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Diesel turbo operation question. Boost reference?
The key is volumetric efficiency. Forced induction improves mass flow but the volumetric efficiency stays approximately the same, that is between 1800 and 2200 RPM. When the engine is operated outside of the peak efficiency, there is more waste heat. Higher speeds mean more waste heat to the...- Keith_J
- Post #12
- Forum: CUCV Hot Rodding and Modification
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Diesel turbo operation question. Boost reference?
To further this topic, diesels nearly always run lean. Far lean, at idle, this engine injects 6 to 10 milligrams of diesel each combustion stroke. 379 cubic inches of air gets under 50 milligrams of diesel. That is 7000 milligrams of air, basically a 140:1 air to fuel ratio. Full throttle...- Keith_J
- Post #5
- Forum: CUCV Hot Rodding and Modification
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Diesel turbo operation question. Boost reference?
The skinny pedal. Throttle in a diesel controls only fuel. The injection pump is calibrated to provide only as much fuel as possible, the limiting factor is exhaust gas temperature. More air with a turbo means that limit is higher. More can be injected with a turbo so there is an...- Keith_J
- Post #4
- Forum: CUCV Hot Rodding and Modification