Metallargy said:
It's not the cleanest install, but it's certainly not a fire hazard.
Cars are massed produced ... making grounds shorter & less plentiful saves a ****load of money in the end. Grounding kits have been dynoed to improve horsepower on new cars ('02 & '03 models). IIRC, it was primarily in the high ends of the powerband.
There's plenty of room for improvement from the get go on these cars ... that includes the stock grounds.
Yes there is improvement for THE STOCK grounds, upgrading to a thicker, higher quality wire ... is a gain
But running grounds long distance hinder you. Everyone things of electricity flow as conventional current, convential current states that electrons flow from POSITVE to NEGATIVE.
In reality, electrons actually flow From NEGATIVE to POSITIVE,I can get down into the science of it, of how the valence electrons of an atom go from the outer ring of one atom to the next, but that hopefully is not needed.
Making longer grounds are doing nothing, and adding grounds definatly are not doing nothing. Electricity flows the path of LEAST resistance. A shorter peice of wire has less resistance, so most of the current in the entire vehicle is all within the shortest ground from the battery. all those long cables from the distro point to the distributer ect. prolly have little to no current flowing in them.
The manufacturer of the vehicle will have a satisfactory ground system for electrical demands of the car. Adding more horsepower is not an increase in demand to the electrical system. Adding stereos, hydraulics and other big electrical demands would benifit from this upgrade, had it been done properly. Im not bashing on the fellow that did this, he obviously put alot of time and heart into it. Here are my recomendations:
- Sand all paint at ground connections, like Bluemotyl said
- Do NOT run those long cables to one point. instead ground the motor to the chasis of the vehicle with the shortest possible wire, where you make connections at the chassis be sure to sand all Paint off
- 4-guage wire can be tricky to crimp properly, and under vibrations, and improper crimp can and will come lose. Make sure you use a 4-gauge crimping tool, (most audio shops will have these)
I managed a car Stereo shop for a couple of years, and have done plenty of satisfactory work, im also in the middle of Electrical Engineering school, Take my advice, I have personal experience with this