I am making some minor changes to my car a want to take the opportunity to possibly upgrade the ground to the engine/engine accessories. I already have a Moroso thru panel positive and negative post at the base of the passenger side firewall (both tied directly to the battery). I use them mainly for the inside wiring both postive and grounds with the exception of the starter positive lead to the outside bulkhead. After reading some of the topics here I am thinking I need to create a better ground to the engine and under the hood. I will be making a ground strap from the neg thru connector directly to the engine. My main question is how big of a wire do I need to use just for the accessories (fan, water pump, hobbs switch at the moment)? Will a 10 or 8 gauge wire be enough? It will be seperate from the engine ground but they will all terminate at the thru post. Any suggestions greatly appreciated. BTW I have never had a grounding problem with the current set up (knock on wood).