Does anyone here have any reference website or article that tells you how to DIY grounding of all the electric components ? ? ? ? ? ? ? ?

and does grounding improve the engine performance ? ? ?

Thankss

 

Electrical 101 : "Grounding" (or "earthing for the britons") is setting up a path for voltage to go to the negative terminal on your battery. Voltage is merely a difference of potential. There's no baseline or such thing as 0 volts (until you set one as such). Now, all grounding is, is setting the voltage of all of your metal pieces to the same potential. Basically, referencing the block, trannie, chassis, etc, all to the same voltage. This is done by electrically connecting them with bonding or grounding wire (usually think copper looking stuff, although its also woven stainless). If you didn't bond everything together, you would build up static electricity (lots of electrons or - voltage) in your intake and it would be different from the static electrical charge built up by your pistons, and different from your exhaust, etc etc. By bonding everything together, it distributes all of those built up electrons amongst everything, and thereby equals everything out. When everything is equal, there is no difference of potential and you establish a baseline voltage of 0. Lots of complicated theory.

How it helps you:
Having everything at the same potential prevents electrical power loss. If you have a big static charge in your intake piping, you'll divert current from going to your sensors or radio or whatever to that charge. (I won't explain how it actually works in reverse, just go with it.) Also if for some reason there's a big enough static charge, and it comes in contact with a piece of hardware that has a reasonable positive voltage, you can get arcing, sparking, and ground faults (where lots of current blows out components on its way to that unprotected negative voltage).

The easiest way for you to ground components in your car is to take and drill a hole into your unibody or other chassis part, tap some threads, and run the wire (with a terminal on the end) to that hole, clamping it down with a screw. Same goes for grounding out the block, head, and transmission (which all come with grounding wires from the factory.