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possible to upgrade m20 TB with M30 TB

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    #16
    uh, they do. the M50 actually uses a thermostat to control it's heater.
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    Bimmerlabs

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      #17
      ohhh... interesting

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        #18
        Originally posted by nando View Post
        btw, apparently the temperature that is most likely to form ice in your TB is about 70 degrees. I'm not sure cutting off the TB heater is going to make any difference in intake temps considering how small the surface area is, and your intake manifold likely gets way hotter anyway.
        i wish my beers would ice at 70 degrees.

        I have a hard time believing anything freezes at 70 degrees.

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          #19
          70*F OAT that's outside airtemp. Here's some basic trade school science for ya the throttle body like a carburetor is a venturi shape as the air is forced through the narrowing area in the TB its speed has to increase to make it through this lowers the pressure and temperature of the air (or if you wanna sound real geeky the dynamic pressure increases and the static pressure decreases) so that air which was 70*F is now 32 or less. Afaik the optimum temp for carb icing is more like 60 but w/e the reason is that below a certain temp the air cannot hold enough humidity to condense out and form ice in the TB.

          '89 Alpine S52 with goodies

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