Fuel Injector Clinic 525cc Fuel Injector Set - High Z (1989-2005 Mazda Miata MX-5 NA/NB) (is601-0525h)
Upgrade the fuel system in your 1989-2005 Mazda Miata MX-5 NA or NB with the Fuel Injector Clinic 525cc High-Z Fuel Injector Set. Part number is601-0525h includes four 525cc saturated, high-impedance ball and seat injectors engineered for excellent linearity, repeatable short pulse width operation, and dependable drivability. With increased fueling capability and precise flow matching, this set gives modified Miata builds the consistent fuel delivery tuners need while retaining the control that matters during idle, cruising, and part-throttle operation.
Fuel Injector Clinic precisely flow matches each is601-0525h injector set to within 1%. Every injector in the set is individually numbered, with its results documented on the detailed flow sheet included with the injectors. 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. PGTUSC4 solder-in pigtails are included, while optional PADPUtoD4 plug-and-play adapters provide an installation option without cutting or soldering the factory wiring harness.
Specifications
- Manufacturer: Fuel Injector Clinic
- Part Number: is601-0525h
- Injector Quantity: 4
- Flow Rating: 525cc/min
- Injector Type: Saturated / high impedance
- Injector Design: Ball and seat
- Flow Matching: Precisely flow matched to within 1%
- 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 525cc high-impedance fuel injectors for the 1989-2005 Mazda Miata MX-5 NA/NB
- Saturated, high-impedance ball and seat injector construction
- Increased fueling capability for modified and performance Miata applications
- Precisely flow matched to within 1% for consistent cylinder-to-cylinder fuel delivery
- Each injector is individually numbered with results documented on the included flow sheet
- Excellent linearity supports predictable injector operation and accurate tuning
- Superior short pulse width control helps provide smooth idle and part-throttle drivability
- Tight manufacturing tolerances promote consistent and repeatable injector performance
- 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 is601-0525h 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 prefer to retain the factory wiring 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 is601-0525h injectors matched?
Fuel Injector Clinic precisely flow matches each high-performance injector set to within 1%. Every injector is individually numbered, and the results for each injector are provided on the detailed flow sheet included with the set.
Do the Fuel Injector Clinic is601-0525h 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
