Disc High-Z Fuel Injector

The Racetronix FJ-SM-51S is a high-impedance fuel injector designed for high-performance aftermarket applications. It features a disc design that resists build-up and clogging, ensuring a longer service life and consistent fuel flow. The high-speed disc action provides a wider dynamic flow range, contributing to improved idling and quieter operation. Its flat mating surface prevents excess fuel evaporation and deposits. Dynamically flowed and grouped to within 1% tolerance when purchased in packs, these injectors utilize Racetronix's custom flow bench. Testing is conducted with n-Heptane at specific pressures and voltages, with results convertible to gasoline flow rates using a 1.035:1 ratio. This high-impedance injector is compatible with all factory ECM/PCM injector drivers. Grease is supplied to lubricate the o-rings prior to installation for a proper seal and to prevent fuel leakage, aiding in quicker starts. While injectors sold individually (EACH) adhere to the listed factory tolerance, Racetronix offers flow-matched 1% injectors when purchased in packs via the 'Buy In' drop-down menu, ensuring optimal performance and consistency for demanding applications.