Lobe Separation Angle Calculator
Determine your camshaft's LSA and optimize your engine's performance characteristics
Intake Cam Specifications
Exhaust Cam Specifications
Advanced Options
Your Camshaft Analysis
Enter your cam specs to see how your LSA affects engine performance.
Performance Characteristics
Your detailed camshaft analysis will appear here.
📊 Lobe Separation Angle Reference
| LSA Range | Typical Use | Idle Quality | Torque Curve | Peak Power |
|---|---|---|---|---|
| 102-104° | Drag racing | Rough | Narrow, low RPM | High RPM |
| 106-108° | Street/strip | Lumpy | Moderate | Mid-high RPM |
| 110-112° | Street performance | Mild | Broad | Mid RPM |
| 114-116° | Towing/daily | Smooth | Very broad | Low-mid RPM |
Note: These are general guidelines - actual performance depends on many factors including displacement, compression, and induction.
⚙️ Cam Selection Tips
Sound Characteristics
Tighter LSA (102-108°) produces more lope, wider LSA (110-116°) sounds smoother.
Fuel Efficiency
Wider LSA improves vacuum and fuel economy, better for street use.
Racing Applications
Tighter LSA increases overlap for high-RPM power but sacrifices low-end torque.
Turbo/Supercharged
Forced induction engines often benefit from wider LSA (112°+) to reduce reversion.
Installation Position
Advancing cam (4° typical) moves torque curve lower, retarding moves it higher.
Balance Considerations
Choose LSA based on your priorities: idle quality, torque curve, or peak power.
Note: This calculator provides estimates based on common camshaft design principles. Actual engine performance depends on many factors including cylinder head flow, compression ratio, exhaust system, and tuning. Always consult with your cam manufacturer for specific recommendations.