falcon_master
Well-known member
Hello everyone I’m writing today to get you opinion on some wiring schemes. So I need to be able to power my pertronix ignition and electronic fuel pump. I was thinking to do this I have 3 ways
1.
Wire goes from battery to 20 amp toggle switch, toggle switch powers relay which then goes to fuse block then to ignition and fuel pump (probably safest way to do it)
2.
Wire goes from battery to big 50 amp toggle switch ten directly from switch to ignition and fuel pump
3.
Wire goes from “on” post on ignition switch to relay then from relay directly to fuel pump and ignition (can add fuse block to after the relay if you think I should)
4. Wire goes from battery to toggle switch then to fuse block then to ign. And pump
Now for all these with a relay I was thinking using a 40 amp relay maybe 30 amp but I’d rather go higher than necessary just for peace of mind. Also I don’t know which terminal is the “on” post on the ignition switch also I don’t pull to much voltage through the switch (although it’s only powering a 40 amp relay). I like option 2 because it’s easiest but it’s also least safe if something shorts out. Options 1 and 2 also have added benefit of being anti theft because you have to flick switch for vehicle to run
1.
Wire goes from battery to 20 amp toggle switch, toggle switch powers relay which then goes to fuse block then to ignition and fuel pump (probably safest way to do it)
2.
Wire goes from battery to big 50 amp toggle switch ten directly from switch to ignition and fuel pump
3.
Wire goes from “on” post on ignition switch to relay then from relay directly to fuel pump and ignition (can add fuse block to after the relay if you think I should)
4. Wire goes from battery to toggle switch then to fuse block then to ign. And pump
Now for all these with a relay I was thinking using a 40 amp relay maybe 30 amp but I’d rather go higher than necessary just for peace of mind. Also I don’t know which terminal is the “on” post on the ignition switch also I don’t pull to much voltage through the switch (although it’s only powering a 40 amp relay). I like option 2 because it’s easiest but it’s also least safe if something shorts out. Options 1 and 2 also have added benefit of being anti theft because you have to flick switch for vehicle to run