i cant find a spot for my 8 gauge wire to run trew in my fire wall can i get some help or advice??

 

drill a hole above the brake pedal, in between the booster and strut tower hole. that's what i had to do . just make sure you wire loom it so it doesnt short out

 

or use a gromet

 

I managed to get mine through a hole on the left side of the car, i just stretched out a coat hanger, and pushed it it slowly with someone looking inside for where it came out. Then i taped the 8 gauge cable to the end of the hanger and pulled it through..
The hole is where one of the main looms goes through the firewall, behing the strut, its quite a large hole, takes a bit of playing to get it through though.

Hope thats not too long or confusing

 

what kind of drill bit should i use

 

a metal one! , j/k, make sure you go from small to large, progressively making the hole bigger or else youll snap the bit

 

make a small pilot hole with a Metal drill bit and then switch bits to a bigger bit and keep drilling the hole till u find the rite size to get the 8 guage wire threw, people told me after in done silicon the hole closed, still havent done it but frankly i dont think its needed.

 

crikey!, hope you got a fuse in there then! otherwise your battery is gonna make one hell of a mess under there when the wires shielding is eventually worn through!