In our research, we have found that cars travelling above 150MPH will either need a fuel pump upgrade or larger injectors. At 150+ mph, the injector duty cycle is over 85% and is considered extremely dangerous.
After sending the stock injectors to two independent labs, we were told by both that the maximum supported horsepower is 485-500WHP.
We highly recommend that any cars travelling this fast to upgrade to the larger Bosch 550cc injectors.
Bosch 52lb/hour 550cc High Impedance Fuel Injector
Genuine Bosch High Impedance Injectors
These injectors flow 52 lbs/hr at 43.5 PSI ( 3 BAR ) and more at higher PSI. In addition, these units are high-impedance. Despite the high flow rate, they are linear and controllable at low pulse widths and have been used in ULEV applications! This allows you to use a larger injector than normally possible without hurting idle and low speed driveability. Adding to the flexibility of application, these units are high-impedance; making them compatible with most ECUs, while delivering the most flow available in a High-Impedance injector. These injectors represent the most current Bosch engineering and are used on many high power oem applications.
These injectors are able to function at high fuel pressures and don't exhibit the high fuel pressure handling problems found with many other high flow high-impedance injectors. Many tuners push these injectors to 6 bar and higher.
Engine performance and running quality are enhanced through the optimized spray pattern. Unlike competitors high flow injectors; these High Flow injectors utilize a multi-orifice tip for improved mixture preparation and atomization. This results in lower BSFC and better idle quality than many injectors with less flow.
Genuine, reliable Bosch Injectors
Excellent response characteristics
Low Impedance performance characteristics with High Impedance Compatibility
Coil Resistance: 12 Ohms (This high-impedance injector will work with all factory ECM/PCM injector drivers)
Spray Pattern: Wide Split Cone, (6 orifice)
Electrical Connector: USCAR (New-style EV6 / Oval / LS2)
Fitted with Viton upper and lower o-rings.
Static Flow Rate @ 43.5PSI (300kPa): 51.72 lb/hr = 6.52g/s = 544cc/min
Overall Length: 65.5mm
Dimensions: 48.5mm o-ring seat to seat, 53.5mm o-ring centerline to centerline
Perfect for high performance applications looking for a high flow, wide dynamic range injector with superb idle quality.