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The BMW Range
5 Series
E34
e34 engine performance
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<blockquote data-quote="bimmerman" data-source="post: 48817" data-attributes="member: 126"><p>Another reason I can think of why the car is quiter on cool days. During cooler days your crank driven engine fan is mostly off so you don't get that whooshing sound caused by the fan when you accelerate. On hot days it's whoosh-whoosh at every start stop so your car sounds like it's trying very hard and the extra air resistance saps power too. Electric fan conversion anyone? :dunno:</p></blockquote><p></p>
[QUOTE="bimmerman, post: 48817, member: 126"] Another reason I can think of why the car is quiter on cool days. During cooler days your crank driven engine fan is mostly off so you don't get that whooshing sound caused by the fan when you accelerate. On hot days it's whoosh-whoosh at every start stop so your car sounds like it's trying very hard and the extra air resistance saps power too. Electric fan conversion anyone? :dunno: [/QUOTE]
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