Fuel Injector Clinic 1440cc Fuel Injector Set - High Z (1989-2005 Mazda Miata MX-5 NA/NB) (is601-1440h)
Give your 1989-2005 Mazda Miata MX-5 NA or NB the fuel capacity needed for a serious high-performance build with the Fuel Injector Clinic 1440cc High-Z Fuel Injector Set. Part number is601-1440h includes four 1440cc saturated, high-impedance ball and seat injectors that deliver substantial fuel flow while maintaining the precise control needed for excellent street drivability. Positioned between FIC's 1200cc and 1650cc offerings, the 1440cc injector is an excellent choice for Miata builds that need more fueling capability without giving up strong idle quality, short pulse width control, or predictable tuning characteristics.
Fuel Injector Clinic's 1440cc high-impedance injector features stainless alloy valve construction for broad fuel compatibility, including pump gasoline, E85, Q16, VP Import, FTW, and other MTBE oxygenated race fuels. Each is601-1440h set is precisely matched using FIC's proprietary Data Match Technology. Every injector is individually serial numbered, and the included Data Match Sheet provides detailed flow matching and latency information. 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.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is601-1440h
- Injector Quantity: 4
- Flow Rating: 1440cc/min
- Injector Type: Saturated / high impedance
- Injector Design: Ball and seat
- Valve Construction: Stainless alloy
- 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
- Fuel Compatibility: Pump gasoline, E85, Q16, VP Import, FTW, and other MTBE oxygenated race fuels
- 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 1440cc high-impedance fuel injectors for the 1989-2005 Mazda Miata MX-5 NA/NB
- High-flow design positioned between FIC's 1200cc and 1650cc injector offerings
- Substantial fueling capability for higher-horsepower Miata applications
- Excellent idle performance for powerful street-driven builds
- Superior short pulse width control supports precise fueling and strong drivability
- Stainless alloy valve construction provides broad fuel compatibility
- Compatible with pump gasoline, E85, Q16, VP Import, FTW, and other MTBE oxygenated race fuels
- 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 predictable injector behavior for accurate tuning
- 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
High-Flow Performance With Street Drivability
The is601-1440h is designed for Miata combinations that need serious injector capacity while retaining the low-speed control required for a well-mannered street car. Its combination of high-impedance operation, excellent idle performance, superior short pulse width control, and Data Match Technology gives tuners predictable injector behavior across a wide operating range. That makes the 1440cc set particularly well suited to high-output builds that still spend time cruising, idling, and operating under normal street conditions.
Wiring and Installation
The is601-1440h injector set can be installed using the included PGTUSC4 solder-in pigtails to replace the existing injector connectors. If you prefer an installation without cutting or soldering the factory wiring harness, 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
What fuels are compatible with the Fuel Injector Clinic is601-1440h injectors?
The 1440cc high-impedance injector uses stainless alloy valve construction and is compatible with pump gasoline, E85, Q16, VP Import, FTW, and other MTBE oxygenated race fuels.
Do the Fuel Injector Clinic is601-1440h injectors require a wiring change?
The set includes PGTUSC4 solder-in pigtails for injector connector installation. 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, fuel compatibility, 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
