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    Precog's Avatar
    Precog Posts: 1, Reputation: 1
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    #1

    Oct 25, 2007, 06:54 AM
    Calculating CFM using only amp information
    I am trying to calculate the airflow through a fan, but the only information I have available now is the amps coming off the fan. What other info do I need to do this? Any help would be great!
    dj_acidstorm's Avatar
    dj_acidstorm Posts: 1, Reputation: 1
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    #2

    Aug 8, 2008, 05:30 PM
    12v 4.5 amp 250cfm
    12v 7 amp 300cfm +

    FROM DAYTONA ! FLORIDA !

    12 VDC race car brake cooling blower



    Item is brand new from Detmar Company

    Size is 4 inch inlet / output O.D.

    ( we also offer a 3 inch model on eBay )

    4.5 amp rated, CFM 250 / DetMar

    12VDC

    total size is 4 inch dia x 5 3/4 inch length

    mounting bracket built in

    strong electrical motor

    Weatherized marine envoirment rated !

    We have been supplying these to Euro race cars for over 7 years ! Across Europe

    other customers include land speed record cars !

    stock cars / test cars / drag cars

    In-Line Bilge air blower. This blower produces 300+ CFM and is rated for 7-Amps, 12 volts.

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