always a great idea. this is actually the reason I run mechanical fans for incidents such as this. for instance what if the fan itself has a failure and you do not notice? you have then just cooked your motor. an electric in conjunction with a mechanical is a great idea, but I just wouldnt trust solely an electric fan on a car you plan to drive long distances or drive often. IMO leave the stand alone electric fan on the strip.
don't want to start a war on the topic, but its just my .02 and something for everyone to think about.
My Comprehensive 302/5.0 Extreme Budget Build
thunderhead motors 302 @ google search
21 already. life sure goes fast. . .