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school me on cooling fans

Discussion in 'The Garage' started by Cornfield creations, Feb 26, 2007.

  1. Cornfield creations

    Cornfield creations 1/2 ton status

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    I have the stock clutch fan. It seems to not be pulling enough air through the radiator to keep my new engine cool enough. Would a flex-a-lite straight fan do better with the spacer to put it closer to the radiator?

    What are the pros and cons on a straight fan?

    Would an aux. electric pusher fan help any?
     
  2. buefchris

    buefchris 1/2 ton status GMOTM Winner

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    What type of truck ? Is there a radiator cowling ? Is the clutch fan new? Did you change your axle gear ratio?:dunno:
     
  3. Cornfield creations

    Cornfield creations 1/2 ton status

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    its a 79 k-5, I had a stock 350 in it that always cooled real well. Newer 4 core radiator, new heater core. I just put in a 350 ho, and it runs a little warmer than I'd like. I know when it gets hot outside and running AC its gonna run hot. The clutch fan is older but still has good drag and is tight.

    I was just wondering if a straight fan would draw more CFM through the radiator, and what are the down side to running a straight fan?
     
  4. mr.smartass

    mr.smartass 1 ton status Premium Member

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    If you've got a little spare cash do what I did and slap 2 14" electric fans on it with a temperature switch and call it done... add a toggle switch if you plan on doing water crossings.
     

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