Rev Limiter, DUI, All DUI/HEI Distributors

HEI / DUI Rev Limiter by Davis Unified Ignition®

Sequential spark limiting provides smooth control near the selected maximum engine speed.

This Davis Unified Ignition® rev limiter reduces engine speed by skipping spark on alternating cylinders rather than repeatedly leaving the same cylinder unfired. That approach helps limit fuel loading and provides smoother limiting action near the selected threshold. Plug-in modules set the rpm limit; 6,000-, 7,000- and 8,000-rpm modules are included. It is intended for compatible four-, six- and eight-cylinder HEI/DUI systems. Additional module ranges allow further adjustment of the rpm limit.

• Compatible 4-, 6- and 8-cylinder HEI/DUI ignition systems • Soft-touch limiting distributes skipped sparks across cylinders • Plug-in modules set the rpm threshold • 6,000-, 7,000- and 8,000-rpm modules included • Additional module ranges: see SKU # CH33811