time for 180*
#21
Guys, the temp sensor is on the radiator side of the system. You'd need one on the engine'* lower hose to determine exit temp of the coolant, which isn't going to be any different.
As to running at 183 degrees, Will, it seems unlikely at best. It'* easy to tell. Let your car idle after a run and squeeze the upper radiator hose. If it'* solid, the system is pressurized-which means coolant temp is above boiling. And that'* prolly where it'* designed to be.
This is an academic discussion, to be sure. But I'd also say that Pontiac had a few powertrain engineers that spent a few bux to determine correct coolant temp.
(of course, these are the same guys that designed the UIM, so.... )
As to running at 183 degrees, Will, it seems unlikely at best. It'* easy to tell. Let your car idle after a run and squeeze the upper radiator hose. If it'* solid, the system is pressurized-which means coolant temp is above boiling. And that'* prolly where it'* designed to be.
This is an academic discussion, to be sure. But I'd also say that Pontiac had a few powertrain engineers that spent a few bux to determine correct coolant temp.
(of course, these are the same guys that designed the UIM, so.... )
#22
Senior Member
True Car Nut
Joined: Jul 2003
Posts: 6,127
Likes: 1
From: Westerville, Ohio 2000 Black SSEi
While a thermostat itself will not cool the motor, the cooler thermostat combined with lower fan points settings (to match the thermostat rating) will indeed keep the coolant cooler and thereby the motor.
The thermostat simply opens at its temperature setting. A car with stock fan points (205 and 215 (hi)) will not run cooler with a 180 t-stat only, as the car will heat up to the point the fans kick on (or high speed air cools the temps some) this is why cars in traffic run hotter than those on the move.
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
The thermostat simply opens at its temperature setting. A car with stock fan points (205 and 215 (hi)) will not run cooler with a 180 t-stat only, as the car will heat up to the point the fans kick on (or high speed air cools the temps some) this is why cars in traffic run hotter than those on the move.
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
#23
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
#24
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True Car Nut
Joined: Jul 2003
Posts: 6,127
Likes: 1
From: Westerville, Ohio 2000 Black SSEi
Originally Posted by Bob Dillon
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
#25
Senior Member
True Car Nut
Joined: Jul 2003
Posts: 6,127
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From: Westerville, Ohio 2000 Black SSEi
This isnt to say that the system will always be at that temp. During Hi speed WOT runs such as the 1/4 mile my system with a 160 will heat up to 180 during the run but then cool down as soon as I get out of the throttle. But during cruise or in town driving my temps are always at 160ish.
#26
Originally Posted by Bob Dillon
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
cooling system,,,do a google serch and get educated man!!!!
I agree 100% with Rogue'* statment;
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
#27
Originally Posted by Rogue
Originally Posted by Bob Dillon
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
It is important to point out, as well, that the thermostat itself is a partial restriction to coolant flow. The traditional Pontiac V-8, for example, will promptly overheat without a thermostat in place, because transit time of the coolant through the radiator is reduced greatly. We remove the thermostat for the drag strip, but also have a restrictor plate in place of the thermostat to slow transit time.
#28
Originally Posted by Rogue
This isnt to say that the system will always be at that temp. During Hi speed WOT runs such as the 1/4 mile my system with a 160 will heat up to 180 during the run but then cool down as soon as I get out of the throttle. But during cruise or in town driving my temps are always at 160ish.
#29
[quote="daman"]
Man your a curious one aint ya,,sounds like you don't know the first thing about a
cooling system,,,do a google serch and get educated man!!!!
I agree 100% with Rogue'* statment;
]
Thanks for your scintillating and erudite comments. You add much to this discussion between friends.
Originally Posted by Bob Dillon
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
Man your a curious one aint ya,,sounds like you don't know the first thing about a
cooling system,,,do a google serch and get educated man!!!!
I agree 100% with Rogue'* statment;
]
#30
[quote="Bob Dillon"]
Man your a curious one aint ya,,sounds like you don't know the first thing about a
cooling system,,,do a google serch and get educated man!!!!
I agree 100% with Rogue'* statment;
]
Thanks for your scintillating and erudite comments. You add much to this discussion between friends.
We'll.......listen to what your friends telling ya!!!!!!!!!!!!!
Originally Posted by daman
Originally Posted by Bob Dillon
A car whose colder thermostat opens sooner and allows coolant to circulate earlier will run cooler on the highway than those with stock 195 thermostats.
Man your a curious one aint ya,,sounds like you don't know the first thing about a
cooling system,,,do a google serch and get educated man!!!!
I agree 100% with Rogue'* statment;
]