So I've been reading through a few threads about 12v switched sources and I have a quick question. I am installing an electric fan as well as a 3g alternator. Now I have an MSD box and I hooked up the red wire to the old coil wire as indicated by the installation instructions.
Now I know the coil wire has a resistor built in which is fine cause the box draws power from the battery once the 12v ignition source is activated.
My question now is about the alternator and fan. The fan is using a relay so I think I can hook it to the same 12v coil wire because it just needs to be keyed to activate it and then draw power from the battery side of the starter solenoid.
I am also thinking the same holds true for the alternator 12v source that is needed because they recommend using a resistor inline anyways. I read that the original coil wire has a resistor built in so would this be ok to hook up the alternator, fan and MSD box to this wire considering none of them actually are drawing power from it.
Maybe I'm way off track here but it seems all just need to be "switched" on to do their function.
Any light shed on this would be great. Thanks.
Now I know the coil wire has a resistor built in which is fine cause the box draws power from the battery once the 12v ignition source is activated.
My question now is about the alternator and fan. The fan is using a relay so I think I can hook it to the same 12v coil wire because it just needs to be keyed to activate it and then draw power from the battery side of the starter solenoid.
I am also thinking the same holds true for the alternator 12v source that is needed because they recommend using a resistor inline anyways. I read that the original coil wire has a resistor built in so would this be ok to hook up the alternator, fan and MSD box to this wire considering none of them actually are drawing power from it.
Maybe I'm way off track here but it seems all just need to be "switched" on to do their function.
Any light shed on this would be great. Thanks.