Quote:

It looks like only 7 hp between the best thermal clutch fan and the electric. I'll stay with my tried and true MP fan kit.



That wasn't the article I was referring to. The test in the linked article was done with a SBC.

I can't find it now of course but I want to say it was Mopar Action or Muscle that did a similar test on a warmed up 440 in a Challenger (I think). They had a chart of the hp/tq numbers which showed the loss increased as the RPM's rose which makes sense. IIRC by 5000 RPM the loss was right at ~20 HP at the rear wheels with a clutch fan vs. an electric.

That being said, if you have a fully working mechanical setup, I wouldn't jump to electric just for the gains but it is a plus IMHO.