just wondering if i sould get the 5 wire or 6 wire and whats the differance??

 

they will all do about the same thing...

such a slight difference with it all once you add some type of kit...

i saw a G35 guy with a 12 wire kit...

 

overkill

 

so basicly there is no much of a differance between them , i mean there has to be something u know... lol , i'm so cluless about this its unbelivable... but yea , thanx for the comments , i'm just wondering i mean i dont care paying exstra i just want to know the difference

 

I have not seen anyone test the addition of a 6th or more wires. I doubt there is much if any differenc. I think some people go with the 6th wire to have a more balanced look to the wires in the engine compartment - IMHO

 

Id be skeptical of the difference of 4gauge vs 8gauge, hell even 10 or 12 gauge. a 12gauge wire can easily handle 120volts, and we are talking about .01volts at best, anyone ever hooked the ground lines to a multimeter to see if there is any thing flowing? it would be measurable right?

 

Yeah, a 12 gauge can handle 120V, but at what current? I'm guessing you comparing the 12awg use in your home with 120V.
The current running thru that is about 1-2 amps max. Your car's alternator runs at 60-100 amps (depending on rpm) and aftermarket ones can run in the thousands.
So there is a difference between 4awg and a 12awg (beside the size). Thicker wire have lower resistance.
V/i=R
120/1 - 2 = 120-60
12(14)/60 - 100 = .2 - .12 (.23 - .14)

Notice the difference in the resistance.

 

Question: What is the original grounding material? Is it the components actually bolted to the frame or is there existing ground wires that are just not up to snuff? If so, what is there guage and how many?

 

They include the negative battery cable and several ground wires of small gauge from the fenders to the engine. Remember large diameter wires do a better job but cost more. Just like gold connectors work better but cost more. Don't you wish they had used stainless steel bolts instead of ugly green painted steel ones? Again they cost more.

Everything in business is a compromise with the accountants. The designers of the 350Z had a vision but a target cost they had to meet. So they had to make choices between performance and cost. Otherwise we would be talking about Enzo not Mr. K.

All IMHO

 

On that note, would it be better to "replace" the existing wires with larger guage or to add a kit with 5 or 6 wires? Does the kit add anything that just replacing the existing wires wouldn't?

 

On most newer cars it is a lot less work to add additional wires. On older cars that had simple braided wired running from point A to point B it is easy to do a replace.