thermostat
- Thread starter jlat
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The other 4 cars have 160 but they sit until April nobody likes driving around with a 1000hp at the wheels on salt covered roads lol
180 deg thermostat in my turbo Buick, but be sure to have your chip reprogrammed to turn the fans on higher than the standard chip is set at
There's always a lot of opinions on this. Almost as much as what type of oil to use. The MAIN thing a thermostat is supposed to do is help get the engine up to normal operating temperature sooner. They've also engineered the system using the thermostat as an inline flow restrictor because it will do that automatically. So it factors into the factory flow design.
Generally speaking, 195 was used for emission considerations. A bit hotter than the 180, so the overall "benefit" was slightly reduced emissions/less wear. So they went with that. I say that may be true, but 15 degrees would only make a difference if you're G-body is a daily. Most of us don't daily our G's. And if you're racing it, forget the thermostat anyway, just use a restrictor- you'll likely be tearing into the engine way sooner than a stocker, so who cares much about wear rates?
Unless you absolutely have to run a 195 thermostat for your emissions testing, there's no practical, everyday reason to run an 195 unless you want to. You can run a 180. Interestingly, the older Olds V8s ran with 180 thermostats without issues. If your cooling system sucks and can't reject heat fast enough anyway, you'll see higher temps than whatever your thermostat does anyway. Even on cold days. A 195 isn't going to make that much of a difference in your heater/defrost operation, IMO. If you stuck one hand in 180 degree F water and the other in 195 degree F water, you probably won't be able to tell the difference over your screaming.
Generally speaking, 195 was used for emission considerations. A bit hotter than the 180, so the overall "benefit" was slightly reduced emissions/less wear. So they went with that. I say that may be true, but 15 degrees would only make a difference if you're G-body is a daily. Most of us don't daily our G's. And if you're racing it, forget the thermostat anyway, just use a restrictor- you'll likely be tearing into the engine way sooner than a stocker, so who cares much about wear rates?
Unless you absolutely have to run a 195 thermostat for your emissions testing, there's no practical, everyday reason to run an 195 unless you want to. You can run a 180. Interestingly, the older Olds V8s ran with 180 thermostats without issues. If your cooling system sucks and can't reject heat fast enough anyway, you'll see higher temps than whatever your thermostat does anyway. Even on cold days. A 195 isn't going to make that much of a difference in your heater/defrost operation, IMO. If you stuck one hand in 180 degree F water and the other in 195 degree F water, you probably won't be able to tell the difference over your screaming.
Olds also have bypasses......There's always a lot of opinions on this. Almost as much as what type of oil to use. The MAIN thing a thermostat is supposed to do is help get the engine up to normal operating temperature sooner. They've also engineered the system using the thermostat as an inline flow restrictor because it will do that automatically. So it factors into the factory flow design.
Generally speaking, 195 was used for emission considerations. A bit hotter than the 180, so the overall "benefit" was slightly reduced emissions/less wear. So they went with that. I say that may be true, but 15 degrees would only make a difference if you're G-body is a daily. Most of us don't daily our G's. And if you're racing it, forget the thermostat anyway, just use a restrictor- you'll likely be tearing into the engine way sooner than a stocker, so who cares much about wear rates?
Unless you absolutely have to run a 195 thermostat for your emissions testing, there's no practical, everyday reason to run an 195 unless you want to. You can run a 180. Interestingly, the older Olds V8s ran with 180 thermostats without issues. If your cooling system sucks and can't reject heat fast enough anyway, you'll see higher temps than whatever your thermostat does anyway. Even on cold days. A 195 isn't going to make that much of a difference in your heater/defrost operation, IMO. If you stuck one hand in 180 degree F water and the other in 195 degree F water, you probably won't be able to tell the difference over your screaming.
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