Uhhhhhhh.....that's a little too technical for me. Can you dumb it down a little? ThanksFuses good. Melting bad.
Mike
Original protection is between starter stud and bulkhead to protect from any short coming after the bulkhead. Anything on car is from that starting point.
Any protection between batt and the starter relay will require a fuse link big enough to handle the starter motor solenoid ( which is not low ). This would avoid smaller loads shorts what would take LONGER time to burnt for the fuse link and will make a bigger damage where the short happened.
Not to mention the size of the fuse required for the starter motor wire itself if you are thinking on THAT wire.
Now you know why is there.