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StandardBrand com IntermotorImport com Multi Port Fuel Injection MFI System GM s Vortec engines come with a Sequential Port Injection System SCPI Standard s Multi Port Fuel Injection MFI system has several advantages over the original Sequential Central Port Injection SCPI system including port fuel delivery and high reliability better hot starts and reduced vapor emissions and faster prime on hot restarts Improved spray injector nozzle design with longer seat and no valvet ball reduces deposit buildup that can cause clogs Improved hot fuel handling over SCPI system Lack of poppet valve eliminates problem of deposit build up Enhanced pressure control at low recirculation rates FJ503 Multi Port Fuel Injection MFI System GM V6 4 3L OE SCPI Injection System The above Multi Port Fuel Injector is also available for the GM V8 FJ504 Multi Port Fuel Injection MFI System GM V8 4 3L Tech Tip For successful installation lubricate injector tips and O ring seals with transmission assembly gel petroleum jelly or even clean engine oil Do not use silicone StandardBrand com IntermotorImport com ST10235MPFI FEB19 Standard s MFI Advantages Built to last up to 10 yrs 100 000 miles an improvement over the SCPI system Improved sealing over SCPI system Better transient response over SCPI system Low vacuum sensitivity Advanced pulse to pulse precision low voltage performance at open throttle Low heat transfer to fuel Faster temperature stabilization over SCPI system Low heat transfer to fuel tank Manufacturing and Testing Designed and Built in the USA Standard injectors are designed and built at SMP s vertically integrated TS16949 certified manufacturing plant in Greenville SC As a result we re able to yield fuel injectors that meet our strict quality control standards In addition to designing and engineering we subject our injectors to extensive end of line and life cycle testing Passing the Test To make sure every fuel injector meets our strict standards for precision quality enhanced performance and extra durability Standard perform initial life cycle validation and 100 end of line testing What s more we subject our fuel injectors to more than 35 different tests and inspections Here are just a few of the elements and components that we test and inspect Body Color Endurance Static Flow Rate Body Style Humidity Thermal Cycles Coil Resistance Linearity Vibration Connector Shape Shock Load and more Dynamic Flow Rate Spray Pattern What Our Manufacturing and Testing Means for You Precision quality enhanced performance extra durability and 100 consistent product reliability
