if someone could explain how I can get my voltage to stay more stable when I am stopped in drive and parked in idle that would help me alot. right now it drops to ~13~ in drive (like 500~ rpms or so) and it stays steady at 14.0 in park (unless I crank the system and drain it. I already have a HO alternator, and the big three. Just wondering if like a yellow top in the trunk would help stabalize the voltage during these times or not... or if anyone has any input on how to increase my voltage when I am in park and in drive stopped.
where are your amps grounded to? is it grounded to the chasis? i have notice better current when you run a 0 gauge to the back from the neg of the battery. you can then use a ground distribution block so your amps are grounded straight to the battery.
"are you all sayin runnin another 17'ft of 0 wire to my negative batterie it will be better than 2'ft 0 gauge wirred to the chassis?????"
Not IMO, but some people believe otherwise. It depends on the car, and the tests you subscribe to.
I know of one person who's tested chassis resistance that says the average car is equivalent to 4 ga.
I know of 3 or 4 sources that say the average is 1/0-4/0.
Logic says 1/0-4/0 would be accepted.
The problem is the guy whose tests resulted in 4 ga equivalent is an executive at JL audio.
When it comes down to it I don't think you'd get any measurable benefit from running a 1/0 to the battery, but if you do it - let us know what happens.
And FWIW - a 1v fluctuation in D/idle is about normal. The engine's bogged down a little bit - alt's not turning quite as fast - less current, therefore less voltage.
the chasis is only as good as it is grounded up front.. so if you have 8-4ga grounding the chasis up front under the hood, then thats the bottle neck right there, and therefor your entire chasis is 8-4ga...
diffrent in each individual car yes.. bigger wires than 4ga grounded the chasis under the hood. HIGHLY doubt it!
Personally I wouldnt go on what people claimed to have tested. I would just run my own wires, or do my own test. Most likely you will end up running your own wire.
with a HO alternator, its makes a significant difference to ground all Negatives.. Remember current flows negative in DC!
