Quote:
Originally Posted by Kurt in NJ
so the compressor takes 70 amps, each condenser fan lets say 10 amps, the evaporator blower 20( original equipment heat/ac blowers are in the range of 30 amps)
so 110 amps,plus say headlights another 15,general charging, ignition another 10
most alternators rated amps are cold, hot available amps will be less, a 150 amp alternator would need a good belt drive probably double row to be able to keep a reasonable belt tension to keep water pump bearings happy
The ad says it doesn’t take power from the engine?? what do they think makes the electric?
a second set of deep cycle batteries charging at home could work, then the factor of additional weight
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The systems I've seen, which are all retrofits and fully electronic, use approximately 70 amps for the complete system. The compressors alone use in the 45 - 60 amp range as I mentioned earlier, depending on the load (ambient temp).
90 amp alternators can handle this and the other systems pulling a draw. 150 amps is recommended if going to electric AC. The air cooled Porsche and VW crowds have been doing this for awhile, and run 150 amp alternators with a single v-belt that is also driving the cooling fan. They do this without issue.
The ebay link previously shown is more of a generic setup. Here's one targeted for 911's, (some that use a single v belt), and quite a bit more expensive.
https://www.classicretrofit.com/en-u...c-911-full-kit