View Single Post
  #42 (permalink)  
Old 04-03-2020, 04:07 PM
patrickt's Avatar
patrickt patrickt is offline
Half-Ass Member
Visit my Photo Gallery

 
Join Date: Jun 2005
Cobra Make, Engine: ERA #732, 428FE (447 CID), TKO600, Solid Flat Tappet Cam, Tons of Aluminum
Posts: 22,005
Not Ranked     
Default

Quote:
Originally Posted by fastd View Post
Patrickt,

I’ve done this upgrade on other cars (without ammeters) with the goal of reducing power through the switch AND taking power directly from the battery to the headlights. I am getting a little confused about how to think about the wiring if the power stills comes through the fuse box. The trigger wire still run off of fuses 7 & 8 for my 289fia...is it still ok to take power for the relay from fuse 7 or 8 to power the relay/headlights.
Life might be easier and simpler if I take the ammeter out.
That's just a case of confusing verbiage. We are not running through the fuse box. When someone says "take the power off the fuse box" that doesn't necessarily mean the fused side of one of the fuses, rather it refers to a nice easy convenient feed that is usually half way between the alternator and the battery. If you are staring at the two ERA fuse boxes, the one on the passenger side of the car is the first box. The top fuse of that box, on the passenger side of the fuse, is a direct feed from the alternator (and the fused side of that fuse runs to the fans). If you just tap that passenger side screw, it will always be hot, and it is unfused. So, whatever you run from a tap from that screw must have an inline fuse, or circuit breaker, to protect it. That's all the phrase means.
Reply With Quote