AEM Engine Position Module (EPM)AEM
AEM's Engine Position Module (EPM) replaces an engine's distributor and allows for the use of coil-on-plug or wasted-park ignition systems on popular Chevy V8 small blocks and big blocks, and Honda B-, D-, H-, and F-series race engines. Installation is simple via a four-wire connection (12V, ground, crank signal, and cam signal).
AEM's EPM provides precise engine position using dual zero-speed optical sensors, which offers the advantage of immediate signal generation regardless of engine speed. The EPM easily adapts to any positive-drive, half-engine speed device such as a cam or distributor drive, and can be used with any aftermarket engine management system that recognizes the common 24 & 1 pattern for crank and cam signals.
Bolt-on systems available for all distributed Chevy small block and big block engines, and Honda B-, D-, H-, and F-series race engines
Very simple four-wire connection for easy installation (12V, ground, crank signal, and cam signal)
Output signal amplitude and waveform stay constant at all RPM
Shock absorbing elastomer drive system eliminates potential for ignition timing deviation and protects the EPM from vibration
24-tooth crank, 1-tooth cam pattern per engine cycle for accurate timing and easy set up (Pattern available in cam/crank sensor wizard in AEMPro/AEMTuner/InfinityTuner)
EPM manufactured from 6061 T-6 billet aluminum