Battery in trunk, 4awg to front. Fused 4" from battery with 80A fuse. Was cranking my car tonight and the fuse popped and killed all power. Luckily I had an extra with me, but how the hell did that happen? Is that a sign of starter failure?

 

you check the wire to make sure it hadn't been punctured? Blowing that fuse should be tough.

 

Well your starter takes alot of amps to crank that engine over! Most batteries will push over like 500CCA.. the higher the better in the winter! I would say it would be quite easy to blow a fuse! But I am not a professional... Thats my opinion

 

godamn ie crashed. basically the post said: battery cables new, meant for batteries. good insulation.

whats the stock fuse rating? keep in mind this is 80A going to the front, all im allowing for the engine bay. Should I step it up? Im putting a system in there, but its gonna have its own 4awg line

 

teh starter doesnt draw through that 80amp main fuse, thats just to the rest of the car, the pos cable goes right to the starter, it draws straight from the battery, if you have it blowing that fuse during crank, the ign. switch could be flippy and grounding something inside it that shouldt be or your selonoid wire might be grounded

 

Well yeah the starter HAS to draw from that 80A fuse, its 4" from the battery, so if anything in the engine bay needs power it has to come through that 80A fuse

 

but arent there 2 other red wires going to the pos terminal (starter cylenoid) ?
so unless you moved your battery to the trunk and wired the starter and cylenoid wire directly to your newly ran power wire the starter shouldnt have to draw from that fuse unleess you fused the starter wire also

 

lawl maybe you didnt read the OP. Battery is in the trunk ....

 

yea i didnt lol my bad

 

Did any installations say to even put a fuse in the line?