View Single Post
  #31  
Old 05-05-2015, 09:05 PM
grandville455's Avatar
grandville455 grandville455 is offline
Ultimate Warrior
 
Join Date: Jan 2003
Location: Chippewa Falls,WI 54729
Posts: 10,862
Default

Okay, so I started car and checked voltage at idle its about 14.10 with the Optima Battery? My fans are wired so both fans are tied together as well as both wires from each relay to control them, the voltage drops to 13.50-13.60 when fans are on, at idle, it may be less with more rpm? Anyway I was right the main cable comes from disconnect and goes to that central post, then my big starter cable goes there as well as both #30 wires for my relays as well as other wires for my bump starter relay etc. Each relay is fused with a 20 amp fuse. I don't think a 1/2 volt drop is that bad IMO? Although it could be a lot more when I first turn them on, I'll have to have someone turn them on while I monitor battery with meter to see how low it spikes it.
Attached Thumbnails
Click image for larger version

Name:	main batt post.jpg
Views:	57
Size:	123.5 KB
ID:	396961   Click image for larger version

Name:	fan relays-1.jpg
Views:	53
Size:	67.5 KB
ID:	396962  

__________________
Darby
74 Grandville 2Dr 455 c.i 4550#
2011 1.60 60 ft,[email protected]@117.74


2017, 74 firebird -3600 lbs (all bests) 1.33 60 ft, [email protected] [email protected]
M/T 275/60 ET SS Drag Radial

2024(Pontiac 505) 1.25 60 ft, [email protected], [email protected].... 275/60 Radial Pro's