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Incredible...
Nobody has mentioned the HP drop when the alternator kicks in to drive those (2) electric fans..
Electric fans can draw up to 35 Amps, while many OE Mopar alternators were only rated < 50 Amps...

Just my $0.02...




HP drop was measured and factored into the dyno tests. HP drop is much less than that of a mechanical fan but yes, there is an additional load placed on the alternator from the electric fan. After all, nothing is free.

That being said an electric fan can cut off entirely when it's not needed (ZERO loss) unlike a mechanical fan.

As I already mentioned, adding electric fans will most likely necessitate upgrades to the charging circuit or you will create more problems. As for my car, I went to a 100 amp alternator and I don't have discharge unless I am idling in gear/lights on/AC on/hi blower/fans on @ the same time. This all goes back to the "well-planned" part I talked about.




Shun him SHUN HIM before he makes enough sense to convert you.


1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....