- Aug 4, 2006
- Wichita, KS
- Matt Gonitzke
An alternator would not use any more HP than a generator to charge the battery. Might actually use less. As for starting you will have to figure out some other way to start the engine because an alternator will not work as a starter. You might be able (by rewiring) to use the S/G to start and by mounting the alternator on the other side of the engine and having the belt go around three pulleys. Probably have a hard time dealing with belt slippage.
Or...just fix the problem? OP has his regulator wired wrong, and may have some previous owner mods to correct. All these silly kludges and workarounds are more work than just fixing what is there, and not necessary. The original starting and charging system works just fine. Parts may need to be replaced every few decades though.