Start - Step Timing Control Box

The Start - Step Timing Control Box from MSD Ignition is a precision engine management tool designed for serious performance builders and tuners who demand accurate ignition timing control across the entire RPM band. This control box is ideal for those working on street machines, bracket racing setups, or high-output engine builds, providing the programmable flexibility needed to optimize spark advance in real-world conditions.

MSD's timing control technology allows for independent ignition timing adjustments without compromising reliability or requiring extensive rewiring. The compact module integrates seamlessly with MSD Ignition systems and features step-increment timing adjustment capability, enabling users to compensate for fuel octane, ambient temperature, boost pressure, or nitrous oxide application on the fly. Its solid-state circuitry ensures consistent operation without drift or calibration loss.

Engine builders working with carbureted or speed-density fuel-injected platforms will find this control box essential, as it operates independently of the primary ignition system. This eliminates the need for complex factory ECU reprogramming while maintaining full compatibility with existing MSD components and wiring harnesses. The compact design makes installation straightforward even in tight engine compartments.