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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...



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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.



OK lets do a little caculation..
The mechanical fan draws 10 HP, and the alternator driving electric fans draws 8 HP so one loses 2HP..

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



Isn't that the advantage of a clutch fan, no draw when cruisin down the road..
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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.



If one needs 100 Amps than definitely an well-planned upgrade is required..

Just my $0.02...