Reluctor Keyed + or - 10 Degrees

The MSD IGNITION Reluctor Keyed + or - 10 Degrees (MSD8627) is a precision reluctor ring designed for high-performance V8 ignition systems where timing accuracy and tuning flexibility are critical. This component serves as the trigger element for electronic ignition control, reading engine speed and position to optimize spark delivery across the entire RPM range. The keyed design with adjustable offset capability makes it an essential upgrade for engine builders, racing enthusiasts, and performance tuners who demand fine-grained control over ignition timing on their V8 platforms.

The reluctor ring features a robust keyed configuration that prevents accidental rotation, ensuring consistent ignition signal generation under extreme engine conditions. The plus or minus 10-degree adjustment capability allows tuners to dial in optimal timing curves without requiring a complete reluctor replacement, accommodating different cam profiles, fuel blends, and boost levels. This adjustable offset design is engineered to work seamlessly with MSD's advanced ignition controllers, translating precise reluctor positioning into accurate crankshaft position sensing. The compact 6.05 x 1.45 x 7.95-inch form factor and lightweight 0.18 lbs construction minimize rotating mass while maintaining durability across high-RPM applications.

This reluctor ring is ideal for V8 engines equipped with MSD ignition systems, particularly those in racing, street performance, and custom engine builds where timing adjustability provides a competitive advantage. Installation requires alignment with the crankshaft reluctor mount location, with the keyed design ensuring repeatable positioning for consistent spark timing across multiple runs. Whether you're optimizing a naturally aspirated big-block, tuning a turbocharged LS platform, or developing a competition engine, the MSD IGNITION Reluctor Keyed + or - 10 Degrees delivers the precision adjustment needed to maximize horsepower and drivability. Check compatibility with your specific MSD controller and engine configuration before installation.