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alternators
Kevin
The existing system is fine. You can get 38X2 amps without a problem. The 400 regulators work and there is a 337 out from CPA if you are a member.
There is nothing wrong adding 20 amp circuit. the DC compressors (air conditioning) used to draw in the order of 50 amps.
What GMAS was saying is the couplers were never designed for much beyond the standard alternators. You are loading the couplings down by adding larger alternors.
Again, you can get alternators that work off the accessory drive and not thru the couplings but it is not really worth the additional expense plus you need the engine adapters.
Make sure all connections are good. Get a good DC ammeter and shunt on both alternators and set the system up properly. I havent touched mine in two years once I replaced all diodes, caps and carefully set things up
fyi
bob
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