Some cars actually come with one on the front and one on the back, as a pusher and puller. I don't know why, I just think they would be better as just pullers. If you're getting a bigger radiator be sure to get a large enough fan. If you live in very hot climate I'd go for a dual fan. I just have one large fan, but like MrNickleye, I have an override switch so I can keep it running whenever I want during hot days. In fact I think I might add another fan. Hot weather sucks. As far as the stock fan, don't worry about it, I guarantee it doesn't come near 2950 cfm. Take the load off your engine. It takes a much smaller load to recharge your battery.
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-1987 5 spd N/A with TEMS: low miles! All stock with the exception of electric fans and an '89 front bumper, Yokohama 225/50/16 with stock rims. It's a mess and in the garage.
-1987 5 spd Turbo with TEMS: miss-matched tires, needs lots of work, but it runs! Project car.
-1988 N/A auto targa: all stock except 18" rims with Falken 265/35/18 in rear and 225/35/18 in front; daily driver.
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