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Thread: Operating Temperature

  1. #1
    Member JUNIOR BUILDER
    Join Date
    Apr 2007
    Location
    West Palm Beach, Florida
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    71

    Operating Temperature

    I just put in a bigger radiator that can cool my engine in the summer.

    355 SBC w/671 blower, street car on pump gas.

    I am running a 180 degree thermostat now with no issues.

    Is there any benefit to running a 195* thermostat? I could probably run a 165* if I wanted to.

    I was thinking the engine would be more efficient hotter if controlled?

    I am also interested in the science behind the logic.

    Thanks, Steve

  2. #2
    Senior Member DYNO OPERATOR
    Join Date
    Apr 2008
    Posts
    496
    COOLER IS BETTER

  3. #3
    Member JUNIOR BUILDER
    Join Date
    Apr 2007
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    Is there any logic to cooler air into a hotter engine making more power?

  4. #4
    Senior Member EXPERT BUILDER
    Join Date
    Dec 2010
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    345
    NO! :lol:

    Cant help myself

  5. #5
    Senior Member RACING JUNKIE curtisreed's Avatar
    Join Date
    Feb 2004
    Location
    KIEFER, OK.
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    1,309
    Quote Originally Posted by ssym
    Is there any logic to cooler air into a hotter engine making more power?
    Cooler air going into the engine will cool whatever fuel you are using allowing more/(denser) fuel into the same space. The cooler air is already denser. This helps to make more power.

    Curtis

  6. #6
    Senior Member EXPERT BUILDER
    Join Date
    Nov 2009
    Posts
    267
    Cooler air into the intake is one thing... cooler water holding block temps down is another... Cold block temps is not better if it is TOO cold... there are many reasons you should have the engine a "proper operating temps"
    Too hot = not good.
    Too cold = not good.
    175 to 210 is acceptable, especially if on alcohol...
    I'm not hatin... I'm just sayin...


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