6btm Boost Timing Master

The MSD 6BTM Boost Timing Master is a capacitive-discharge ignition box designed for high-performance carbureted and fuel-injected engines that require precise timing control under boost conditions. This product is ideal for performance builders, bracket racers, and enthusiasts of forced induction who need reliable ignition timing adjustments.

This analog timing control system delivers a powerful spark output of 45,000 volts, featuring multi-spark capability to ensure consistent ignition in high-load scenarios. The boost retard dial allows for real-time timing adjustments based on manifold pressure, which is crucial for turbocharged and supercharged engines experiencing rapid changes in boost levels during acceleration.

The soft-touch rev limiter is designed to protect the engine from over-rev conditions, preventing harsh fuel cuts that could destabilize combustion. This ignition box is particularly beneficial for those who require tunable ignition timing rather than fixed advance curves, making it a valuable tool for optimizing performance in variable boost applications.