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Posted by talon187, Apr 13, 2008
Newbie Forum - Beginner/newbie/general DSM modification questions. First mods, how to run 10's when you haven't run 12's yet, any tech question that doesn't fit in another tech forum.
I ran a 2 AWG from the block to the fuel pump area ground, then to a ground a foot from the battery, then connected it to the battery.
I dont think I was descriptive enough.
I have 3 major grounds throughout the car, soon to be 4 (one by the ECU).
I have a lead from the battery then bolted to the frame. (Main battery ground - about 12" long) Then I ran a lead from that same ground up to the passenger side by the fuel pump. Then I ran the last lead from that same spot on the passenger side up to the engine bay and bolted it to the block. It essentially connects all the grounds from the block to the battery.
Our unibody's are not good conductors, its beyond me why people just run the ground to the sheetmetal in the rear.
Proper electrical is so important, your not wiring up a trailer hitch, your wiring up a complex EMS system.
I also grounded mine in the same place and have had no problems
first pic is of a breaker box that is for the + side going to the starter and to battery
And the second pic is where i have my ground
that sounds like an excellent grounding setup. i thought you were saying you just ran your ground all the way back to the front. that would be bad.
btw, as for grounding through the sheetmetal in the rear. it was stated above that shouldn't be done, the electrical system is too sensitive. i worked at a car audio shop for a couple of years while i was in college and we did a lot of battery relocations for people wanting a second battery mainly. anyways, i always installed the ground cable through the rear floor, into the sheetmetal. as many of them as i did i never had one complaint later. those systems must have been a little less sensitive. i just always found that was the easiest and a very effective way of grounding a battery in the rear of a car.
That is the reason for grounding at the child seat bracket mount. This is actually into the subframe and not just the sheet metal. As long as mine has been grounded this way(3-4yrs), I have never had a glitch, issue, or slow starts.
i agree 100%, that would be an excellent spot to ground in a 1G. but a 2G doesn't have that option. and if you stretch all the way to the strut tower in a 2G you're stretching too many feet to be ideal.
Sorry, my bad. I forgot, 1g vs 2g.