FuelTech 720 lb/hr Low Impedance Fuel Injector O-Ring/-4AN - 5010108235
High-Flow Fuel Delivery for Extreme Performance Builds
The FuelTech 720 lb/hr Low Impedance Fuel Injector is engineered for serious horsepower applications where fuel volume and precision are critical. Delivering 5,449 cc/min at 43.5 psi, this injector is capable of supporting demanding combinations producing 4,000+ horsepower.
Featuring a hybrid O-Ring inlet with -4AN outlet, this injector provides flexibility for custom fuel system layouts while helping reduce the number of injectors, fittings, and hoses required. It is an excellent choice for high-performance EFI systems where clean plumbing and maximum flow are priorities.
Precision Calibrated for Accurate Fueling
Each injector is individually tested and calibrated to ensure linearity, repeatability, and consistent cylinder-to-cylinder fuel delivery. This level of accuracy is critical for maintaining proper air-fuel ratios under high boost, nitrous, or extreme load conditions.
- Individually flow tested for consistent performance
- Supports precise tuning and stable air-fuel ratios
- Improves engine efficiency and reliability
- Ideal for motorsports and high-performance EFI applications
Compatible with All Fuels and ECUs
This injector is fully compatible with any standalone or aftermarket ECU, offering maximum flexibility for custom builds. It supports a wide range of fuels, including gasoline, ethanol, methanol, nitromethane, nitropropane, MTBE, and ETBE.
- Works with any ECU on the market
- Compatible with all major racing and pump fuels
- Reliable performance in high boost and nitro applications
Durable Construction for Harsh Environments
Built with corrosion-resistant internal components and validated through salinization testing, this injector is designed to withstand aggressive fuels and demanding racing conditions.
- Corrosion-resistant internal construction
- Proven durability in extreme environments
- Designed for long-term reliability
Important Installation Requirements
This injector features a low impedance (1.5 Ohms) design and requires a Peak and Hold driver, such as FuelTechs 8A/2A or Peak & Hold PRO Injector Driver, for proper operation and longevity.
Features
- 720 lb/hr (5,449 cc/min @ 43.5 psi) high-flow injector
- Low impedance design - 1.5 Ohms
- O-Ring inlet with -4AN outlet fitting
- EV1 connector with silver-plated terminals
- Individually tested and calibrated for accuracy
- Compatible with gasoline, ethanol, methanol, and nitro-based fuels
- Tested and approved in 4,000+ horsepower applications
- Corrosion-resistant internal components
- Compatible with all aftermarket ECUs
- FuelTech warranty and support
Quick Specs
- Brand: FuelTech
- Flow Rate: 720 lb/hr (5,449 cc/min @ 43.5 psi)
- Impedance: Low - 1.5 Ohms
- Voltage Limit: Up to 24V
- Fitting Type: O-Ring / -4AN
- Connector Type: EV1 (silver-plated terminals)
- Injector Dimensions: 86 x 32 mm
- Weight: 160g
- Package Dimensions: 223 x 162 x 60 mm
- Shipping Dimensions: 225 x 250 x 65 mm
- Included: 1 injector, manual
- Warranty: 90 days
- Part Number: 5010108235
FAQs
Do I need a Peak and Hold driver for this injector?
Yes. This injector operates at 1.5 Ohms and requires a Peak and Hold driver such as FuelTechs 8A/2A or PRO Injector Driver.
What makes this injector different from standard O-ring injectors?
The O-Ring to -4AN configuration allows for more flexible fuel system routing and can help simplify plumbing in high-performance and custom EFI builds.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for FuelTech injectors, fuel system components, and advanced engine management solutions. We help builders achieve reliable, high-performance results backed by real-world experience.
From street builds to full race applications, our team is here to support your setup with expert guidance and fast, dependable service.
Email: sales@beefcakeracing.com
Phone: 1-855-827-7223
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

