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Old school 17" grounding rule


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Posted

Back in the day the rule was : your ground wire should always be 17" or less on an amp. For the most part I have seen that rule thrown out the window for second battery grounds and frame grounds. My question is WHY???

Posted

My thoughts are that the rule still holds. True as " the shorter and fatter your grounds are, the better off you are."

Depending on the application, when forced to chose, people will run a longer ground if that means more amperage capabilities as opposed to what they can get away with by sticking to the foot and a half rule.

Posted

Same 18" rule when it comes to distance away from a BATT or AMP to fuse/break it. It has never done me wrong. Although I have always ran runs of POS & NEG front to back in all of my builds.

Oh, well.

Zeke

'14

2003 Chevy Monte Carlo SS

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Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

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Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

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Posted

Well I am gonna have to do, + to battery back and ALL grounds to frame. some grounds might hit 30"

Posted

Practicality for one. To get a PROPER ground you need frame or battery bank... most peoples banks or frames arent 18" or less away.....

People who get 18" grounds are usually grounding to the body.

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Posted

Practicality for one. To get a PROPER ground you need frame or battery bank... most peoples banks or frames arent 18" or less away.....

People who get 18" grounds are usually grounding to the body.

You're absolutely right, ... & they usually have problems, no matter how well they prep the "panel" ... That is part of the reason I have always ran front to back GNDs.

Zeke

'14

2003 Chevy Monte Carlo SS

MONTEside00030001.jpg

Vehicle Details & Mod List: http://www.stevemeadedesigns.com/board/garage/vehicle/1703-chevrolet-monte-carlo-ss/

Audio Build Log: http://www.stevemeadedesigns.com/board/topic/143276-2003-chevy-monte-carlo-ss-audio-build-ib-build

Pioneer FH-P8000BT

Infinity Kappa Perfect 6.1

Fi IB3 (Two 12", 2-ohm SVC)

RF T400-2 & T500-1bdCP

MechMan S Series 240A

XS Power D3400 & D975

311-vector-logo_zps0d152f73.png sutliffSig_zpsb1df26dd.png

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