What Gauge(s) for Battery Wires?
#1
![Question](https://www.rx7club.com/images/icons/icon5.gif)
I went to Mazda to get pricing for new battery wires. Thet said they don't have any part # on It. So I want to go out on my own and replace them my self.
To my understanding their are 2 wires coming out of the "+" terminal, both with various gauges. One of them leading to the alternator and the other leading to the starter. On the "-" terminal their is one leading directly to the back of the block, right behind the oil filter assembly. Right?
What gauges are their for these 3 wires? Is their more than these? Finally, Is their anything else that I need to know?
Sometime ago I added an 8 gauge wire from the positive terminal directly to my Alternator with great results. Voltage readings went up 1.5! I beleive with the addition of this wire less strain Is applied to the Electrical System. I want to replace these wires to insure I have no electrical problems that can't be traced back to faulty wires!
To my understanding their are 2 wires coming out of the "+" terminal, both with various gauges. One of them leading to the alternator and the other leading to the starter. On the "-" terminal their is one leading directly to the back of the block, right behind the oil filter assembly. Right?
What gauges are their for these 3 wires? Is their more than these? Finally, Is their anything else that I need to know?
Sometime ago I added an 8 gauge wire from the positive terminal directly to my Alternator with great results. Voltage readings went up 1.5! I beleive with the addition of this wire less strain Is applied to the Electrical System. I want to replace these wires to insure I have no electrical problems that can't be traced back to faulty wires!
#6
Former Moderator. RIP Icemark.
The factory uses 6AWG for the main wires and 10AWG for the alt. I would recommend going up at least one size on each if not two or three.
8 AWG for alt and 4 AWG for battery seems about right.
I always upgrade my ground wires from that battery to the body to 2 AWG on every car I own.
8 AWG for alt and 4 AWG for battery seems about right.
I always upgrade my ground wires from that battery to the body to 2 AWG on every car I own.
Trending Topics
#8
Former Moderator. RIP Icemark.
Originally posted by PlayinW/Wankel
Is there any specific type of wire I should get? The only place in town that sells 2 and 4 gauge wire is an audio store, will that work?
Is there any specific type of wire I should get? The only place in town that sells 2 and 4 gauge wire is an audio store, will that work?
You might also try boat parts stores/shops, if the stereo shop wire is too pricey
#11
Former Moderator. RIP Icemark.
Originally posted by PlayinW/Wankel
What are the advantages of upgrading to a lower gauge wire?
What are the advantages of upgrading to a lower gauge wire?
The heat and current makes the copper inside very brittle and a poor conductor. In addition the more current ran through the wire the hotter it gets. The hotter it gets the more brittle and a poor conductor it becomes. Eventually the wire snaps or burns when it gets bad enough.
And with grounds it is more so important that the are functioning to the best they can for only as much power can be generated and used as can complete the path through the grounds.
So better wire, better conductivity.
Better conductivity, better useage of the alt's output, and less loss through more heat and poor conductivity.
Thread
Thread Starter
Forum
Replies
Last Post
streetlegal?
New Member RX-7 Technical
13
03-17-22 02:46 PM