big 3 question

[quins90lac 10+ year member]

ok i know you do the pos on the alt to the pos on the bat and neg to frame and engine to frame . but should i go ahead and put another ground on the alt ground and ground it to the frame

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[jrwalte 10+ year member]

If the alt has it's own ground on the case then yes, upgrade that one and skip the engine block to chassis if you want to save wire. Some systems will benefit from alt - to bat -, too. But this wouldn't need to be considered unless you're running 1500+ RMS at least. Below that and the resistance difference is too minimal to gain any benefit with the amperage you'd be pulling.

 

[thegreatestpenn 5,000+ posts]

grounding the engine and grounding the alt are essentially the same thing so take your pick as to which you want to ground. Its usually harder to ground the Alt compared to the engine that's why people ground the engine

 

[99grandprixGT 5,000+ posts]

ya it was easier for me to just ground a different engine bolt. so what ever is easier.

 

[quins90lac 10+ year member]

yeah never mind i just took another look at it and it looks like its grounded with a really beffey peace of steal to the engine block