Quote:
Originally Posted by hemivolvo
i don't really know what the ideal gas law is, don't know physics, not too clear on how that helps me. ...
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You can use the Ideal Gas Law, (look it up:
Ideal gas law - Wikipedia, the free encyclopedia ) the air temperature, the air pressure and the displacement to calculate the mass of air going into each cylinder. When you know the mass of the air, you can calculate the
maximum mass of fuel which can be injected before going over-stoichiometric.
You don't need to be concerned about lean air:fuel ratios; that's the normal operating mode of Diesel engines. They're controlled by fuel, not air, and always run lean. The air:fuel ratio may be more than 100:1 when idling or running lightly.
But the
maximum amount of fuel is quite another thing. If you attempt to run on the rich side of stoichiometric, you'll convert fuel into smoke, greasy soot, coke and contaminated oil instead of torque & power.
Quote:
Originally Posted by hemivolvo
i think this is a pretty simple problem with a simple answer ...
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There is: Measure the
engine's exhaust gas temperature. When it hits 1200° Fahrenheit, stop increasing fuel delivery. If it goes over 1200° Fahrenheit, the engine will melt.
Measuring the turbocharger's exhaust gas temperature will yield an indirect, variable and unreliable piece of information which will not enable you to protect the engine.
