1. What is the Wallace Racing Cam Degree Calculator?

The Wallace Racing Cam Degree Calculator determines the intake centerline position for camshaft degreeing in engine building. It calculates cam centerline based on advertised duration and lobe separation angle.

2. How Does the Calculator Work?

The calculator uses the intake centerline formula:

Where:

• \( Advertised\_Duration \) — Total camshaft duration in degrees
• \( LSA \) — Lobe Separation Angle in degrees

Explanation: This formula calculates the optimal intake centerline position for proper camshaft timing and engine performance optimization.

3. Importance of Intake Centerline Calculation

Details: Accurate intake centerline calculation is crucial for proper camshaft installation, optimal valve timing, and maximizing engine performance and efficiency.

4. Using the Calculator

Tips: Enter advertised duration in degrees and LSA (lobe separation angle) in degrees. Both values must be positive numbers for accurate calculation.

5. Frequently Asked Questions (FAQ)

Q1: What is Advertised Duration?
A: Advertised duration refers to the total number of crankshaft degrees that the camshaft keeps the valve off its seat, typically measured at 0.006" or 0.050" lift.

Q2: What is Lobe Separation Angle (LSA)?
A: LSA is the angle in crankshaft degrees between the maximum lift points of the intake and exhaust lobes. It affects engine characteristics like torque curve and power band.

Q3: Why is Intake Centerline important?
A: Intake centerline determines when the intake valve reaches maximum lift relative to piston position, affecting volumetric efficiency, torque, and horsepower.

Q4: How accurate should cam degreeing be?
A: Professional engine builders typically aim for within ±1 degree accuracy for optimal performance and reliability.

Q5: Can this calculator be used for all camshafts?
A: This formula works for most conventional camshaft designs, but always refer to specific cam manufacturer recommendations for exact degreeing procedures.