Description
If you’re running a high-RPM engine, ignition consistency directly impacts your lap times and reliability. The MSD 7AL-2 Plus delivers 47,000 volts of spark energy with a 2-step rev limiter to keep your engine in the optimal power band without risk of over-rev damage. Built for 4, 6, and 8-cylinder engines, this ignition box gives you the voltage stability and diagnostic feedback serious racers demand.
The internal upgrades over the original 7AL-2 push spark energy over 40% higher, translating to faster combustion and more responsive throttle feel across your entire RPM range. A built-in diagnostic LED shows coil firing status in real time, eliminating guesswork during tuning sessions. Bolt-on installation using the same mounting pattern as the previous generation makes this a straightforward upgrade path for racers already familiar with MSD systems.
- Secondary Voltage: 47,000 volts
- Spark Energy: 160 mJ per spark
- Primary Voltage: 570 volts
- Operating Voltage: 12–18 volts, negative ground
- Current Draw: 6 amps @ 6,000 RPM; 12 amps @ 12,000 RPM
- 2-Step Rev Limiter: Included, adjustable
- Supplied RPM Chips: 3000, 7000, 8000, 9000
- Diagnostic LED: Coil firing indicator
- Cylinder Compatibility: 4, 6, 8-cylinder
- Mounting: Same as 7AL-2, vibration mounts included
- Dimensions: 8.25″ L × 3.75″ W × 5.75″ H
- Weight: 4.85 lbs
- MPN: 72223
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