Just an FYI.....When I had my 2002 toyota tacoma I dyno'd it with and without the factory belt driven fan and saw a 7-8whp increase which was right at 10hp at the crank without the fan.....The power differential increased with rpms so it has a linear effect.....This means that when I was cruising at 60mph and 2k rpms I was saving approx 3whp.
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