- Ignition & Electrical
- Crank Trigger
Crank Triggers
Precise ignition timing is critical for optimum engine performance in high-rpm and racing applications. This is achieved using an input sensor like a crank trigger. These devices feed the ignition box or ECU the precise position of the crankshaft in its rotation so that spark can be delivered to the spark plug at the best possible moment, which will maximize performance. JEGS offers high-quality crank trigger kits for Chevy, Ford, and Mopar engines from the best manufacturers, which include MSD, Moroso, FAST, Holley, and others. View our wide custom and universal crank trigger kit selection of that will help keep your ignition timing optimized.
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Precise control over ignition timing is essential for engine performance in high-RPM applications. Camshaft-to-distributor drive gears, reluctor wheels and pickups all have tolerances and clearances that can cause a slight lag and inconsistencies in timing, especially at high RPMs.
Crank triggers are a great feature; they cut down on the number of rotating and mechanical parts in the ignition for more consistent timing and performance. Crank triggers send a real-time signal to the ignition box or ECU to inform it of the position of the crankshaft in rotation. Crank trigger wheels are mounted directly to the front of the harmonic balancer and are designed with either a series of teeth and gaps, or magnets. A pickup mounted close to the wheel senses the magnets or gaps, sending a signal to the ECU or ignition box, which then uses that information to regulate spark delivery. Installation can be tricky, but a properly installed crank trigger then allows you to fine-tune timing to best suit your performance targets and your engine's needs.
This is where you can find crank triggers from brands like Moroso, Chevrolet Performance, Aerospace Components, Holley and MSD, with all the related parts needed for installation. That includes crank trigger setups for Chevrolet/GM, Ford and Mopar engines, including Hall effect switches, speed sensor reluctors, wiring harnesses and connectors. All crank triggers and kits are designed with top-quality materials, precision manufacturing and comprehensive factory warranty coverage.