Can anyone help me find a good grounding spot?

[ChaseinBass]

When in doubt run ground back up to battery for best possible ground //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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[Wellyboy]

I'm at 12.9v when car is off (after terminal discharge) 14.9 when running. Try and hit these numbers. I'v also just installed the big 3 aswell so these numbers are being helped. Between 14.2 and 14.9 at full volume without distortion. But this is just a guild target for you to try and hit.

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[BOOMINGRANDPA 5,000+ posts]

When in doubt run ground back up to battery for best possible ground //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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hi jacking thread.. i just tested my voltage at amp over 12.6 just batt., over 14.6v at amp at idle.. i only have old small 4ga wire no big 3 is it normal to be that good or u think my cheap volt meter just reads to high?, also if it is that good think i could run at 1 ohm without big3?

 

[wew lad 5,000+ posts]

hi jacking thread.. i just tested my voltage at amp over 12.6 just batt., over 14.6v at amp at idle.. i only have old small 4ga wire no big 3 is it normal to be that good or u think my cheap volt meter just reads to high?, also if it is that good think i could run at 1 ohm without big3?

i have no idea what you're saying, be more clear about what voltage you're getting under what condition and ill give you a recommendation

if you're over 1kw rms you need the big 3, possibly 0 gauge wiring, period

 

[BOOMINGRANDPA 5,000+ posts]

i have no idea what you're saying, be more clear about what voltage you're getting under what condition and ill give you a recommendation
if you're over 1kw rms you need the big 3, possibly 0 gauge wiring, period

oh crap i meant to say bassin' hard on loudest deepest rebassed track i ever play i had over 14.6v at amp at idle.. i'm sure it'll drop 1v a while driving and supercharger kicks in and the abs brake and power steering and all.. yeah it would be about 1100rm @1 ohm, i know i need all that just don't wanta do big 3, battery in a difficult place

 

[Popwarhomie 5,000+ posts]

Those cars have always had higher voltages stock.

 

[ekah]

When in doubt run ground back up to battery for best possible ground //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

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Thought ground should be like 3 feet max? If it did this would I have a distribution block from both amps then run back to battery ground?
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[wew lad 5,000+ posts]

oh crap i meant to say bassin' hard on loudest deepest rebassed track i ever play i had over 14.6v at amp at idle.. i'm sure it'll drop 1v a while driving and supercharger kicks in and the abs brake and power steering and all.. yeah it would be about 1100rm @1 ohm, i know i need all that just don't wanta do big 3, battery in a difficult place

over 14.6 at idle at the amplifier terminals? or at the alternator? seems high but it could be. i figured youd drop a volt or two

 

[BOOMINGRANDPA 5,000+ posts]

over 14.6 at idle at the amplifier terminals? or at the alternator? seems high but it could be. i figured youd drop a volt or two

at amp thats what i'm saying.. i think mine drops when i drive cause s charger takes some power to spin and brakes etc. i have agm batt but still on small wire sounds 1v to high.. i may borrow a meter and test it with another one., have to get wife to drive car while i'm in back seat to test it on road and we never go anywhere together..

 

[ChaseinBass]

Thought ground should be like 3 feet max? If it did this would I have a distribution block from both amps then run back to battery ground?
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Less resistance in copper wire than a steel car frame so its a better ground. In fact best ground is stright to alt case and a lot of HO alts have lugs on the cases to run your ground too - Mike Singer told me on average its good for 30 more amps than grounding through the frame. I have two of my 270 alts grounded to the frame and added ground studs to them while I have them out doing repairs since I killed them and going to run 0 gauge from neg battery buss bars straight to alts and see if I get any more amperage.

 

[Papermaker85 5,000+ posts]

Find where the frame touches the body where the hatch is and use a long self tapper for a ground
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never use self tapping bolts. its illegal in practice actually.

 

[trumpet 5,000+ posts]

never use self tapping bolts. its illegal in practice actually.

Metra Online

Metra Online

 

[Papermaker85 5,000+ posts]

Metra Online

Metra Online

They loosen under vibration.

https://jadelearning.com/jadecc/courses/UNIVERSAL/NEC05.php?imDif=2191.0

After 15 years of electrical I'm pretty much a master electrician even though I don't have my Master's license which is basically a journeyman's license which I do have an $10,000 in the bank and another testing on the business Theory section which is total ********.

I highly recommend drill and tap and use some type of locking washer.

 

[Papermaker85 5,000+ posts]

And if you do decide to use this with a lock washer you need a minimum of three threads. Another words drilling into the body a stupid idea.

 

[trumpet 5,000+ posts]

They loosen under vibration.https://jadelearning.com/jadecc/courses/UNIVERSAL/NEC05.php?imDif=2191.0

After 15 years of electrical I'm pretty much a master electrician even though I don't have my Master's license which is basically a journeyman's license which I do have an $10,000 in the bank and another testing on the business Theory section which is total ********.

I highly recommend drill and tap and use some type of locking washer.

Of course, always use a locking washer with a bolt. The kit which the bolts come from is Positiv Ground, which I can no longer find online except on Metra's site. Looks like they dominate this distribution and rebranded it.