Quote:
Originally Posted by 71 delta88guy
Auto manufacturers have not switched to electric fans for the fun of it. They want to squeez every tenth of a mpg they can from their cars. After you get up to 15 miles per hour a fan is not needed-as long as the cooling system is working properly.I really can't understand the posts in favor of a engine driven fan.My 79 f100 with a 5.0 from a 90 gt mustang had a electric fan. It was on about 9 times in 2 1/2 years. All were in traffic for extended periods of time.
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As noted above, it's hard to run an engine driven fan on a transversely mounted engine. Even on north-south engines, there are other considerations. My late model truck still has an engine-driven fan with a monster clutch. The clutch allows the fan to freewheel when not needed, same as an electric. Other RWD cars may have engine compartment length constraints, which mandate the use of an electric fan in front of the radiator. The design of a car is a compromise.
Again, I'm not saying the there's anything wrong with an electric. I'll just stick with a 7 blade mechanical and a clutch on my big block, thanks all the same.