Accel Nose Cone Ignition Module for 1970-1999 Harley Davidson Big Twin Shovelhead and Sportster

Accel Nose Cone Ignition Module for 1970-1999 Harley Davidson Big Twin Shovelhead and Sportster

The Accel nose cone ignition module is the result of extensive dyno development — built to deliver the kind of throttle response, idle quality, and timing precision that riders notice immediately and rely on for the long haul. Whether the motor is stock or built out with big-inch displacement and high-compression heads, this module has a curve for it, making it one of the most versatile ignition upgrades available for classic Harley-Davidson platforms.

Key Features

• 14 selectable ignition timing curves cover everything from a stock engine to a full built big-inch, high-compression motor without changing modules
• Single-fire and dual-fire mode selectable — eliminates the need to source a new ignition when switching coil configurations
• Selectable RPM rev limiter protects the engine at high-output operating levels
• Built-in LED timing light enables quick, accurate static timing without additional tools
• V.O.E.S. input, tachometer output, and external ground are built into the harness for broad compatibility and reliable operation
• Aluminum housing machined for efficient heat dissipation in demanding riding conditions
• Extensive dyno testing behind every timing curve for proven, repeatable performance

Technical Specifications

• Timing Curves: 14 selectable presets
• Fire Mode: Single-fire and dual-fire selectable
• Rev Limiter: Selectable RPM
• Timing Aid: Built-in LED timing light for static timing
• Harness Features: V.O.E.S. input, tachometer output, external ground
• Housing Material: Machined aluminum

Fitment Notes

• Fits 1970-1999 Harley-Davidson Shovelhead and Big Twin — carbureted models only; fuel injected models are not compatible
• Fits 1971-1997 Harley-Davidson Sportster — excludes 1998-2007 1200 Sportster models
• Sportster year and displacement compatibility should be verified before ordering — see discrepancy note regarding 883 vs 1200 applicability beyond 1997
• Not compatible with fuel injected Harley-Davidson models
• Review the Fitment tab for complete year and model breakdown