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Csf radiator

Discussion in '2nd Gen. Tacomas (2005-2015)' started by MACKT28, Jun 26, 2022.

  1. Jun 26, 2022 at 12:43 PM
    #1
    MACKT28

    MACKT28 [OP] Well-Known Member

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    Heretic Ditch lights Toyo Open Countrys AT2 HI VIS OVERLAND RTT
    Finally got my CSF radiator and was wondering on thermostats I have heard in order to get those lower Temps upgrading the thermostat is a must and was wondering if anyone has done this by chance. I looked at the ones that URD offers but over 100$ for a thermostat kit seems a little steep. Any suggestions of other places that sell them possibly Amazon by chance open to all suggestions.
     
  2. Jun 26, 2022 at 1:18 PM
    #2
    Chuy

    Chuy Well-Known Member

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    For daily drivers, coolant temperature below the OEM specification is not recommended.
    • Most engine wear occurs when the engine is cold.
      • Bearings, rings, and other parts are not fully expanded.
      • These “loose” parts move around and wear faster.
    • Optimum fuel burn occurs at higher temperatures.
      • Lower temps can cause some fuel not to burn all the way.
      • This will reduce power and fuel economy.
    • OEM computers ignore the O2 sensor until the engine reaches operating temperature.
      • No “self-tuning” occurs at lower temperatures.
      • Long warm-up times will cause the “Check Engine” light to come on.
    https://help.summitracing.com/app/answers/detail/a_id/5284/~/should-i-run-a-colder-thermostat?

    You can get a performance thermostat for better durability and flow control.
    https://www.motortrend.com/reviews/1308-low-temp-thermostats/amp/
     
  3. Jun 26, 2022 at 1:24 PM
    #3
    Jimmyh

    Jimmyh Well-Known Member

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    This ^^^^

    The engine was designed to operate at an optimal temperature and is tuned for that temp.
     
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  4. Jun 26, 2022 at 2:11 PM
    #4
    Dm93

    Dm93 Test Don't Guess

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    Agreed, it's not like Toyota runs their engines boiling hot like some manufacturers anyway. My truck typically runs in the 180-200F range stock even when it's 100+ out.
    The ability of the radiator to dissapate heat is the largest factor in engine cooling, the thermostats job is to keep the engine above a minimum temperature for effeciency and longevity.

    If you are having overheating problems putting a cooler thermostat in is only going to mask it at best, it won't solve it.

    All lowering the thermostat opening temperature will do is lower the mimimum operating temperature of the engine which is not always a good thing.
     
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  5. Jun 26, 2022 at 6:52 PM
    #5
    MACKT28

    MACKT28 [OP] Well-Known Member

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    Okay that answers my question on that subject so I just need to replace thermostat with a brand new one from my understanding rather than a lower temp thermostat. So any thermostat with the OEM specifications will work fine?
     
  6. Jun 26, 2022 at 6:54 PM
    #6
    Dm93

    Dm93 Test Don't Guess

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    OEM is preferred but any one that opens at the same temperature should be fine.
     
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  7. Jun 26, 2022 at 6:54 PM
    #7
    MACKT28

    MACKT28 [OP] Well-Known Member

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    I did notice that URD has listed a performance thermostat for the 170 degree allowing for lower coolant temperature curious on that as it states for more aggressive timing
     
  8. Jun 26, 2022 at 6:59 PM
    #8
    Dm93

    Dm93 Test Don't Guess

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    Unless you are racing the truck I don't see a benefit of going with a cooler one, Toyota doesn't start doing any adaptive learning (idle, fuel trim, timing, etc) until the coolant temp is above 174F and will also set a code for low coolant temp if it doesn't reach a minimum specified temperature for an extended period of time.
     
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  9. Jun 26, 2022 at 7:11 PM
    #9
    PzTank

    PzTank Stuck in the Well

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  10. Jun 26, 2022 at 7:58 PM
    #10
    Waasheem

    Waasheem The catholic radio bear

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    I think there’s an upgraded thermostat housing or something to replace a piece prone to failure.

    Since you’re replacing the thermostat, pay attention to the placement of the jiggler. Which is my sneaky way of asking others where it should be. My opinion is it should be on top to help purge air out faster.
     
  11. Jun 26, 2022 at 11:33 PM
    #11
    TacoTuesday1

    TacoTuesday1 Well-Known Member

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    I’ve heard lower degree thermostat tricks the engine into thinking it’s cold thus dumping more fuel (bad)
     
  12. Jun 27, 2022 at 9:23 AM
    #12
    b_r_o

    b_r_o Beef jerky time

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    I put a colder t-stat in my eurovan thinking it would help protect against overheating in the summer

    Since then I've been getting shit gas mileage, it will code p0128 (coolant system perf) from time to time and it takes forever to defrost the windshield in the winter.

    Not exactly an upgrade
     
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