Best Inline Thermostat Mod
#11
What did you expect ???? The inline on not inline thermostat does not change the operation temperature of the engine coolant. A thermostat dictates when the flow changes from bypass to radiator.
And does no other function. A thermostat does not make an engine run cooler or hotter. After it opens the flow to the radiator and closes the bypass, the engine coolant temperature obeys to many factors none being the thermostat. Clues: air flow, rpm, ambient temperature, climbing...
And does no other function. A thermostat does not make an engine run cooler or hotter. After it opens the flow to the radiator and closes the bypass, the engine coolant temperature obeys to many factors none being the thermostat. Clues: air flow, rpm, ambient temperature, climbing...
#13
185F moving
194F idle
On the highway with a load it will climb a bit but then usually come back down.
'03 D2 with normal coolant
#14
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SundayFunday (12-15-2019)
#15
Without a thermostat the engine runs cooler a longer time until engine stabilizes its operating temperature, then the heating factors take over and the thermostat or no-thermostat-present does exactly nothing as it is in open flow state towards the radiator.
The thermostat exists to manage very cold ambient temperatures to allow the engine to reach efficient warmer combustion operating temperatures and closed circuit operation.
A thermostat is a very good thing to have in polar climates. Nearly useless in tropics.
To run without a thermostat, the bypass path must be eliminated, plugged, condemned to coolant flow and will not harm engine operation unless it is winter in Alaska.
Engine block out-------> in-line thermostat or not------->radiator------->coolant pump suction. And no other flow paths.
The thermostat exists to manage very cold ambient temperatures to allow the engine to reach efficient warmer combustion operating temperatures and closed circuit operation.
A thermostat is a very good thing to have in polar climates. Nearly useless in tropics.
To run without a thermostat, the bypass path must be eliminated, plugged, condemned to coolant flow and will not harm engine operation unless it is winter in Alaska.
Engine block out-------> in-line thermostat or not------->radiator------->coolant pump suction. And no other flow paths.
Last edited by Externet; 12-14-2019 at 07:32 PM.
#16
Without a thermostat the engine runs cooler a longer time until engine stabilizes its operating temperature, then the heating factors take over and the thermostat or no-thermostat-present does exactly nothing as it is in open flow state towards the radiator.
The thermostat exists to manage very cold ambient temperatures to allow the engine to reach efficient warmer combustion operating temperatures and closed circuit operation.
A thermostat is a very good thing to have in polar climates. Nearly useless in tropics.
To run without a thermostat, the bypass path must be eliminated, plugged, condemned to coolant flow and will not harm engine operation unless it is winter in Alaska.
Engine block out-------> in-line thermostat or not------->radiator------->coolant pump suction. And no other flow paths.
The thermostat exists to manage very cold ambient temperatures to allow the engine to reach efficient warmer combustion operating temperatures and closed circuit operation.
A thermostat is a very good thing to have in polar climates. Nearly useless in tropics.
To run without a thermostat, the bypass path must be eliminated, plugged, condemned to coolant flow and will not harm engine operation unless it is winter in Alaska.
Engine block out-------> in-line thermostat or not------->radiator------->coolant pump suction. And no other flow paths.
#17
#20
But the working engine coolant temperature obeys to other factors. An engine with or without thermostat cannot get cooler than to a certain limit. That limit comes from ambient temperature, rpm, air flow, coolant mass flow, climb rate, tow load, lead feet, mixture ratio...
There isn't a thermostat that can make the engine run cooler for a while since start-up than having no thermostat at all.