Quote: Originally Posted by
TeamRSX 
Ya, i think i will be ok with a 60a fuse. I would probably be ok with a 50a fuse, but i am eventually going to be putting in a mono amplifier for my subwoofer. Once i go that direction i will be using around 46a instead of 36a and my mono amplifier doesn't have as much watts as the amp in the car right now.
So, i think i would be ok with using 8awg wire and a 50a fuse, but just to be on the safe side i will upgrade to 4awg and stick with my 60a fuse as you mentioned if i for some reason blow that than i can upgrade the fuse.
I just dont like the idea right now that i have a fuse that is overrated for the wire (8awg 50a max and i'm running 60a). Even though the amount of amps will never exceed 50a according to my calculations its better to be safe. But in case i get more amps for some reason i want to be protected
I would recommend upgrading that 8awg to at least 4awg when you add on that mono amplifier, just to make sure your equipment is getting the power it needs.
Personally, I'd upgrade now, but that's just me. I absolutely refuse to run anything less than 4awg and prefer 1/0. Right now I'm running 2 4 gauge lines to just 2 amps. For my next install, I'll probably be doing 1/0 with a distribution block at the amp/PC rack. Overkill never hurts, especially when you tend to change/upgrade equipment as often as I do
EDIT: And you should NEVER fuse above the max rating of the wire! According to your calculations, your equipment will never exceed 50A, but the fuse is not for the equipment draw, it's for if your equipment shorts out and you start drawing alot of current through the wire, melting the insulation, and starting your car on fire. Change that fuse to the max rating of the wire. You're probably safe now, but what if you get a small problem and starting drawing 58A?