Switching to a 170 Degree Thermostat

Discussion in 'Forced Induction - 5.0L V8 Engine' started by hossman, Mar 22, 2019.

  1. hossman

    hossman Well-Known Member

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    I was looking to switch from the stock thermostat to the 170 degree thermostat on my 17 Roush. Is there any drawbacks to going to the 170? I’m in the northeast and drive it in the winter sometimes and does it have any impact on winter driving? Thanks all.
     
  2. Jay-rod427

    Jay-rod427 Well-Known Member

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    Drive mine down to 20 or so degrees no probs.
     
  3. Kona 18

    Kona 18 Well-Known Member

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    IF you understand how thermostats works you will know that it does not matter how cold it is outside, the opening temperature is 170*, but that is not the full open temperature. You will be fine, your head temps will usually hover around 190*, and your coolants temps will be in the 180* range. The car will heat up to temp at the same rate since the t-stat is shut closed when below 170*
     
    TyrFryr_5.0h likes this.
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