Advanced Timing Optimization

Timing and RPM Relationship

Higher RPM engines typically benefit from more advanced timing because:

Piston speed increases, requiring earlier ignition for complete combustion
More advance helps maintain power at peak RPM
Proper timing can prevent power drop-off at high RPM

However, too much advance at low RPM can cause issues. This is why some engines use variable timing or why you may need to tune based on your RPM range.

Timing Key Selection Guide

2° Key - Conservative

Best for: Street builds, moderate RPM (up to 5000 RPM). Safe with stock flywheel if RPM stays below 4000.

4° Key - Moderate

Best for: Performance builds, higher RPM (5000-6000 RPM). Requires billet flywheel.

6° Key - Aggressive

Best for: Race builds, very high RPM (6000+ RPM). Requires billet flywheel and billet rod. Use with caution and proper safety components.

Verification Required

Always verify your actual timing with a timing light after installing a timing key. The key degree is approximate—actual timing may vary based on engine condition, flywheel position, and other factors.