Description
The FiTech Rebel LS 500HP EFI Short Cath. 340LPH & Returnless Mod. (76388) is a comprehensive fuel injection solution designed for LS engines, providing enhanced performance and fuel management. This kit includes a short LS7 port intake manifold, a high-capacity in-tank fuel pump, and all necessary electronic components for a complete installation. Engineered for engines producing up to 500 horsepower, this system supports various fuel types and is compatible with power adders.
KEY FEATURES AND BENEFITS:
- Optimized Fuel Delivery: Multi-port injection and 36 lbs/hr injectors ensure precise fuel delivery for improved engine performance.
- Complete System: Includes ECU, sensors (MAP, IAT, TPS, Oxygen), and wiring harness for a straightforward installation.
- High-Capacity Fuel Pump: The included in-tank fuel pump provides reliable fuel delivery to support high-performance applications.
- Versatile Fuel Compatibility: Supports gasoline, alcohol, methanol, and flex fuel, allowing for flexibility in fuel selection.
- Power Adder Ready: Compatible with boost and nitrous oxide systems for increased power output.
- Speed Density Metering: Ensures accurate fuel-air ratio for optimal performance.
- 92mm Throttle Body: Increases airflow for improved combustion efficiency.
SPECIFICATIONS:
- Maximum Horsepower: 500 HP
- Injection Style: Multi-port
- Timing Control: Compatible
- Power Adder Compatibility: Boost/Nitrous oxide
- ECU: Included
- Fuel Pump: In-tank
- Metering Style: Speed density (Map-N)
- Intake Manifold: Short LS7 Port, Aluminum (Black Anodized)
- Throttle Body: 92 mm, GM LS2 4-bolt
- Injectors: 36 lbs/hr
- Fuel Types: Alcohol, Gasoline, Methanol, Flex
- Compatibility: LS Series Engines
HOW TO USE:
- Preparation: Disconnect the vehicle’s battery and remove the existing intake manifold and fuel system components.
- Fuel Pump Installation: Install the provided in-tank fuel pump according to the manufacturer’s instructions, ensuring proper fuel line connections.
- Intake Manifold Installation: Mount the short LS7 port intake manifold onto the engine, securing it with the provided hardware.
- Throttle Body and Injector Installation: Attach the 92 mm throttle body and install the 36 lbs/hr injectors into the intake manifold.
- Sensor and Wiring Installation: Connect the MAP, IAT, TPS, and Oxygen sensors to their respective locations, and route the wiring harness to the ECU.
- ECU Setup: Mount the ECU in a suitable location and connect the wiring harness.
- Fuel Pressure Regulation: Install the fuel pressure regulator and connect the fuel lines.
- Calibration: Use the included calibration module to program the ECU according to your engine’s specifications.
- Testing and Adjustment: Start the engine and monitor fuel pressure and engine performance. Make necessary adjustments to the ECU calibration.
- Final Checks: Ensure all connections are secure and test the vehicle under various driving conditions.
BENEFITS OF USING THE FITECH REBEL LS 500HP EFI SHORT CATH. 340LPH & RETURNLESS MOD. (76388):
- Improved Engine Performance: Precise fuel delivery and tuning capabilities result in increased horsepower and torque.
- Enhanced Fuel Efficiency: Optimized fuel management leads to better fuel economy.
- Simplified Installation: The complete kit includes all necessary components for a streamlined installation process.
- Versatile Application: Compatible with various fuel types and power adders, making it suitable for a wide range of LS engine builds.
- Reliable Fuel Delivery: The included in-tank fuel pump ensures consistent fuel pressure.
FEATURES:
- 36 lbs/hr fuel injectors for optimal fuel delivery.
- In-tank fuel pump integrated for convenience.
- Speed density (Map-N) metering for accurate fuel management.
- Full wiring harness included for easy installation.
- Calibration module included for quick setup.
- Compatibility with multiple fuel types for flexibility.
- Designed for LS engine fitment with all needed sensors included.






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