www.bmwrocketscience.com - bmw E31 850ci with big electric fan upgrade.

Description

replaced the belt driven fan with this 18" electric fan. you can hear it's like a hurricane under that hood. first just the fan, then the fan and engine running. all electronics are wired in a box under the duct for stock appearance . you can see two button rivets holding the relay box. fan turns on low and high as demand calls for it ... and keeps running after car shutdown for 2 minutes. this upgrade improved engine power by 8hp to the wheel. and is very quiet. find us at www.bmwrocketscience.com

Keywords

electrical fan, bmw, 850i 850ci, 8 series, performance, racing, motorsport, v12

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