Fuel Injector Clinic Four Cylinder 525cc Custom Injector Set - 53mm Height - 11mm Top O-Ring Diameter - 21mm Bottom O-Ring Diameter (Product Code: 0525-53-11-21-4) - ISC-0525H-4
The Fuel Injector Clinic 525cc Custom Injector Set is engineered for four-cylinder performance applications that require dependable fuel delivery, excellent drivability, and repeatable tuning performance. Featuring a 53mm injector height, 11mm top O-ring diameter, and 21mm bottom O-ring diameter, this custom high impedance injector set delivers precise fueling for naturally aspirated, turbocharged, and supercharged engine combinations. Superior short pulse width control and tight manufacturing tolerances provide smooth idle quality, crisp throttle response, and predictable ECU calibration.
Every injector is individually numbered and precision flow matched to within 1% for exceptional cylinder-to-cylinder consistency. Each injector set is flow tested at 43.5 PSI (3 Bar) at 90 degrees F using CF-16B calibration fluid and includes solder-in pigtails, the correct O-rings for the specified dimensions, and a detailed flow sheet documenting the performance of every injector. Fuel Injector Clinic backs every injector against manufacturing defects with a lifetime warranty for long-term confidence in your fuel system.
Quick Specs
- Manufacturer: Fuel Injector Clinic
- Part Number: ISC-0525H-4
- Product Code: 0525-53-11-21-4
- Injector Quantity: Set of Four
- Engine Configuration: Four Cylinder
- Flow Rate: 525cc/min
- Injector Type: High Impedance
- Injector Height: 53mm
- Top O-Ring Diameter: 11mm
- Bottom O-Ring Diameter: 21mm
- Flow Matching: Precision Matched to Within 1%
- Flow Tested: 43.5 PSI (3 Bar) at 90 degrees F Using CF-16B Calibration Fluid
- Included: Four Injectors, Solder-In Pigtails, Required O-Rings, and Detailed Flow Sheet
- Warranty: Lifetime Warranty Against Manufacturing Defects
Features
- Custom four-cylinder injector set with a 53mm body, 11mm top O-ring, and 21mm bottom O-ring configuration.
- 525cc/min high impedance injectors for naturally aspirated, turbocharged, and supercharged applications.
- Precision flow matched to within 1% for exceptional cylinder-to-cylinder consistency.
- Superior short pulse width control for excellent idle quality and drivability.
- Tight manufacturing tolerances simplify ECU tuning and calibration.
- Flow tested at 43.5 PSI (3 Bar) at 90 degrees F using CF-16B calibration fluid.
- Each injector is individually numbered and supplied with a detailed flow sheet.
- Includes solder-in pigtails for custom wiring installations.
- Supplied with all required O-rings for the specified injector dimensions.
- Covered by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Fitment
- Custom four-cylinder engine applications
- Applications requiring a 53mm injector height
- Applications requiring an 11mm top O-ring diameter
- Applications requiring a 21mm bottom O-ring diameter
This injector set is intended for custom applications and is not vehicle specific. Compatibility is determined by injector height, O-ring dimensions, fuel rail, intake manifold, electrical connector, and engine management system. Verify all measurements before ordering. If you are using an aftermarket or specialized fuel system configuration, contact Beefcake Racing before placing your order to ensure you receive the correct injector setup.
FAQs
What benefits does high impedance injector technology provide?
High impedance injectors offer broad ECU compatibility, excellent short pulse width control, smooth idle characteristics, and consistent fuel delivery for both street and performance applications.
What should I verify before purchasing this injector set?
Confirm your application requires a 53mm injector height with an 11mm top O-ring and a 21mm bottom O-ring diameter. Also verify compatibility with your fuel rail, intake manifold, electrical connector, and engine management system.
Why Buy From Beefcake Racing?
When you purchase Fuel Injector Clinic products from Beefcake Racing, you're buying from enthusiasts who understand custom fuel systems and performance engine combinations. Our experienced team can help verify injector sizing, dimensions, and compatibility so you receive the correct injector set for your build.
If you have questions before ordering, contact us at sales@beefcakeracing.com or call 1-855-827-7223. We're here to help you build with confidence.
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