Fuel Injector Clinic 525cc High-Z Injector Set (ish01-0525h) - Holley GM and Ford
Upgrade your Holley-equipped GM or Ford fuel system with the Fuel Injector Clinic 525cc High-Z injector set. This matched set of eight performance injectors flows 525cc/min, or 50 lbs/hr, at 43.5 PSI fuel pressure and 600cc/min, or 58 lbs/hr, at OE 58 PSI fuel pressure. Designed for performance applications that need increased fueling capability without sacrificing low-speed control, these saturated high-impedance injectors deliver excellent linearity and short pulse width repeatability for predictable tuning, crisp response, and strong drivability.
Fuel Injector Clinic precisely flow matches the ish01-0525h injector set to within 1 percent. Each injector is individually numbered, and the results for every injector are documented on the detailed flow sheet included with the set. FIC flow tests and rates its high-performance injectors at 43.5 PSI / 3 Bar and 90 degrees F fuel temperature using CF-16B calibration fluid. The set includes PGTUSC8 solder-in pigtails, while optional PADPUtoJ8 plug-and-play adapters provide an alternative for compatible installations where cutting and soldering the vehicle harness is not desired.
Specifications
- Part Number: ish01-0525h
- Application: Holley GM and Ford
- Injector Quantity: 8
- Flow Rate at 43.5 PSI: 525cc/min
- Flow Rate at 43.5 PSI: 50 lbs/hr
- Flow Rate at OE 58 PSI: 600cc/min
- Flow Rate at OE 58 PSI: 58 lbs/hr
- Impedance: High impedance / saturated
- Flow Matching: Precisely flow matched to within 1 percent
- Included Pigtails: PGTUSC8
- Optional Plug-and-Play Adapters: PADPUtoJ8
- Test Pressure: 43.5 PSI / 3 Bar
- Test Fuel Temperature: 90 degrees F
- Calibration Fluid: CF-16B
- O-Rings: Includes O-rings required for the intended application
- Warranty: Lifetime warranty against failure caused by defects in original manufacture
Features
- Complete set of eight 525cc/min performance fuel injectors
- Designed for Holley GM and Ford applications
- 50 lbs/hr flow rating at 43.5 PSI fuel pressure
- 600cc/min and 58 lbs/hr flow rating at OE 58 PSI fuel pressure
- Saturated high-impedance injector design
- Excellent linearity for consistent, predictable fuel delivery
- Superior short pulse width control and repeatability
- Precisely flow matched to within 1 percent
- Each injector is individually numbered
- Detailed injector flow results supplied with the set
- Flow tested and rated at 43.5 PSI / 3 Bar
- Tested at 90 degrees F fuel temperature using CF-16B calibration fluid
- Includes PGTUSC8 solder-in pigtails
- Optional PADPUtoJ8 plug-and-play adapters available
- Includes O-rings required for the intended application
- Uses brand-new, unused injectors rather than remanufactured or core-program injectors
- Designed for straightforward tuning and excellent drivability
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects
525cc High-Z Performance for Holley EFI Builds
The ish01-0525h provides Holley-equipped GM and Ford performance combinations with increased fuel capacity while retaining the control required for a well-mannered calibration. Rated at 525cc/min at 43.5 PSI and 600cc/min at OE 58 PSI, these injectors provide a useful step up in fuel delivery for modified combinations while maintaining the linear response and short pulse width control needed during idle, cruising, and part-throttle operation.
Precisely Flow Matched to Within 1 Percent
A quality injector set needs more than an advertised flow number. Consistent fuel delivery across all eight cylinders is critical to accurate calibration and predictable engine performance. Fuel Injector Clinic precisely flow matches each ish01-0525h set to within 1 percent. Every injector is individually numbered, and its results are documented on the detailed flow sheet included with the set.
Short Pulse Width Control and Drivability
Performance injectors still need to accurately meter small quantities of fuel during idle and light-throttle operation. Fuel Injector Clinic combines the ish01-0525h's increased flow capacity with superior short pulse width control, excellent linearity, and tight manufacturing tolerances. This gives your tuner predictable injector behavior across the operating range and helps maintain the drivability expected from a properly calibrated street or performance build.
Pigtails Included with Plug-and-Play Adapter Option
The ish01-0525h set includes PGTUSC8 pigtails for installations requiring an injector connector change. The supplied pigtails can be soldered into the wiring harness to replace the existing injector connectors. For compatible applications where cutting or soldering the harness is not desired, optional PADPUtoJ8 plug-and-play adapters can be selected to provide the required connector conversion.
Fuel Injector Clinic chooses to supply brand-new, unused injectors for its performance applications instead of relying on remanufactured or core-program injectors. Depending on the specific installation, this can require a connector conversion, but it allows the injector package to be built around new components rather than previously used injector cores.
Fitment
- Holley GM applications
- Holley Ford applications
Fitment Note: This is a Holley GM and Ford application injector set rather than a vehicle-specific injector package. Injector compatibility depends on the specific Holley intake, fuel rail, connector, and fuel-system configuration being used. Contact Beefcake Racing before ordering if you need assistance confirming compatibility with your setup.
FAQs
How much do FIC ish01-0525h injectors flow at 58 PSI?
The ish01-0525h injectors flow 600cc/min, or 58 lbs/hr, at OE 58 PSI / 4 Bar fuel pressure. They are also rated at 525cc/min, or 50 lbs/hr, at 43.5 PSI / 3 Bar.
What connectors are included with the ish01-0525h injector set?
The set includes PGTUSC8 solder-in pigtails. Optional PADPUtoJ8 plug-and-play adapters are available for compatible installations where you want to avoid cutting and soldering the wiring harness.
Why Buy from Beefcake Racing?
Beefcake Racing specializes in performance fuel systems and the components required to support everything from modified street combinations to serious high-horsepower builds. Matching injector size, operating fuel pressure, connector configuration, and supporting fuel-system hardware is critical to reliable fuel delivery and accurate tuning. Our experienced team can help you determine whether the FIC ish01-0525h is the right injector set for your Holley GM or Ford combination.
Questions about Fuel Injector Clinic part number ish01-0525h or your Holley fuel-system setup? Email Beefcake Racing at sales@beefcakeracing.com or call 1-855-827-7223.
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