Exhaust Flow Calculator
Calculate the required exhaust flow rate for your engine with our comprehensive calculator. Determine optimal exhaust system performance based on engine specifications and operating conditions.
Step 1: Engine Specifications
Understanding Exhaust Flow
Internal combustion engines produce exhaust gases based on displacement, RPM, and volumetric efficiency. Turbocharged and supercharged engines typically produce more exhaust flow due to higher volumetric efficiency.
Step 2: Exhaust Parameters
About Exhaust Flow
Exhaust flow rate depends on engine displacement, RPM, and volumetric efficiency. Higher temperatures increase gas volume but decrease density. Back pressure affects flow but is necessary for proper scavenging in performance applications.
Exhaust Flow Results
Required Exhaust Flow Rate
Engine Type Flow Rate Comparison
| Engine Type | Flow Factor | Required Flow Rate | HP per CFM |
|---|
Exhaust System Requirements
Exhaust Flow Formula
Flow Rate = (Displacement × RPM × Flow Factor × 0.0005787) / (1 + (Back Pressure / 14.7))
To calculate exhaust flow rate: Multiply engine displacement (in cubic inches) by RPM and flow factor, convert to CFM, then adjust for back pressure effects on flow.
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