Lobe Separation Angle Calculator

Calculate Lobe Separation Angle



Formula

The formula to calculate the Lobe Separation Angle (LSA) is:

\[ LSA = \frac{IC + EC}{2} \]

Where:

What is Lobe Separation Angle?

The Lobe Separation Angle (LSA) is a critical parameter in camshaft design, affecting engine performance. It is the angle between the intake and exhaust camshaft lobes, influencing the overlap period when both intake and exhaust valves are open. A wider LSA typically results in a smoother idle and better low-end torque, while a narrower LSA can improve high-end power and throttle response.

Example Calculation

Let's assume the following values:

Using the formula to calculate the Lobe Separation Angle (LSA):

\[ LSA = \frac{IC + EC}{2} = \frac{110 + 120}{2} = 115 \text{ degrees} \]

The Lobe Separation Angle (LSA) is 115 degrees.