Need ground location under seats for new amplifiers

[ORRadtech]

I thought about suggesting nutserts too. But honestly don't think I'd trust them all that much for high current draw situations. I suppose if you cleaned to bare metal and could assure an extremely tight crimp it would be ok. But you're talking some relatively thin sheet metal and that's hard to get a good clamp onto with larger nutserts. I'd really trust a factory bolt hole much more.

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[2020Tang]

I would just clean the metal at one of these bolt hole locations and call it a day.

 

[NGOT8R]

I thought about suggesting nutserts too. But honestly don't think I'd trust them all that much for high current draw situations. I suppose if you cleaned to bare metal and could assure an extremely tight crimp it would be ok. But you're talking some relatively thin sheet metal and that's hard to get a good clamp onto with larger nutserts. I'd really trust a factory bolt hole much more.

I hear you. Whenever possible, I like to use a washer on the backside of the nutsert to allow extra material for the ribs on the nutsert to bite into.

 

[ORRadtech]

I hear you. Whenever possible, I like to use a washer on the backside of the nutsert to allow extra material for the ribs on the nutsert to bite into.

Right, I do too for regular bolts. The thing is he'll be attaching 4ga wire for a high current application. With a washer added you've created a bunch of opportunities for gaps/looseness which has the potential to create a lot of resistance and heat.

Hell, I'm probably overthinking this but I'm bored this morning...

 

[NGOT8R]

Right, I do too for regular bolts. The thing is he'll be attaching 4ga wire for a high current application. With a washer added you've created a bunch of opportunities for gaps/looseness which has the potential to create a lot of resistance and heat.

Hell, I'm probably overthinking this but I'm bored this morning...

Yes, he would definitely need a way to reach the backside and hold the washer flat while crimping the nutsert in place.

Another option would be to drill a hole and have a nut or a ground lug tack welded in place to secure the ground wire to.

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[Doug V]

How about cut away the carpet like I did here to install my launch and shift timers, drill the appropriate size hole, install a nutsert and a flange bolt to attach your amp grounds under each seat? This will provide the shortest and cleanest run for your ground.

I like that. And it keeps the ground length short.

 

[NGOT8R]

I like that. And it keeps the ground length short.

Take some pics when you’re all done and show us how it turned out.

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