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Engine BMEP - From Output Data

Brake Mean Effective Pressure from engine power, displacement, and speed - the primary engine-load benchmark.

BMEPEngineMetric
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Formula, assumptions, and limits

BMEP=P60VdnzBMEP = \frac{P \cdot 60}{V_d \cdot n \cdot z}
SymbolMeaningUnit
VdV_dSwept displacement
nnrpmrpm
zzStrokes per cycle

Source: Heywood - Internal Combustion Engines

In short

Brake Mean Effective Pressure from engine power, displacement, and speed - the primary engine-load benchmark.

Learn the theory Engine Performance Monitoring: PMI Systems