Comments by "Golden Croc" (@GoldenCroc) on "Massive Drag Reduction For Tiny Budget - How I turned my family car into an AERO Star" video.

  1.  @288gto7  I can agree with everything you wrote here. Consumer proiducts are different to military ones after all. By the way, I currently own a BMW with the M57 diesel engine, and its normal operating temperature is 89C. The car, as many other BMWs, does not feature a temperature gauge, but I have an aftermarket one fitted that reads the onboard data from the ECU. When I drove on Nurburgring this summer, it wasnt until about (according to the gauge) 123C it threw up a warning about excessive engine temp and cautioned me to slow down. Since I wanted to keep going at full speed, I did so. At about 128C It gave me a red light and "very high temp, stop immediately". I went on a bit further at a quite fast pace, at most I saw 131C ... Funnily enough, the engine survived (at least short term, knock on wood), however, it killed the thermostat of the engine, which failed open, so after that it wont go above 60-65C during normal driving when I drove the car home. Cheers.
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  2.  @288gto7  The example I gave was for the BMW N52 engine, featured in various cars of the same manufacturer since mid 2000s. From the BMW TIS about the different temperature modes availible to the DME: "112 °C = Economy 105 °C = Normal 95 °C=High 80 °C = High and regulation by the map thermostat If the vehicle handling causes the engine control unit to detect the economical operating range Economy, the DME regulates to a higher temperature (112 C)." In practice, if the load on the engine isnt too high and other parameters are favorable, it tries to regulate up to the 112c to increase economy and efficiency. Cheers mate.
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  3. Since you wrote "never made high temperature cooling systems" I must say that is not correct. BMW for example have used 112c temperature as a normal operating temperature under some conditions (by way of electronic control) since many years back.
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