HEI Digital Rev Limiter Soft-Touch

The HEI Digital Rev Limiter Soft-Touch (MSD8727CT) is a precision engine management tool designed for serious performance enthusiasts and street/strip tuners who demand reliable RPM control without sacrificing throttle response. This compact module is specifically designed for use with HEI ignition systems, providing programmable rev limiting that protects your engine from over-revving while maintaining smooth throttle response.

MSD's digital soft-touch technology works by momentarily cutting ignition timing just before your set RPM threshold, preventing detonation and catastrophic over-rev damage without the harsh engine shock of traditional hard-cut limiters. The adjustable soft-touch algorithm allows tuners to dial in exactly how aggressively the limiter engages, protecting internal engine components during maximum-effort acceleration or accidental overshoot conditions.

This rev limiter is ideal for engine builders, performance shops, and DIY enthusiasts looking to enhance their vehicle's performance. Its compact design integrates directly with your HEI distributor, eliminating the need for separate wiring harnesses or external boxes while maintaining clean engine bay aesthetics.