BOSS 357

iTrader: (1)

I need one last bit of clarification before I go ahead with my Big Three update.
(89 Formula TPI, all applies to the ALT to BAT + wiring)

For what it's worth, I will be using either 2 or 1 AWG for the battery and 4 awg for the grounds.

First, is it correct that I can run the 2 little wires, that now come from the fusable link, directly off the positive and into their respective weatherpaks WITHOUT a fuse? I've read where they most likely have fusable links down the line.

Second, I want to run a 4 AWG wire from the ALT to BAT + with an inline fuse. I have a 105 amp alternator; my audio setup uses a 4 awg run 15 feet or so and a 100 am fuse. I've read that 4 awg can hold 150 amps max. My guess is that I can use anywhere above 105 and below 150 for a fuse? I'm thinking 110?

92RS_Ttop

iTrader: (3)

Let me just say this first: Granted, I am looking at diagrams for a 92, but I don't think the starting and charging diagrams would be all that different between our cars.

To the first question, you would need to fuse them somehow. Either by leaving the fusible link portion intact or by installing an inline fuse on them. Fusible links can only be located within a certain distance from the battery in order to be effective. Looking at the diagrams, I don't see any indication of fuses or fusible links farther down the line. One appears to go directly to the alternator, and the other goes to the ignition switch.

To the second question, I'm not entirely sure what you're trying to accomplish with this?? The factory wiring should have a wire going from the alternator to the + side of the battery already? I don't believe a fuse is required to go from the alternator to the battery. Looking at the diagrams, the 305 and 350 TPI and the V6 cars apparently do not have any fuse or fusible link on this connection. However, the 305 TBI cars do? It's weird, but it won't hurt anything to have a fuse there. I would keep it close the output of your alternator, 110 sounds fine.

92RS_Ttop

iTrader: (3)

I will be the first to admit that I'm no wiring expert when it comes to connecting the alternator to the battery. Anything else, I would be 100% confident in my answers. With your second question there, you might want to get that double checked, just to be 100% sure. Especially since if I am wrong, it could cause a rather unpleasant engine fire.

BOSS 357

iTrader: (1)

Thanks again, 92.