Fuel Injector Clinic Four Cylinder 1650cc Custom Injector Set - 64mm Height - 14mm Top O-Ring Diameter - 21mm Bottom O-Ring Diameter (ISC-1650H-4)
The Fuel Injector Clinic 1650cc Custom Injector Set is engineered for custom four-cylinder performance applications requiring a 64mm injector height, 14mm top O-ring diameter, and 21mm bottom O-ring diameter. Delivering 1650cc/min of fuel flow, these high impedance injectors are built for serious street, drag racing, road racing, and dedicated competition builds that demand exceptional fueling capacity while maintaining excellent idle quality and smooth drivability when properly calibrated.
Every injector is individually serial numbered and precisely matched using Fuel Injector Clinic's proprietary Data Match Technology, delivering industry-leading cylinder-to-cylinder consistency along with detailed latency information for more accurate ECU calibration. Each custom injector set includes solder-in pigtails, the required O-rings for the specified dimensions, and a comprehensive Data Match Sheet. Every injector is flow tested at 43.5 PSI (3 Bar) at 90 degrees F using CF-16B calibration fluid and is backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Quick Specs
- Manufacturer: Fuel Injector Clinic
- Part Number: ISC-1650H-4
- Product Code: 1650-64-14-21-4
- Injector Quantity: Set of Four
- Engine Configuration: Four Cylinder
- Flow Rate: 1650cc/min
- Injector Type: High Impedance
- Injector Height: 64mm
- Top O-Ring Diameter: 14mm
- Bottom O-Ring Diameter: 21mm
- Flow Tested: 43.5 PSI (3 Bar) at 90 degrees F using CF-16B Calibration Fluid
- Matching: Fuel Injector Clinic Data Match Technology
- Included: Four Injectors, Solder-In Pigtails, Required O-Rings, and Data Match Sheet
- Warranty: Lifetime Warranty Against Manufacturing Defects
Features
- Custom four-cylinder injector set with a 64mm height, 14mm top O-ring, and 21mm bottom O-ring configuration.
- 1650cc/min high impedance injectors engineered for demanding high-horsepower street and race applications.
- Excellent idle quality and drivability when professionally tuned.
- Precisely matched using Fuel Injector Clinic's proprietary Data Match Technology.
- Each injector is individually serial numbered and includes a comprehensive Data Match Sheet.
- Flow tested at 43.5 PSI (3 Bar) at 90 degrees F using CF-16B calibration fluid.
- Superior short pulse width control improves tuning accuracy and low-load drivability.
- Includes solder-in pigtails for custom wiring installations.
- Supplied with all required O-rings for the specified injector dimensions.
- Backed by Fuel Injector Clinic's lifetime warranty against manufacturing defects.
Fitment
- Custom four-cylinder engine applications
- Applications requiring a 64mm injector height
- Applications requiring a 14mm 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 unique fuel system configuration, contact Beefcake Racing before purchasing to ensure you receive the correct injector setup.
FAQs
What applications are these 1650cc injectors designed for?
This custom injector set is intended for four-cylinder performance engines requiring a 64mm injector height with 14mm upper and 21mm lower O-ring dimensions. They are ideal for turbocharged, supercharged, and naturally aspirated builds that require high fuel flow and consistent injector performance.
Why is Fuel Injector Clinic's Data Match Technology valuable?
Every injector is individually flow tested, serial numbered, and precisely matched before shipment. The included Data Match Sheet provides detailed flow and latency information, helping tuners achieve accurate ECU calibrations and consistent cylinder-to-cylinder fuel delivery.
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. Our experienced team can help verify injector dimensions, fuel compatibility, and application requirements to ensure 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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