Hey guys currently in the process of starting the big three.

 

I've got my battery negative to chassis** done and my alternator positive to battery positive done. I'm still confused on the grounding.

 

1) Should I go from engine to battery negative and from frame to battery negative?

2) Should I go from engine to frame and then from that same frame spot to the battery negative?

3) Should I go from engine to the same chassis ground that is mentioned above**? And not ground the frame in the upgrade process?

 

Any other suggestions??

1 or 2 is fine, you can either run all your grounds to your batt. Then from batt to frame. Or you can run all your grounds directly to the frame. Whichever is easier.

1 or 2 is fine, you can either run all your grounds to your batt. Then from batt to frame. Or you can run all your grounds directly to the frame. Whichever is easier.

 

Well the chassis goes to battery negative so might as well make the frame and engine go to battery negative.

You seem to be using frame and chassis as two different things.When you say chassis, are you referring to body panels? You always want to use the frame, not body panels for grounding. It's also best to leave any factory grounding in place and just add to it. Don't remove if you can help it, they put things in place for a reason.

You seem to be using frame and chassis as two different things.When you say chassis, are you referring to body panels? You always want to use the frame, not body panels for grounding. It's also best to leave any factory grounding in place and just add to it. Don't remove if you can help it, they put things in place for a reason.

 

Well I was under the impression the chassis is what sits on the frame. This guide shows an identical engine bay. http://www.f150online.com/forums/4284991-post19.html I've already done the green one. I just don't know whether to ground the engine to the frame and then the frame to the battery negative as shown in the above link or just run a frame ground AND engine ground straight to the battery negative.

 

I plan on grounding my sundown amp underneath my panels in the rear of my truck. Right under neath the "step panel" shown in this photo http://i.imgur.com/wK8Sajz.jpg and I will sand away the paint.

 

Edit: I'm not touching the factory wiring at all.

Edited August 15, 201411 yr by Syphlyn

If you will be using the saz 2000 mentioned in your other post I would run battery negative to frame, engine ground to frame, and ground the amp to frame if at all possible. As long as frame, engine, and battery negative are all connected together you can connect however you want. If it were me, I wouldn't want 2k watts running through the chassis/body. It would probably work, just might have voltage issues depending on how well grounded it all is.

If you will be using the saz 2000 mentioned in your other post I would run battery negative to frame, engine ground to frame, and ground the amp to frame if at all possible. As long as frame, engine, and battery negative are all connected together you can connect however you want. If it were me, I wouldn't want 2k watts running through the chassis/body. It would probably work, just might have voltage issues depending on how well grounded it all is.

 

So have it like this? http://i232.photobucket.com/albums/ee30/mblouir/Frame.jpg with the blue wire going to battery negative? I'm just cautious because that would be the engine ground also goes through the frame ground wire, which would be fine right?

 

Hmm not sure how to ground to the frame lol. It's in the back of my extended cab truck. What's the longest the amp ground should be? 1 foot?

Also my truck has extremely low kms and the original owner had the whole underside of the frame/truck sprayed with that black tar stuff, I'd have to sand a spot of it off I'm guessing to get a proper ground to the frame.

This is how I did my car!

 

I just redid my grounds under the hood. I left all stock wiring going to my battery alone. I added two grounds with 1/0 wire to my battery: one going to a bolt on the alternator/engine block, the other wire going to the frame where my radiator support bolt is located. Frame ground helped to smoothen out the car when I start it up.

I only replaced one stock wire under my hood and thats because my car is a 1997 and the wire was brittle, it was on the opposite side of the engine from the battery. The wire was a ground going from my engine block to my strut bolt. At first i replaced it with two 4 gauge wires with ok results, today i replaced it with 1/0 wire.

Edited August 15, 201411 yr by jay-cee