Exhaust Scavenging Calculator
Calculate exhaust scavenging efficiency and optimize your vehicle’s exhaust system. Understand how pipe diameter, length, and engine specs affect performance.
Step 1: Engine Details
Understanding Exhaust Scavenging
Exhaust scavenging uses pressure waves to help pull exhaust gases from cylinders, improving engine efficiency. Properly tuned exhaust systems can increase power and torque across the RPM range.
Step 2: Exhaust System
About Pipe Dimensions
Primary pipe diameter and length are critical for tuning exhaust scavenging. Smaller diameters increase gas velocity but may restrict flow at high RPM. Longer pipes typically improve low-RPM torque.
Exhaust Scavenging Results
Estimated Scavenging Efficiency
Exhaust System Comparison
| System Type | Pipe Diameter | Pipe Length | Scavenging Efficiency | Power Gain |
|---|
Scavenging Efficiency Analysis
Exhaust Scavenging Formula
Efficiency ∝ (Velocity × Pipe Length) / (Displacement × RPM)
Scavenging efficiency is calculated based on exhaust gas velocity, pipe dimensions, and engine characteristics. Optimal systems create negative pressure waves that help extract exhaust gases during valve overlap.
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