Quote:
Originally Posted by Starter986
Hi JFP. OK. You;re one of those go-to guys... and I would appreciate some clarification.
The LTT doesn't cause the engine to run cooler... it just serves to allow coolant to flow sooner than a stock thermostat. The engine is going to get as hot as it would even if there were a stock thermostat installed. So... low temp or stock thermostat the engine is going to hit the same operating temp. No two ways around that fact. Please tell me I'm wrong... and tell me why. I really want to know.
Now... installing the S cooler in a non-S car... more oil cooling ability.. that I'll buy.
In advance, thank you for your consideration.
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OK, that's easy, your wrong. The thermostat in the engine functions just like the thermostat in your house; it throttles coolant flow to maintain proximity to its rated temperature. If your cooling system did not have the excess heat transfer capacity in the radiators to shed sufficient heat, it would never cool back down running after getting stuck in traffic; but that is not what happens, it does cool back down until the thermostat takes over flow control again. The internet "old wives tale" about thermostats not controlling steady state temperatures has been needlessly confusing people for millennia. One of the easiest ways to prove my conjecture is to totally leave out the thermostat; if your idea was correct, the engine would still get up to 210-220 F; but that is not what happens. Instead, it struggles to get above 120-140 F under the same operating conditions because coolant is circulating too fast and the radiators are pulling out the heat faster than the engine can produce it.
Thermostats in your engine serve a vital function, just like the one on the wall in your home, without them things would get rather uncomfortable.