Fuel Injector Clinic 650cc Fuel Injector Set - High Z (1989-2005 Mazda Miata MX-5 NA/NB) (is601-0650h)
Upgrade the fuel delivery in your 1989-2005 Mazda Miata MX-5 NA or NB with the Fuel Injector Clinic 650cc High-Z Fuel Injector Set. Part number is601-0650h includes four 650cc saturated, high-impedance ball and seat injectors engineered for excellent linearity, repeatable short pulse width operation, and dependable drivability. Whether you are building a modified street Miata or stepping up the fuel system for a more demanding performance combination, these injectors provide increased fueling capability backed by precise matching and detailed injector data for accurate tuning.
Fuel Injector Clinic precisely matches the is601-0650h set using its proprietary Data Match Technology. Each injector is individually serial numbered, and the included Data Match Sheet provides detailed flow matching and latency information for the specific injectors in your set. FIC flow tests and rates these injectors at 43.5 PSI (3 Bar) with fuel temperature maintained at 90 degrees F using CF-16B calibration fluid. Superior short pulse width control and state-of-the-art matching help provide predictable injector behavior and excellent drivability throughout the operating range.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is601-0650h
- Injector Quantity: 4
- Flow Rating: 650cc/min
- Injector Type: Saturated / high impedance
- Injector Design: Ball and seat
- Matching: Fuel Injector Clinic Data Match Technology
- FIC Test Pressure: 43.5 PSI (3 Bar)
- Test Fuel Temperature: 90 degrees F
- Calibration Fluid: CF-16B
- Included Wiring: PGTUSC4 solder-in pigtails
- Optional Wiring Adapter: PADPUtoD4 plug-and-play adapters
- Seals: Includes the O-rings required for the listed factory application
- Warranty: Lifetime warranty against failure caused by defects in original manufacture
Features
- Four 650cc high-impedance fuel injectors for the 1989-2005 Mazda Miata MX-5 NA/NB
- Saturated, high-impedance ball and seat injector design
- Increased fuel flow for modified and higher-performance Miata applications
- Excellent linearity supports predictable injector operation and accurate tuning
- Superior short pulse width control helps maintain smooth idle and part-throttle drivability
- Proprietary Data Match Technology provides precise injector set matching
- Each injector is individually serial numbered for identification and documentation
- Includes a Data Match Sheet with detailed flow matching and latency information
- State-of-the-art matching helps provide consistent injector behavior across all four cylinders
- Flow tested and rated at 43.5 PSI (3 Bar) with fuel temperature maintained at 90 degrees F
- Testing performed using CF-16B calibration fluid
- Includes PGTUSC4 solder-in pigtails for injector connector conversion
- Optional PADPUtoD4 plug-and-play adapters allow installation without cutting or soldering the factory wiring harness
- Supplied with the O-rings required for the listed factory application
- Uses brand-new, unused injectors rather than remanufactured or core-program injectors
- Covered by Fuel Injector Clinic's lifetime warranty against defects in original manufacture
Wiring and Installation
The is601-0650h injector set requires an injector connector change when installed with the included PGTUSC4 pigtails. The pigtails can be soldered into the vehicle's wiring harness to replace the existing injector connectors. If you want to retain the factory harness without cutting or soldering, optional PADPUtoD4 plug-and-play adapters can be used instead.
Fuel Injector Clinic uses brand-new, unused injectors for its performance applications rather than relying on remanufactured or core-program injectors. The injectors are configured with the O-rings required for the listed factory application. If your Miata uses an aftermarket fuel rail or another non-standard fuel system configuration, contact Beefcake Racing before ordering to verify proper injector fitment.
Fitment
- 1989 Mazda Miata MX-5 NA
- 1990 Mazda Miata MX-5 NA
- 1991 Mazda Miata MX-5 NA
- 1992 Mazda Miata MX-5 NA
- 1993 Mazda Miata MX-5 NA
- 1994 Mazda Miata MX-5 NA
- 1995 Mazda Miata MX-5 NA
- 1996 Mazda Miata MX-5 NA
- 1997 Mazda Miata MX-5 NA
- 1998 Mazda Miata MX-5 NB
- 1999 Mazda Miata MX-5 NB
- 2000 Mazda Miata MX-5 NB
- 2001 Mazda Miata MX-5 NB
- 2002 Mazda Miata MX-5 NB
- 2003 Mazda Miata MX-5 NB
- 2004 Mazda Miata MX-5 NB
- 2005 Mazda Miata MX-5 NB
FAQs
How are the Fuel Injector Clinic is601-0650h injectors matched?
Fuel Injector Clinic uses its proprietary Data Match Technology to precisely match the injector set. Each injector is individually serial numbered, and the included Data Match Sheet provides detailed flow matching and latency information for the specific injectors you receive, giving your tuner valuable data for accurate calibration.
Do the Fuel Injector Clinic is601-0650h injectors require a wiring change?
Yes, when using the included PGTUSC4 solder-in pigtails. If you prefer to retain the factory wiring harness without cutting or soldering, optional PADPUtoD4 plug-and-play adapters can be used instead.
Why Buy Fuel Injector Clinic Injectors From Beefcake Racing?
Beefcake Racing specializes in high-performance fuel system upgrades and can help you select the right injectors and supporting components for your Mazda Miata MX-5 build. Whether you have questions about injector sizing, wiring adapters, tuning requirements, or compatibility with an aftermarket fuel system, our performance specialists can help you choose the correct components for your combination.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
