Welcome to triggerdisc.com! Your #1 source for custom cam/crank angle sensor applications for use with standalone engine management systems!

About Us

Victor Trimarchi has been a Diamond Star Motors (DSM) enthusiast since 2000. He has several years of experience working on DSMs as a professional and a hobbyist. He also has experience with Computer-Aided Design (CAD), which has made possible the modeling and fabrication of the custom trigger discs available through triggerdisc.com. He is currently using the DSM triggerdisc in his own 1G Eclipse GSX. Brad Brooks is a highly experienced engine tuner and is well-known up and down the East Coast. He has owned, built and tuned some of the fastest DSMs in the Washington, D.C. area. He has been a DSM enthusiast since 1997. He has extensive knowledge of the AEM EMS and is responsible for the DSM-specific calibration changes needed to best utilize the custom trigger discs.