Originally Posted by
stevieturbo
35mm^2 welding cable is more than enough for the starter on any vehicle.
Smaller engines like Cossie etc, 25mm^2 would be fine
And again, the alrge cable is primarily to handle starting current only. Once the engine is running, ALL vehicle power is coming from the alternator anyway. If it wasnt, your battery would be discharging.
I agree...but welding cable in my experience is terrible to work with compared to proper audio cables from the likes of Knu Konceptz and Sky High cables. 35mm welding cable is also not a proper 2AWG (2g) size....when we compared 70mm welding cable, it was more inline with 50mm2 (0g) true gauge power cable from the manufacturers above.
Welding cable will work yes, but im not a fan of it, its not the best to work with.
With the audio cables we usually use, its ALOT easier to get into tight corners and the sheathing is alot more automotive friendly.
Using a true gauge cable in OFC, 4g will probably be ok, but over that distance of a few meters, I would say use 35mm2 (2g)...but 2g is car audio applications isnt stocked by many people, hence the reason for using 0g.
My Previa ran 20 XS Power 14v batteries in the back and 3 300amp alternators...power cable running front to back to run the vehicle was 0g OFC true gauge (5600 or something strands).
Knu Konceptz and Sky High 0g cable is able to handle 300amps of current over 5m...shorter runs will obviously handle more. 4g KK or Sky High will be able to handle approx 175amps (both OFC cable)