Quote:
Originally Posted by synollimit
Actually it will measure velocity, volume and flow of air in a way.
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Those variables can be derived (if you know other variables), but they're not what is being measured. Ofc, even the mass flow measurement is not direct, it is derived from heat loss.
Quote:
Originally Posted by synollimit
A turbo'd car will max out MAF sensors if they are installed in to small of a diameter tube. ...
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"As long as you are within the operating range of the sensor,..."
Quote:
Originally Posted by synollimit
Density has nothing to do with ram air. It has to do with heat. Hotter air is less desnse. Ram air at ambient temp is still the same temp as ambient air in a closed space as long as heat soak is kept at bay. The amount of air molicules entering the engine will be the same. However a ram air will cause the senser to increase fuel which is we're the bogging and hesitation come from since wind is never going to be the same driving down the road, for example a semi blowing past you rocking your car.
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Wrong on so many levels. To start with,
pressure, volume, and temperature are interrelated. (that explanation tends to be overly technical, Google "PVT" for others). If you change any of those variables, something else has to change. If you increase the pressure (ram air) and the temperature stays the same (there will be a slight increase of temp anytime you compress a gas, but not important for this discussion), the volume has to decrease.
When the volume decreases, the density goes up.
The
raison d'être of ram air is to increase pressure which in turn increases density which means more O2 molecules per unit of volume.