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Old Aug 29, 2011 | 11:11 AM
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Default therostat query

just a dumb question,I am sure it won t matter either way, I am taking my car to the tuner this week and am planning on changing the stat to a 160,any advantage of changing it before the tune ? I will be changing soon anyways,I wouldn t think it would matter, but opinions are always of some value.

thanks Al
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Old Aug 29, 2011 | 04:11 PM
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not really because unless you reprogram your fans it will just mean that the thermostat will be open longer before the fans kick on. there is no difference between a 160 degree thermostat and a 190 once the rated temp has been reached. the 190 just takes longer to open up. i put a 160 in mine and the temps didnt change it still ran around 190-215 around town.
then i had the fans reprogrammed and now it runs 170-200 depending on traffic.
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Old Aug 29, 2011 | 09:14 PM
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Originally Posted by baxsom
not really because unless you reprogram your fans it will just mean that the thermostat will be open longer before the fans kick on. there is no difference between a 160 degree thermostat and a 190 once the rated temp has been reached. the 190 just takes longer to open up. i put a 160 in mine and the temps didn't change it still ran around 190-215 around town.
then i had the fans reprogrammed and now it runs 170-200 depending on traffic.
There is a big difference between a 160 and a190... If you want my very educated opinion... and you living in Ontario... you do NOT want to run a 160 stat in the winters of Ontario... this will insure one thing... premature engine failure down thew road.. with a 160 stat and 10degrees F you are guaranteed to have 160 coolant, and 180 oil temp..... anything under 200F for oil will dramatically decrease lubricity... a 160 is fine in the summer time... but when ambient temps approach freezing.. your only asking for trouble... We at GM are so concerned about cold starts we added cold starts to the OLM algorithms because cold engine oil has a dramatic effect on shear and thermal breakdown. You can use that 160 in the summer and when its above freezing and even tune it as long as the oil can get to 200F.. IN the winter you need to put the stock stat back in... that's what I do and it takes me five minutes to make the swap, with less than a pint of coolant loss... although the sweet spot for oil is 210/220F. I wont argue these points in open forum, take it or leave it or contact me in PM.
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Old Aug 29, 2011 | 09:29 PM
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Thanks for the good input. but, i don t drive my car after Sept/Oct. then it doesn t come out again untill may. So in light of those facts,I should not have a problem. I can t see anyone driving thier Corvette in the winter time.
Thanks Al
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Old Aug 29, 2011 | 09:42 PM
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Originally Posted by walleyejack
Thanks for the good input. but, i don t drive my car after Sept/Oct. then it doesn t come out again untill may. So in light of those facts,I should not have a problem. I can t see anyone driving thier Corvette in the winter time.
Thanks Al
The nice thing about driving your car in the winter on a nice cool crisp day is the air is so much denser and you can pick up enough ponies that you can feel it in the seat of your pants.. with a cold air intake,
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Old Aug 30, 2011 | 05:15 AM
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Mine opens at 180 and my oil barely makes 200 in cool (not cold) weather. Have you considered just modifying your stock thermostat to open a bit sooner rather than using a 160? Next time I have the cooling system open I plan to modify to open slightly higher.
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Old Aug 30, 2011 | 10:23 AM
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Originally Posted by vettenuts
Mine opens at 180 and my oil barely makes 200 in cool (not cold) weather. Have you considered just modifying your stock thermostat to open a bit sooner rather than using a 160? Next time I have the cooling system open I plan to modify to open slightly higher.
Its much easier to have two stats, depending on where you live... takes five minutes to swap, all you need is something to adjust your fan speeds.. I use a Vinci fan controler..
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