Ground location suggestions - photos included

[adulbrich 5,000+ posts]

For every ground you steal off the engine, you have to add one from the engine to the frame.
Your engine is not in itself a grounding point, your basically using it as a terminal block if going to engine then to frame.

For a separated alternator the best way is this;

Alternator is bolted to engine, that's a ground, now add a ground from engine block to frame to account for that. You can ground your battery bank to the frame in the rear, or run yours grounds all the way to the front. Keep in mind, if you run 2 x runs from back bank to your engine, that is another 2 runs you have to go from engine block to frame.

I think everyone in here is talking around each other and is getting confused.

I like one big central grounding location in the rear for the bank. Do big 3 up front. That's my preference.

I don't want to ground my battery bank to the frame. I'd rather just run a deticated ground up to the front.

I don't need to add more engine to frame ground if I'm not grounding more things to the frame.

If I grounded the amp and battery bank to the frame, yes I would need more engine to frame grounds. Since I didn't, I do not.

My battery bank in the back is not connected to any batteries up front

 

[kero48]

You can try it. Grounding to body is how a lot of people do it.

I'll give it shot within the next two days and let ya know how it works. Can't be worse than the original ground point and method.

 

[los33 10+ year member]

I don't want to ground my battery bank to the frame. I'd rather just run a deticated ground up to the front.
I don't need to add more engine to frame ground if I'm not grounding more things to the frame.

If I grounded the amp and battery bank to the frame, yes I would need more engine to frame grounds. Since I didn't, I do not.

My battery bank in the back is not connected to any batteries up front

You have that backwards. You will want to ground your separate battery bank to the frame and not the engine.

Grounding to the engine will need more grounds from engine to frame. Even if running to the front it has to be grounded to the frame.

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[adulbrich 5,000+ posts]

You have that backwards. You will want to ground your separate battery bank to the frame and not the engine.
Grounding to the engine will need more grounds from engine to frame. Even if running to the front it has to be grounded to the frame.

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No. It does not need to be grounded to the frame.

I lave literally ZERO voltage drop full tilt and I am not concerned about grounding it to the frame whatsoever

 

[los33 10+ year member]

No. It does not need to be grounded to the frame.
I lave literally ZERO voltage drop full tilt and I am not concerned about grounding it to the frame whatsoever

As power grows you will notice batteries aren't charging as they are suppose to.

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[adulbrich 5,000+ posts]

As power grows you will notice batteries aren't charging as they are suppose to.
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Pretty sure I'm already running a decent amount of power.....

 

[Eggroll]

No. It does not need to be grounded to the frame.
I lave literally ZERO voltage drop full tilt and I am not concerned about grounding it to the frame whatsoever

Hey bro what's your electrical?

 

[adulbrich 5,000+ posts]

Hey bro what's your electrical?

Stock alt and battery for stock electrical and 4 channel mids/highs amp

370 amp hairpin and five group 49 batteries (400 amp hours total) for my 20k

 

[los33 10+ year member]

Stock alt and battery for stock electrical and 4 channel mids/highs amp
370 amp hairpin and five group 49 batteries (400 amp hours total) for my 20k

900 max amp musical at 12.6v..

Taramps 20k not korean 20k

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[adulbrich 5,000+ posts]

900 max amp musical at 12.6v..Taramps 20k not korean 20k

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Yeah, pretty sure most people on here know that.

How much power are you running? Got enough grounds???

 

[los33 10+ year member]

Yeah, pretty sure most people on here know that.
How much power are you running? Got enough grounds???

Im only doing a sq4500, but on top of 4 alts ill have 8 runs of 1/0 4 power 4 ground each will have another run off the battery to the frame.

I currently have .1 drop of voltage from front battery to back battery.

Thats with only a single alt.

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[adulbrich 5,000+ posts]

Im only doing a sq4500, but on top of 4 alts ill have 8 runs of 1/0 4 power 4 ground each will have another run off the battery to the frame.
I currently have .1 drop of voltage from front battery to back battery.

Thats with only a single alt.

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If you have any voltage drop after 4 alts and only a 4.5k Korean, you're doing something wrong, lol. After you add the other ones, that amp should be able to take some abuse

 

[los33 10+ year member]

If you have any voltage drop after 4 alts and only a 4.5k Korean, you're doing something wrong, lol. After you add the other ones, that amp should be able to take some abuse

That is not voltage drop from amp pull.

Thats voltage drop from wiring two batteries far apart in parallel.

I have near perfect voltage on the batteries in my cab.

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[adulbrich 5,000+ posts]

That is not voltage drop from amp pull.Thats voltage drop from wiring two batteries far apart in parallel.

I have near perfect voltage on the batteries in my cab.

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That's common

 

[los33 10+ year member]

That's common

Not with a bad battery bank setup or bad ground.

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