100AMP,120AMP, or 150AMP?????

[dsmcurse]

i have the battery in the trunk with a 1gauge wire that goes from the positive post all the way the whole length of the car up to the engine bay where that hot 1awg wire goes into a power distribution block, basically a bus bar with a cover on it. from there i have the stock wires that used to touch the battery post when the batt. was in the engine bay. the starter, the alt, and the fusebox power.

my question is, back in the trunk about 12 inches away from the battery i want (need) a inline fuse. my available options to buy are 100AMP, 120AMP, or 150AMP. i think 100 to small and 150 to big. i know the starter only goes for like 2seconds at a time but i was wondering about load and which size of fuse or breaker other people are using? thanks in advance

 

[vinnio]

I dont have my battery relocated or anything so this may not be exactly correct, BUT

Its my understanding that the starter can take up to 300 amps (possibly more!) during cranking. We do have a small engine, but Im guessing its at least in the 200-250 amp range. So yeah, definitely run a fuse! That would a lot of un protected wire without.

 

[sledge42hammer]

I have 100 on my geo. Half the engine though. Try a breaker instead. That way if it does blow just turn it on again and you wont have to keep buying fuses. Just my .02

 

[krackit]

i don't see a need for a fuse...there wasn't one there to begin with...

 

[JuGs]

Ull need a ANL fuse id suggest a 250 amp. when we did this to my buddys car we tried the 200 amp and still blew it. later on we found out the started was fried(we think it was prior to installing fuse)

 

[DGajre777]

I have a 150 AMP Stinger circuit breaker, no issues with it.

 

[flaatr]

i don't see a need for a fuse...there wasn't one there to begin with...

There wasn't one to begin with because the battery is in the engine bay... when you relocate the battery to the back of the passenger compartment (trunk) you add many risks... if in an accident the main line gets shorted then you will generate a lot of heat in the wire an possibly start a fire or maybe even cause the battery to explode.

A breaker should be placed in the trunk as close to the battery as possible to cut all power to the line feeding the front of the car.

-Raffi

 

[MJBean420]

Fuses are old school. Get a circuit breaker. You wont have to replace fuses ever again.

XScorpion CB200A 200 AMP CIRCUIT BREAKERS - eBay (item 190479849161 end time Jan-12-11 10:04:03 PST)