Scavenge Air Pressure - 2-Stroke Estimate
Estimated 2-stroke scavenge-air pressure at a given load given turbocharger pressure ratio and ambient conditions - baseline for verifying cylinder fill and smoke-density performance.
Scavenge pressure (gauge)
2.81bar(g)
Scavenge pressure (abs)
3.82bar(a)
Formula, assumptions, and limits
Typical MCR scavenge 3–4 bar gauge. Falling scavenge at constant load → fouled T/C nozzles, dirty air cooler, or leaking scavenge receiver drain.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Ambient pressure | bar(a) | barometer | |
| T/C compressor pressure ratio | - | T/C performance curve | |
| Charge-air-cooler pressure drop | mbar | CAC gauges |