When boosting the horsepower on a Kawasaki four stroke fuel injected engine, whether using high compression pistons, cams, or higher ratio supercharger compressor wheels, it will be necessary to increase the fuel flow delivery. The O.E.M. Kawasaki injectors have been precision flow rate tested to be 90 to 95 percent peaked on stock units at sea level without modifications. R&D offers high performance fuel injectors with a higher atomization spray pattern that are easily capable of delivering fuel flow specifications to accommodate up to 375-400 horsepower!
R&D has flow rate tested the O.E.M. Ultra 250X injectors and verified them to flow 375cc at 40 PSI of fuel pressure, which rates them to flow 38 pounds of fuel per hour. The R&D High Performance Fuel Injectors have been precision flow rate tested to 625cc at 70 PSI of fuel pressure, which rates them to flow 62 pounds of fuel per hour. R&D High Performance Injectors have been flow rate tested to perform excellent, delivering precise fuel flow at fuel pressure ratings ranging from 40 to 80 PSI. R&D offers only the highest quality fuel injectors, fuel pressure regulators, and fuel management accessories for all your fuel management needs.